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Postcodes in the United Kingdom - Wikipedia

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class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Structure"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>Structure</span> </div> </a> <ul id="toc-Structure-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Postcode_area_names" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Postcode_area_names"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2</span> <span>Postcode area names</span> </div> </a> <ul id="toc-Postcode_area_names-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Postcode_districts_and_numbering" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Postcode_districts_and_numbering"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.3</span> <span>Postcode districts and numbering</span> </div> </a> <ul id="toc-Postcode_districts_and_numbering-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Postcode_use" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Postcode_use"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.4</span> <span>Postcode use</span> </div> </a> <ul id="toc-Postcode_use-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-History" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#History"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>History</span> </div> </a> <button aria-controls="toc-History-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle History subsection</span> </button> <ul id="toc-History-sublist" class="vector-toc-list"> <li id="toc-Earlier_postal_districts" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Earlier_postal_districts"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Earlier postal districts</span> </div> </a> <ul id="toc-Earlier_postal_districts-sublist" class="vector-toc-list"> <li id="toc-London" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#London"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1.1</span> <span>London</span> </div> </a> <ul id="toc-London-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Other_large_cities_and_towns" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Other_large_cities_and_towns"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1.2</span> <span>Other large cities and towns</span> </div> </a> <ul id="toc-Other_large_cities_and_towns-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Modern_postcode_system" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Modern_postcode_system"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Modern postcode system</span> </div> </a> <ul id="toc-Modern_postcode_system-sublist" class="vector-toc-list"> <li id="toc-Adaptation_of_earlier_systems_into_national_system" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Adaptation_of_earlier_systems_into_national_system"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2.1</span> <span>Adaptation of earlier systems into national system</span> </div> </a> <ul id="toc-Adaptation_of_earlier_systems_into_national_system-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-GB_postcodes_available_as_OpenData" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#GB_postcodes_available_as_OpenData"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2.2</span> <span>GB postcodes available as OpenData</span> </div> </a> <ul id="toc-GB_postcodes_available_as_OpenData-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Postcodes_linked_to_a_variety_of_UK_geographies" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Postcodes_linked_to_a_variety_of_UK_geographies"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2.3</span> <span>Postcodes linked to a variety of UK geographies</span> </div> </a> <ul id="toc-Postcodes_linked_to_a_variety_of_UK_geographies-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> </ul> </li> <li id="toc-Formatting" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Formatting"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Formatting</span> </div> </a> <button aria-controls="toc-Formatting-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Formatting subsection</span> </button> <ul id="toc-Formatting-sublist" class="vector-toc-list"> <li id="toc-Overview_2" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Overview_2"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Overview</span> </div> </a> <ul id="toc-Overview_2-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Outward_code" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Outward_code"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Outward code</span> </div> </a> <ul id="toc-Outward_code-sublist" class="vector-toc-list"> <li id="toc-Postcode_area" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Postcode_area"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2.1</span> <span>Postcode area</span> </div> </a> <ul id="toc-Postcode_area-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Postcode_district" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Postcode_district"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2.2</span> <span>Postcode district</span> </div> </a> <ul id="toc-Postcode_district-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Inward_code" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Inward_code"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3</span> <span>Inward code</span> </div> </a> <ul id="toc-Inward_code-sublist" class="vector-toc-list"> <li id="toc-Postcode_sector" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Postcode_sector"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3.1</span> <span>Postcode sector</span> </div> </a> <ul id="toc-Postcode_sector-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Postcode_unit" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Postcode_unit"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3.2</span> <span>Postcode unit</span> </div> </a> <ul id="toc-Postcode_unit-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Validation" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Validation"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.4</span> <span>Validation</span> </div> </a> <ul id="toc-Validation-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Post_towns" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Post_towns"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.5</span> <span>Post towns</span> </div> </a> <ul id="toc-Post_towns-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Special_cases" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Special_cases"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Special cases</span> </div> </a> <button aria-controls="toc-Special_cases-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Special cases subsection</span> </button> <ul id="toc-Special_cases-sublist" class="vector-toc-list"> <li id="toc-Crown_dependencies" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Crown_dependencies"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Crown dependencies</span> </div> </a> <ul id="toc-Crown_dependencies-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-British_Overseas_Territories" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#British_Overseas_Territories"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2</span> <span>British Overseas Territories</span> </div> </a> <ul id="toc-British_Overseas_Territories-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-British_Forces_Post_Office_(BFPO)" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#British_Forces_Post_Office_(BFPO)"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.3</span> <span>British Forces Post Office (BFPO)</span> </div> </a> <ul id="toc-British_Forces_Post_Office_(BFPO)-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Non-geographic_codes" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Non-geographic_codes"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.4</span> <span>Non-geographic codes</span> </div> </a> <ul id="toc-Non-geographic_codes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Special_postcodes" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Special_postcodes"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.5</span> <span>Special postcodes</span> </div> </a> <ul id="toc-Special_postcodes-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Operation" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Operation"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Operation</span> </div> </a> <button aria-controls="toc-Operation-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Operation subsection</span> </button> <ul id="toc-Operation-sublist" class="vector-toc-list"> <li id="toc-Sorting" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Sorting"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.1</span> <span>Sorting</span> </div> </a> <ul id="toc-Sorting-sublist" class="vector-toc-list"> <li id="toc-Integrated_Mail_Processors" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Integrated_Mail_Processors"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.1.1</span> <span>Integrated Mail Processors</span> </div> </a> <ul id="toc-Integrated_Mail_Processors-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Mailsort_and_Walksort" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Mailsort_and_Walksort"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.1.2</span> <span>Mailsort and Walksort</span> </div> </a> <ul id="toc-Mailsort_and_Walksort-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> </ul> </li> <li id="toc-Listings_and_availability" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Listings_and_availability"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Listings and availability</span> </div> </a> <button aria-controls="toc-Listings_and_availability-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Listings and availability subsection</span> </button> <ul id="toc-Listings_and_availability-sublist" class="vector-toc-list"> <li id="toc-Life-cycle_of_postcodes" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Life-cycle_of_postcodes"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.1</span> <span>Life-cycle of postcodes</span> </div> </a> <ul id="toc-Life-cycle_of_postcodes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Postcode_Address_File_(PAF)" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Postcode_Address_File_(PAF)"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.2</span> <span>Postcode Address File (PAF)</span> </div> </a> <ul id="toc-Postcode_Address_File_(PAF)-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Code-Point_Open" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Code-Point_Open"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.3</span> <span>Code-Point Open</span> </div> </a> <ul id="toc-Code-Point_Open-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-ONS_Postcode_Directory_and_National_Statistics_Postcode_Lookup" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#ONS_Postcode_Directory_and_National_Statistics_Postcode_Lookup"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.4</span> <span>ONS Postcode Directory and National Statistics Postcode Lookup</span> </div> </a> <ul id="toc-ONS_Postcode_Directory_and_National_Statistics_Postcode_Lookup-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Other_uses" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Other_uses"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Other uses</span> </div> </a> <ul id="toc-Other_uses-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Postcodes in the United Kingdom</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 14 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-14" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">14 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Postleitzahl_(Vereinigtes_K%C3%B6nigreich)" title="Postleitzahl (Vereinigtes Königreich) – German" lang="de" hreflang="de" data-title="Postleitzahl (Vereinigtes Königreich)" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Po%C5%9Dtkodoj_en_Britio" title="Poŝtkodoj en Britio – Esperanto" lang="eo" hreflang="eo" data-title="Poŝtkodoj en Britio" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Code_postal_au_Royaume-Uni" title="Code postal au Royaume-Uni – French" lang="fr" hreflang="fr" data-title="Code postal au Royaume-Uni" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gu mw-list-item"><a href="https://gu.wikipedia.org/wiki/%E0%AA%AF%E0%AB%81.%E0%AA%95%E0%AB%87._%E0%AA%AA%E0%AB%8B%E0%AA%B8%E0%AB%8D%E0%AA%9F%E0%AA%95%E0%AB%8B%E0%AA%A1%E0%AB%8D%E0%AA%B8" title="યુ.કે. પોસ્ટકોડ્સ – Gujarati" lang="gu" hreflang="gu" data-title="યુ.કે. પોસ્ટકોડ્સ" data-language-autonym="ગુજરાતી" data-language-local-name="Gujarati" class="interlanguage-link-target"><span>ગુજરાતી</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%AF%E0%A5%82%E0%A4%A8%E0%A4%BE%E0%A4%87%E0%A4%9F%E0%A5%87%E0%A4%A1_%E0%A4%95%E0%A4%BF%E0%A4%82%E0%A4%97%E0%A4%A1%E0%A4%AE_%E0%A4%AE%E0%A5%87%E0%A4%82_%E0%A4%AA%E0%A5%8B%E0%A4%B8%E0%A5%8D%E0%A4%9F%E0%A4%95%E0%A5%8B%E0%A4%A1" title="यूनाइटेड किंगडम में पोस्टकोड – Hindi" lang="hi" hreflang="hi" data-title="यूनाइटेड किंगडम में पोस्टकोड" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Daftar_kode_pos_di_Britania_Raya" title="Daftar kode pos di Britania Raya – Indonesian" lang="id" hreflang="id" data-title="Daftar kode pos di Britania Raya" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Codici_postali_del_Regno_Unito" title="Codici postali del Regno Unito – Italian" lang="it" hreflang="it" data-title="Codici postali del Regno Unito" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%AF%E0%B3%81%E0%B2%95%E0%B3%86_%E0%B2%AA%E0%B3%8B%E0%B2%B8%E0%B3%8D%E0%B2%9F%E0%B3%8D%E2%80%8C%E0%B2%95%E0%B3%8B%E0%B2%A1%E0%B3%8D%E2%80%8C%E0%B2%97%E0%B2%B3%E0%B3%81" title="ಯುಕೆ ಪೋಸ್ಟ್‌ಕೋಡ್‌ಗಳು – Kannada" lang="kn" hreflang="kn" data-title="ಯುಕೆ ಪೋಸ್ಟ್‌ಕೋಡ್‌ಗಳು" data-language-autonym="ಕನ್ನಡ" data-language-local-name="Kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Postcodes_in_het_Verenigd_Koninkrijk" title="Postcodes in het Verenigd Koninkrijk – Dutch" lang="nl" hreflang="nl" data-title="Postcodes in het Verenigd Koninkrijk" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Storbritannias_postkoder" title="Storbritannias postkoder – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Storbritannias postkoder" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Postal_codes_in_the_United_Kingdom" title="Postal codes 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id="mw-content-subtitle"><span class="mw-redirectedfrom">(Redirected from <a href="/w/index.php?title=Non-geographic_postcode&amp;redirect=no" class="mw-redirect" title="Non-geographic postcode">Non-geographic postcode</a>)</span></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><p class="mw-empty-elt"> </p> <figure class="mw-halign-right noresize" typeof="mw:File/Thumb"><span><img alt="Map of the United Kingdom and Crown dependencies showing postcode area boundaries" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/British_postcode_areas_map.svg/300px-British_postcode_areas_map.svg.png" decoding="async" width="300" height="464" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/British_postcode_areas_map.svg/450px-British_postcode_areas_map.svg.png 1.5x, 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coords="256,184,256,183,258,181,258,181,258,180,260,181,261,182,261,182,261,181,261,180,260,179,261,179,261,179,261,179,262,179,263,177,264,176,266,177,268,176,272,176,273,179,270,181,269,183,269,186,271,188,275,189,275,190,275,191,275,193,274,196,272,197,272,198,272,198,272,199,273,199,275,201,274,202,272,203,270,202,267,203,267,201,266,198,264,199,264,198,262,201,260,201,259,200,260,199,259,198,259,196,258,196,258,196,258,197,256,197,254,196,253,194,253,193,253,192,254,192,253,191,254,191,254,190,254,190,253,187,254,187,254,187,255,187,255,184" alt="SK postcode area" title="SK postcode area" /><area href="/wiki/ST_postcode_area" shape="poly" coords="251,203,251,203,254,201,256,202,257,201,259,200,260,201,262,201,264,198,264,199,266,198,267,201,267,203,270,202,269,203,269,203" alt="ST postcode area" title="ST postcode area" /><area href="/wiki/WA_postcode_area" shape="poly" coords="245,188,244,188,243,191,240,191,240,191,240,192,240,193,241,194,240,195,238,195,238,195,234,194,233,193,235,192,235,190,235,190,235,188,233,187,234,186,235,186,234,185,235,184,235,184,237,184,235,182,235,182,235,181,233,181,233,180,234,179,234,179,233,178,234,175,236,177,237,176,237,177,237,177,237,178,238,179,240,179,241,179,242,178,243,178,244,180,246,179,247,180,247,183,247,183,249,183,250,183,252,184,252,184,253,186,254,186,253,187,254,187,253,187,254,190,254,190,254,191,253,191,254,192,253,192,253,193,253,194,252,193,251,195,249,195,248,194,249,194,248,193,248,193,246,191,247,190,247,189" alt="WA postcode area" title="WA postcode area" /><area href="/wiki/WF_postcode_area" shape="poly" coords="287,170,286,171,285,170,285,171,284,171,281,170,280,171,279,170,277,170,276,168,276,168,275,167,276,166,274,166,274,165,274,165,274,164,276,164,277,163,277,163,277,162,278,162,278,163,279,163,280,163,281,162,282,162,283,162,284,162,285,163,284,163,285,163,286,164,287,163,288,162,287,162,288,161,289,161,290,160,291,161,292,161,292,162,293,163,294,163,294,162,296,162,296,163,294,163,295,165,296,165,296,165,294,166,294,167,293,167,295,168,295,168,295,169,294,170,293,170,291,172,289,173,289,171,288,171" alt="WF postcode area" title="WF postcode area" /><area href="/wiki/WN_postcode_area" shape="poly" coords="239,171,240,171,241,171,241,172,243,173,243,174,243,174,244,176,245,176,245,177,246,177,246,177,246,179,244,180,243,178,242,178,241,179,240,179,238,179,237,178,237,177,237,177,237,176,236,177,234,175,233,175,233,174,235,173,234,172,236,171,236,170,238,170,238,171" alt="WN postcode area" title="WN postcode area" /><area href="/wiki/YO_postcode_area" shape="poly" coords="298,164,296,163,296,162,295,160,295,160,296,159,296,157,296,156,297,155,293,154,297,152,296,151,296,151,295,151,294,150,290,149,291,149,290,148,290,146,289,146,289,145,288,143,287,142,287,141,285,141,284,140,284,139,285,139,286,140,286,139,286,139,298,139" alt="YO postcode area" title="YO postcode area" /></map><figcaption>Map of postcode areas in the United Kingdom and Crown dependencies, with links to each postcode area</figcaption></figure> <p><a href="/wiki/Postal_code" title="Postal code">Postal codes</a> used in the United Kingdom, <a href="/wiki/British_Overseas_Territories" title="British Overseas Territories">British Overseas Territories</a> and <a href="/wiki/Crown_dependencies" class="mw-redirect" title="Crown dependencies">Crown dependencies</a> are known as <b>postcodes</b> (originally, postal codes).<sup id="cite_ref-guide_1-0" class="reference"><a href="#cite_note-guide-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> They are <a href="/wiki/Alphanumeric" class="mw-redirect" title="Alphanumeric">alphanumeric</a> and were adopted nationally between 11 October 1959 and 1974, having been devised by the <a href="/wiki/General_Post_Office" title="General Post Office">General Post Office</a> (<a href="/wiki/Royal_Mail" title="Royal Mail">Royal Mail</a>).<sup id="cite_ref-Short_history_2-0" class="reference"><a href="#cite_note-Short_history-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> </p><p>The system was designed to aid in sorting mail for delivery. It uses <b>alphanumeric</b> codes to designate geographic areas. A full postcode, also known as a "postcode unit", identifies a group of addresses or a major delivery point. It consists of an outward code and inward code. The outward code indicates the area and district, while the inward code specifies the sector and delivery point, the delivery point typically encompassing about 10-15 addresses. </p><p>The initial postcode system evolved from named postal districts introduced in London and other large cities from 1857. Districts in London were then subdivided in 1917, with each allocated a distinct number, which extended to other cities by 1934. The territory of the UK is broken down into 121 postcode areas. Each postcode area contains multiple post towns and districts. Postcode areas are mnemonically named after the area's major post town (such as TR for <b>TR</b>uro) although some are named after smaller towns or regional areas. </p><p>Postcodes have since been additionally used in various applications. Postcodes help calculate insurance premiums, designate destinations in route planning software, and serve as aggregation units in census enumeration. The Postcode Address File (PAF) database stores and updates the boundaries and address data for around 29 million addresses, ensuring accurate delivery and extensive utility beyond postal services. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Overview">Overview</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=1" title="Edit section: Overview"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Structure">Structure</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=2" title="Edit section: Structure"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A full postcode is known as a "postcode unit" and designates an area with several addresses or a single major delivery point.<sup id="cite_ref-guide_1-1" class="reference"><a href="#cite_note-guide-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> The structure of a postcode is two alphanumeric codes that show, first, the name post town and, second, a small group of addresses in that post town. The first alphanumeric code (the outward code or outcode) has between two and four characters and the second (the inward code or incode) always has three characters. The outcode indicates the postcode area and postcode district. It consists of one or two letters, followed by one digit, two digits, or one digit and one letter. This is followed by a space and then the incode which indicates the postcode sector and delivery point (usually a group of around 10-15 addresses, but can vary). The incode (always three characters), starts with a number (denoting a sector within the district), and ends with two letters (denoting delivery points which are allocated to streets, sides of a street or individual properties). </p> <div class="mw-heading mw-heading3"><h3 id="Postcode_area_names">Postcode area names</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=3" title="Edit section: Postcode area names"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Postcode areas are usually, but not always, named after a major town or city – such as B for Birmingham. Some are named after a smaller town (e.g. Southall postcode area is UB after Uxbridge) or a combination of towns (e.g. SM appears to be named after <b>S</b>utton and <b>M</b>orden). A small number are regional – such as HS for the Outer <b>H</b>ebride<b>s</b>, FY for <b>Fy</b>lde (the region around Blackpool) and ME for the <b>Me</b>dway conurbation, with Rochester as its main post town. In the case of London (a Post Town), there is not a single "London" postcode area; rather there are eight (N, E, EC, SE, SW, W, WC and NW) reflecting the preceding system for coding London based on compass points. In the case of Northern Ireland, the entire province has a single postcode area BT (named for Belfast). Postcodes generally do not align with historical county or local authority boundaries, and can also cross national boundaries (e.g. the CH and TD postcode areas). The mnemonic features various combinations - most commonly, first two letters (CH for <b>CH</b>ester); first and last letters (BH for <b>B</b>ournemout<b>H</b>); first and key syllable letters (IV for <b>I</b>n<b>V</b>erness). </p> <div class="mw-heading mw-heading3"><h3 id="Postcode_districts_and_numbering">Postcode districts and numbering</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=4" title="Edit section: Postcode districts and numbering"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Each postcode area contains a number of post towns and postcode districts. </p><p>As a general rule, the central part of the town/city the postcode area is named after will have the number 1 e.g. B1 (central Birmingham) – but there a limited number of postcode areas that start 0 or 10, e.g. SL0 and AB10. Croydon uniquely has no CR1 despite having CR0 and CR2-CR10 (an unintended outcome from the initial pilot of three letter postcode areas, where "CRO" for Croydon was transferred to the new format and became CR0, rather than CR1). Large post towns are generally numbered from the centre outward such that outlying parts have higher numbered districts. In most post towns, the postcode "aa1 1AA" was allocated to the crown or principal post office. These are increasingly defunct, as post offices have closed or moved. </p><p>Alternatively, but less commonly, post towns and postcode districts within the area may be numbered according to a different pattern - </p> <ul><li><b>geographical direction</b> (e.g. the Outer Hebrides postcode area HS, where the districts are numbered from north to south)</li> <li><b>alphabetical order</b> of district sub-offices, which is used only in London postcode areas (e.g. E2 is Bethnal Green, E3 is Bow, E4 is Chingford etc.)</li> <li><b>clusters</b> particularly if the postcode area encompasses several major towns or cities (e.g. S postcode area with Sheffield S1-S36, Chesterfield S40-S49, Rotherham S60-S65, Barnsley S70-S75 and Worksop S80-S81)</li> <li><b>earlier districts</b> where preceding postal districts have been adopted or translated into the current system (such as Glasgow's "compass points") - see Earlier Postal Districts.</li></ul> <p>Numbering of postcode districts is normally consecutive, starting from "aa1" (e.g. Halifax which has seven districts numbered consecutively HX1 to HX7), but this is not universal. Non-consecutive numbering can also arise when geographic realities are faced and consecutive numbering would be potentially misleading or unhelpful, or when new districts are created or added/removed from the postcode area. </p> <ul><li><b>geographic reality</b>: Particularly in larger postcode areas, the scale of the districts prevents consecutive numbering e.g. NE postcode area's NE50-PH60 are not allocated due to the substantial distance between NE49 (Haltwhistle) and the next district to be numbered (Morpeth, which was numbered NE61 rather than NE50), recognising the geographic separation of districts in the west (up to NE49) from those to the north (NE61 upwards).</li> <li><b>new postcode districts:</b> New postcode districts are occasionally created, usually due to increased demand for addresses following housing/business development and exhaustion of available postcodes for the existing district. There appear to be no clear rules for numbering new districts. If no sequential numbers are available, then new non-consecutive numbers are allocated. For example, in the <a href="/wiki/CV_postcode_area" title="CV postcode area">CV postcode area</a>, the CV47 district was formed in 1999 from parts of the CV23 and CV33 districts, where the highest numbered district then allocated was CV37.</li> <li><b>transfer of postcode districts</b>: postcodes districts can be transferred for operational reasons e.g. PH49 and PH50 postcode districts which resulted from the transfer and recoding of PA39 and PA40 districts (PH39 and PH40 were already allocated although PH45-PH48 were not allocated). This also occurred with the creation of the HS postcode area, the only new geographic postcode area created since 1973, from the previous PA80 to PA87 districts.</li></ul> <p>Accordingly, many postcode districts are not physically contiguous, despite the inference from their numbering. Likewise, the centrality of a postcode district within a postcode area cannot be reliably inferred from the postcode alone (e.g. SE1 covers a large part of Central London south of the Thames (Waterloo and the borough of Southwark) whereas SE2 covers Abbey Wood at the far eastern end of the Elizabeth Line). See <a href="/wiki/List_of_postcode_areas_in_the_United_Kingdom" title="List of postcode areas in the United Kingdom">postcode area</a>. </p> <div class="mw-heading mw-heading3"><h3 id="Postcode_use">Postcode use</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=5" title="Edit section: Postcode use"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Postcodes have been adopted for a wide range of purposes in addition to aiding the sorting of mail: for calculating insurance premiums, designating destinations in <a href="/wiki/Route_planning_software" class="mw-redirect" title="Route planning software">route planning software</a> and as the lowest level of aggregation in <a href="/wiki/Census" title="Census">census</a> enumeration. The boundaries of each postcode unit and within these the full address data of currently about 29&#160;million addresses (delivery points) are stored, maintained and periodically updated in the <a href="/wiki/Postcode_Address_File" title="Postcode Address File">Postcode Address File</a> database.<sup id="cite_ref-guide_1-2" class="reference"><a href="#cite_note-guide-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> </p><p>Theoretically, deliveries can reach their destination using the house number (or name if the house has no number) and postcode alone; however, this is against Royal Mail guidelines, which request the use of a full address.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">&#91;</span>3<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=6" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Earlier_postal_districts">Earlier postal districts</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=7" title="Edit section: Earlier postal districts"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading4"><h4 id="London">London</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=8" title="Edit section: London"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/London_postal_district" title="London postal district">London postal district</a></div> <p>The London post town covers 40% of <a href="/wiki/Greater_London" title="Greater London">Greater London</a>. On inception (in 1857/8), it was divided into ten postal districts: EC (East Central), WC (West Central), N, NE, E, SE, S, SW, W, and NW. The S and NE sectors were later abolished. In 1917, as a wartime measure to improve efficiency, each postal district was subdivided into sub-districts each identified by a number; the area served directly by the district head office was allocated the number 1; the other numbers were allocated alphabetically by delivery office, e.g. N2 East Finchley delivery office, N3 Finchley delivery office, N4 Finsbury Park delivery office etc. Since then these sub-districts have changed little. </p><p>Some older road signs in Hackney still show the North East (NE) sector/district. </p> <div class="mw-heading mw-heading4"><h4 id="Other_large_cities_and_towns">Other large cities and towns</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=9" title="Edit section: Other large cities and towns"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:BirdbrookRoadSigns.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/83/BirdbrookRoadSigns.jpg/220px-BirdbrookRoadSigns.jpg" decoding="async" width="220" height="104" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/83/BirdbrookRoadSigns.jpg/330px-BirdbrookRoadSigns.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/83/BirdbrookRoadSigns.jpg/440px-BirdbrookRoadSigns.jpg 2x" data-file-width="1200" data-file-height="569" /></a><figcaption> Street name signs on Birdbrook Road, Great Barr, Birmingham, showing old "Birmingham 22" postal district (top) and modern "B44" postcode.</figcaption></figure> <p>Following the successful introduction of postal districts in London, the system was extended to other large towns and cities. Liverpool was divided into Eastern, Northern, Southern and Western districts in 1864/65, and Manchester and Salford into eight numbered districts in 1867/68.<sup id="cite_ref-bpma_4-0" class="reference"><a href="#cite_note-bpma-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup> </p><p>In 1917, <a href="/wiki/Dublin" title="Dublin">Dublin</a>—then still part of the United Kingdom—was divided into <a href="/wiki/List_of_Dublin_postal_districts" title="List of Dublin postal districts">numbered postal districts</a>. These continue in use in a modified form by <a href="/wiki/An_Post" title="An Post">An Post</a>, the postal service of the <a href="/wiki/Republic_of_Ireland" title="Republic of Ireland">Republic of Ireland</a>. In 1923, Glasgow was divided in a similar way to London, with numbered districts preceded by a letter denoting the compass point (C, W, NW, N, E, S, SW, SE).<sup id="cite_ref-bpma_4-1" class="reference"><a href="#cite_note-bpma-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup> </p><p>In January 1932 the Postmaster General approved the designation of some predominantly urban areas into numbered districts.<sup id="cite_ref-bpma_4-2" class="reference"><a href="#cite_note-bpma-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup> In November 1934 the Post Office announced the introduction of numbered districts (short postal codes) in "every provincial town in the United Kingdom large enough to justify it". Pamphlets were issued to each householder and business in ten areas notifying them of the number of the district in which their premises lay. The pamphlets included a map of the districts, and copies were made available at local head post offices. The public were "particularly invited" to include the district number in the address at the head of letters.<sup id="cite_ref-times1934_5-0" class="reference"><a href="#cite_note-times1934-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup> </p><p>A publicity campaign in the following year encouraged the use of the district numbers. The slogan for the campaign was "For speed and certainty always use a postal district number on your letters and notepaper". A poster was fixed to every pillar box in the affected areas bearing the number of the district and appealing for the public's co-operation. Every post office in the numbered district was also to display this information. Printers of Christmas cards and stationery were requested to always include district numbers in addresses, and <a href="/wiki/Election_agent" title="Election agent">election agents</a> for candidates in the upcoming <a href="/wiki/1935_United_Kingdom_general_election" title="1935 United Kingdom general election">general election</a> were asked to ensure they correctly addressed the 100&#160;million items of mail they were expected to post. Businesses were issued with a free booklet containing maps and listings of the correct district number for every street in the ten areas.<sup id="cite_ref-times1935_6-0" class="reference"><a href="#cite_note-times1935-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup> </p><p>The ten areas were:<sup id="cite_ref-times1935_6-1" class="reference"><a href="#cite_note-times1935-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup> </p> <ul><li><a href="/wiki/Birmingham" title="Birmingham">Birmingham</a></li> <li><a href="/wiki/Brighton" title="Brighton">Brighton</a>/<a href="/wiki/Hove" title="Hove">Hove</a></li> <li><a href="/wiki/Bristol" title="Bristol">Bristol</a></li> <li><a href="/wiki/Edinburgh" title="Edinburgh">Edinburgh</a></li> <li><a href="/wiki/Glasgow" title="Glasgow">Glasgow</a></li> <li><a href="/wiki/Leeds" title="Leeds">Leeds</a>/<a href="/wiki/Bradford" title="Bradford">Bradford</a></li> <li><a href="/wiki/Liverpool" title="Liverpool">Liverpool</a></li> <li><a href="/wiki/Manchester" title="Manchester">Manchester</a>/<a href="/wiki/Salford,_Greater_Manchester" class="mw-redirect" title="Salford, Greater Manchester">Salford</a></li> <li><a href="/wiki/Newcastle_upon_Tyne" title="Newcastle upon Tyne">Newcastle upon Tyne</a></li> <li><a href="/wiki/Sheffield" title="Sheffield">Sheffield</a></li></ul> <p>For example, <a href="/wiki/Toxteth" title="Toxteth">Toxteth</a> was <i>Liverpool 8</i>. A single numbering sequence was shared by Manchester and Salford: letters would be addressed to Manchester 1 or Salford 7 (lowest digits, respectively). Some Birmingham codes were sub-divided with a letter, such as <i>Great Barr, Birmingham 22</i> or <i>Birmingham 22a</i>,<sup id="cite_ref-Will_7-0" class="reference"><a href="#cite_note-Will-7"><span class="cite-bracket">&#91;</span>7<span class="cite-bracket">&#93;</span></a></sup> as can still be seen on many older street-name signs. </p> <div class="mw-heading mw-heading3"><h3 id="Modern_postcode_system">Modern postcode system</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=10" title="Edit section: Modern postcode system"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The Post Office experimented with electromechanical sorting machines in the late 1950s.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">&#91;</span>8<span class="cite-bracket">&#93;</span></a></sup> These devices presented an envelope to an operator, who would press a button indicating which bin to sort the letter into. Postcodes were suggested to increase the efficiency of this process by removing the need for the sorter to remember the correct sorting for as many places.<sup id="cite_ref-new_scientist_9-0" class="reference"><a href="#cite_note-new_scientist-9"><span class="cite-bracket">&#91;</span>9<span class="cite-bracket">&#93;</span></a></sup> In January 1959 the Post Office analysed the results of a survey on public attitudes towards the use of postal codes, choosing a town in which to experiment with codes. The envisaged format was a six-character alphanumeric code with three letters designating the geographical area and three numbers to identify the individual address.<sup id="cite_ref-times_150189_10-0" class="reference"><a href="#cite_note-times_150189-10"><span class="cite-bracket">&#91;</span>10<span class="cite-bracket">&#93;</span></a></sup> On 28 July <a href="/wiki/Ernest_Marples" title="Ernest Marples">Ernest Marples</a>, the <a href="/wiki/Postmaster_General_of_the_United_Kingdom" title="Postmaster General of the United Kingdom">Postmaster General</a>, announced that <a href="/wiki/Norwich" title="Norwich">Norwich</a> had been selected, and that each of the 150,000 private and business addresses would receive a code by October. Norwich had been selected as it already had eight automatic mail sorting machines in use.<sup id="cite_ref-times_290659_11-0" class="reference"><a href="#cite_note-times_290659-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> The original Norwich format consisted of "NOR", followed by a space, then a two-digit number (which, unlike the current format, could include a leading zero), and finally a single letter (instead of the two final letters in the current format).<sup id="cite_ref-norexamples_12-0" class="reference"><a href="#cite_note-norexamples-12"><span class="cite-bracket">&#91;</span>12<span class="cite-bracket">&#93;</span></a></sup> </p><p>In October 1965, <a href="/wiki/Tony_Benn" title="Tony Benn">Tony Benn</a> as Postmaster General<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">&#91;</span>13<span class="cite-bracket">&#93;</span></a></sup> announced that postal coding was to be extended to the rest of the country in the next few years.<sup id="cite_ref-times_051065_14-0" class="reference"><a href="#cite_note-times_051065-14"><span class="cite-bracket">&#91;</span>14<span class="cite-bracket">&#93;</span></a></sup> </p><p>On 1 May 1967 postcodes were introduced in <a href="/wiki/Croydon" title="Croydon">Croydon</a>. The many postcodes for central Croydon began with "CRO", while those of the surrounding <a href="/wiki/Post_town" title="Post town">post towns</a> with CR2, CR3 and CR4. The uniform system of a set of three final characters after the space (such as 0AA, known as the inward code) was adopted. This was to be the beginning of a ten-year plan, costing an estimated £24&#160;million. Within two years it was expected that full coding would be used in <a href="/wiki/Aberdeen" title="Aberdeen">Aberdeen</a>, <a href="/wiki/Belfast" title="Belfast">Belfast</a>, <a href="/wiki/Brighton" title="Brighton">Brighton</a>, <a href="/wiki/Bristol" title="Bristol">Bristol</a>, <a href="/wiki/Bromley" title="Bromley">Bromley</a>, <a href="/wiki/Cardiff" title="Cardiff">Cardiff</a>, <a href="/wiki/Coventry" title="Coventry">Coventry</a>, <a href="/wiki/Manchester" title="Manchester">Manchester</a>, <a href="/wiki/Newcastle_upon_Tyne" title="Newcastle upon Tyne">Newcastle upon Tyne</a>, <a href="/wiki/Newport,_Wales" title="Newport, Wales">Newport</a>, <a href="/wiki/Reading,_Berkshire" title="Reading, Berkshire">Reading</a>, <a href="/wiki/Sheffield" title="Sheffield">Sheffield</a>, <a href="/wiki/Southampton" title="Southampton">Southampton</a> and the <a href="/wiki/W_postcode_area" title="W postcode area">Western district</a> of London.<sup id="cite_ref-times_121066_15-0" class="reference"><a href="#cite_note-times_121066-15"><span class="cite-bracket">&#91;</span>15<span class="cite-bracket">&#93;</span></a></sup> By 1967, codes had been introduced to Aberdeen, Southampton, Brighton and <a href="/wiki/Derby" title="Derby">Derby</a>.<sup id="cite_ref-times_040767_16-0" class="reference"><a href="#cite_note-times_040767-16"><span class="cite-bracket">&#91;</span>16<span class="cite-bracket">&#93;</span></a></sup> In 1970, codes were introduced to the London Western and <a href="/wiki/NW_postcode_area" title="NW postcode area">North Western</a> postal districts.<sup id="cite_ref-times_150870_17-0" class="reference"><a href="#cite_note-times_150870-17"><span class="cite-bracket">&#91;</span>17<span class="cite-bracket">&#93;</span></a></sup> In December 1970, much Christmas mail was postmarked with the message "Remember to use the Postal Code" although codes were used to sort mail in only a handful of <a href="/wiki/Sorting_office" title="Sorting office">sorting offices</a>.<sup id="cite_ref-times_180171_18-0" class="reference"><a href="#cite_note-times_180171-18"><span class="cite-bracket">&#91;</span>18<span class="cite-bracket">&#93;</span></a></sup> </p><p>During 1971, occupants of addresses began to receive notification of their postcode. Asked in the House of Commons about the completion of the coding exercise, the <a href="/wiki/Minister_of_State" title="Minister of State">Minister of State</a> for Posts and Telecommunications (whose role superseded that of Postmaster General in 1969), <a href="/wiki/John_Eden,_Baron_Eden_of_Winton" title="John Eden, Baron Eden of Winton">Sir John Eden</a>, stated that it was expected to be completed during 1972.<sup id="cite_ref-times_200472_19-0" class="reference"><a href="#cite_note-times_200472-19"><span class="cite-bracket">&#91;</span>19<span class="cite-bracket">&#93;</span></a></sup> The scheme was finalised in 1974 when Norwich was completely re-coded but the scheme tested in Croydon was sufficiently close to the final design for it to be retained, with CRO standardised as CR0 (district zero) thus removing the need to create a CR1 district.<sup id="cite_ref-bpma_4-3" class="reference"><a href="#cite_note-bpma-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup> </p><p>A quirk remained: the central Newport (Gwent) area was allocated NPT at a similar time to Croydon becoming CRO, and surrounding areas were (as today) allocated NP1–NP8. NPT lasted until the end of 1984 when it was recoded NP9.<sup id="cite_ref-nptgazette_20-0" class="reference"><a href="#cite_note-nptgazette-20"><span class="cite-bracket">&#91;</span>20<span class="cite-bracket">&#93;</span></a></sup> </p><p><a href="/wiki/Girobank" title="Girobank">Girobank</a>'s GIR 0AA was the last domestic postcode with a fully alphabetical outward code. That code no longer exists in the Royal Mail's PAF system, but was taken over by the bank's current owners, <a href="/wiki/Santander_UK" title="Santander UK">Santander UK</a>.<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">&#91;</span>21<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Adaptation_of_earlier_systems_into_national_system">Adaptation of earlier systems into national system</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=11" title="Edit section: Adaptation of earlier systems into national system"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>When the national postcode system was introduced, many existing postal districts were incorporated into it, so that postcodes in Toxteth (Liverpool 8) start with L8. The districts in both Manchester and Salford gained M postcodes, so Salford 7 became M7 and so on (and similarly in Brighton and Hove, both using the prefix BN). The old coding lives on in a small number of street signs with (for example) "Salford 7" at the bottom. In other cases, the district numbers were replaced with unrelated numbers. In Glasgow many of its G-prefixed numbers are not used following the transposition of the earlier compass point distrcits to "G" districts: C1 became G1, W1 became G11, N1 became G21, E1 became G31, S1 became G41, SW1 became G51, and so on. In London (as postally defined), 1917-created postal districts are mapped unchanged today despite Greater London, created in April 1965, covering a much larger administrative area. The London post town covers 40% of Greater London and the remaining 60% of Greater London's area has postcodes referring to 13 other post towns. Additionally, there were too few postcodes to adequately cover districts in central London (particularly in the WC and EC areas), so these were subdivided with a letter suffix rather than being split into new numbered districts so as to retain the familiar codes. </p> <div class="mw-heading mw-heading4"><h4 id="GB_postcodes_available_as_OpenData">GB postcodes available as OpenData</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=12" title="Edit section: GB postcodes available as OpenData"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Prior to 1 April 2010, the Royal Mail licensed use of the postcode database for a charge of about £4,000 per year.<sup id="cite_ref-planning_22-0" class="reference"><a href="#cite_note-planning-22"><span class="cite-bracket">&#91;</span>22<span class="cite-bracket">&#93;</span></a></sup> Following a campaign and a government consultation in 2009,<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">&#91;</span>23<span class="cite-bracket">&#93;</span></a></sup> the Ordnance Survey released Code-Point Open, detailing each current postcode in Great Britain together with a geo-code for re-use free of charge under an attribution-only licence (<a href="/wiki/Open_Government_Licence" title="Open Government Licence">Open Government Licence</a> as part of <a href="/wiki/Ordnance_Survey#OS_OpenData" title="Ordnance Survey">OS OpenData</a>). </p> <div class="mw-heading mw-heading4"><h4 id="Postcodes_linked_to_a_variety_of_UK_geographies">Postcodes linked to a variety of UK geographies</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=13" title="Edit section: Postcodes linked to a variety of UK geographies"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <a href="/wiki/Office_for_National_Statistics" title="Office for National Statistics">Office for National Statistics</a> (ONS Geography) maintains and publishes a series of freely available, downloadable postcode products that link all current and terminated UK postcodes to a range of administrative, health, statistical and other geographies using the Code-Point Open grid reference. </p> <div class="mw-heading mw-heading2"><h2 id="Formatting">Formatting</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=14" title="Edit section: Formatting"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Overview_2">Overview</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=15" title="Edit section: Overview"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The postcodes are alphanumeric, and are (possibly uniquely) variable in length: ranging from six to eight characters (including a space). Each postcode is divided into two parts separated by a single space: the <i>outward code</i> and the <i>inward code</i> respectively. The <i>outward code</i> includes the <i>postcode area</i> and the <i>postcode district</i>, respectively. The <i>inward code</i> includes the <i>postcode sector</i> and the <i>postcode unit</i> respectively. Examples of postcodes are "SW1W 0NY", "PO16 7GZ", "GU16 7HF", and "L1 8JQ".<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">&#91;</span>24<span class="cite-bracket">&#93;</span></a></sup> </p> <table class="wikitable" style="text-align: center; margin: 0 auto;"> <tbody><tr> <th style="background:#87cefa; color: black;" colspan="4">POSTCODE </th></tr> <tr style="background:#ff4500; color: white;"> <td colspan="2">Outward code </td> <td colspan="2">Inward code </td></tr> <tr style="background:#ff4500; color: white;"> <td>Area</td> <td>District</td> <td>Sector</td> <td>Unit </td></tr> <tr style="background:#0000cd; color: white;"> <td>SW</td> <td>1W</td> <td>0</td> <td>NY </td></tr></tbody></table> <div class="mw-heading mw-heading3"><h3 id="Outward_code">Outward code</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=16" title="Edit section: Outward code"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The outward code is the part of the postcode before the single space in the middle. It is between two and four characters long. Examples of outward codes are "L1", "W1A", "RH1", "RH10" or "SE1P". A few outward codes are non-geographic, not divulging where mail is to be sent. </p> <div class="mw-heading mw-heading4"><h4 id="Postcode_area">Postcode area</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=17" title="Edit section: Postcode area"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <a href="/wiki/List_of_postcode_areas_in_the_United_Kingdom" title="List of postcode areas in the United Kingdom">postcode area</a> is part of the outward code. The postcode area is either one or two characters long and is alphabetical, with there being 121 such areas. Examples of postcode areas are "L" for <a href="/wiki/Liverpool" title="Liverpool">Liverpool</a>, "RH" for <a href="/wiki/RH_postcode_area" title="RH postcode area">Redhill</a> and "EH" for <a href="/wiki/Edinburgh" title="Edinburgh">Edinburgh</a>. A postal area may cover a wide area, for example "RH" covers various settlements in eastern Surrey and north eastern West Sussex, and "BT" (<a href="/wiki/Belfast" title="Belfast">Belfast</a>) covers the whole of <a href="/wiki/Northern_Ireland" title="Northern Ireland">Northern Ireland</a>. </p> <div class="mw-heading mw-heading4"><h4 id="Postcode_district">Postcode district</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=18" title="Edit section: Postcode district"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <a href="/wiki/List_of_postcode_districts_in_the_United_Kingdom" title="List of postcode districts in the United Kingdom">postcode district</a> is one digit, two digits or a digit followed by a letter. </p> <div class="mw-heading mw-heading3"><h3 id="Inward_code">Inward code</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=19" title="Edit section: Inward code"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The inward code is the part of the postcode after the single space in the middle. It is three characters long. The inward code assists in the delivery of post within a postal district. Examples of inward codes are "0NY", "7GZ", "7HF", or "8JQ".<sup id="cite_ref-Postcodes_&amp;_Addresses_Explained_25-0" class="reference"><a href="#cite_note-Postcodes_&amp;_Addresses_Explained-25"><span class="cite-bracket">&#91;</span>25<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Postcode_sector">Postcode sector</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=20" title="Edit section: Postcode sector"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The postcode sector is made up of a single digit (the first character of the inward code). Most postcode areas do not use all of the sectors 0-9 in order to allow for the possibility of more sectors being added in the face of new development. Rather, in the initial allocation of postcodes, neighbouring postcode districts were often assigned to contain the ten sectors between them. For example, across the three postcode districts <a href="/wiki/BS_postcode_area" title="BS postcode area">BS6-8</a> (which are next to each other in north west <a href="/wiki/Bristol" title="Bristol">Bristol</a>), sectors 1-4 were assigned to BS8, sectors 5-7 were assigned to BS6, and sectors 8-9 and 0 were assigned to BS7 (more recent changes have resulted in all three of those areas now having a sector 9).<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">&#91;</span>26<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Postcode_unit">Postcode unit</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=21" title="Edit section: Postcode unit"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The postcode unit is two characters added to the end of the postcode sector. A postcode unit generally represents a street, part of a street, a single address, a group of properties, a single property, a sub-section of the property, an individual organisation or (for instance <a href="/wiki/Driver_and_Vehicle_Licensing_Agency" title="Driver and Vehicle Licensing Agency">Driver and Vehicle Licensing Agency</a>) a subsection of the organisation. The level of discrimination is often based on the amount of mail received by the premises or business. </p> <div class="mw-heading mw-heading3"><h3 id="Validation">Validation</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=22" title="Edit section: Validation"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The format is as follows, where <b>A</b> signifies a letter and <b>9</b> a digit: </p> <table class="wikitable"> <tbody><tr> <th>Format</th> <th>Coverage</th> <th>Example </th></tr> <tr> <th style="text-align:left; white-space:nowrap;">AA9A 9AA </th> <td>WC postcode area; EC1–EC4, NW1W, SE1P, SW1 </td> <td style="white-space:nowrap;">EC1A 1BB </td></tr> <tr> <th style="text-align:left; white-space:nowrap;">A9A 9AA </th> <td>E1, N1, W1 </td> <td style="white-space:nowrap;">W1A 0AX </td></tr> <tr> <th style="text-align:left; white-space:nowrap;">A9 9AA </th> <td rowspan="2">B, E, G, L, M, N, S, W </td> <td style="white-space:nowrap;">M1 1AE </td></tr> <tr> <th style="text-align:left; white-space:nowrap;">A99 9AA </th> <td style="white-space:nowrap;">B33 8TH </td></tr> <tr> <th style="text-align:left; white-space:nowrap;">AA9 9AA </th> <td rowspan="2">All other postcodes </td> <td style="white-space:nowrap;">CR2 6XH </td></tr> <tr> <th style="text-align:left; white-space:nowrap;">AA99 9AA </th> <td style="white-space:nowrap;">DN55 1PT </td></tr></tbody></table> <p>Notes: </p> <ul><li>As all formats end with 9AA, the first part of a postcode can easily be extracted by ignoring the last three characters.</li> <li>Areas with only single-digit districts: BL, BR, FY, HA, HD, HG, HR, HS, HX, JE, LD, SM, SR, WC, WN, ZE (although WC is always subdivided by a further letter, e.g. WC1A)</li> <li>Areas with only double-digit districts: AB, LL, SO (for AB this arose from decoding of the original five districts AB1-AB5 by adding a second digit, to enable additional postcodes to become available, thus AB1 was divided into AB10-AB16).</li> <li>Areas with a district '0' (zero): BL, BS, CM, CR, FY, HA, PR, SL, SS (BS is the only area to have both a district 0 and a district 10)</li> <li>The following central London single-digit districts have been further divided by inserting a letter after the digit and before the space: EC1–EC4 (but not EC50), SW1, W1, WC1, WC2 and parts of E1 (E1W), N1 (N1C and N1P), NW1 (NW1W) and SE1 (SE1P).</li> <li>The letters <i>Q</i>, <i>V</i> and <i>X</i> are not used in the first position.</li> <li>The letters <i>I</i>, <i>J</i> and <i>Z</i> are not used in the second position.</li> <li>The only letters to appear in the third position are <i>A</i>, <i>B, C, D, E, F, G, H, J, K, P, S, T, U</i> and <i>W</i> when the structure starts with A9A.</li> <li>The only letters to appear in the fourth position are <i>A, B, E, H, M, N, P, R, V, W, X</i> and <i>Y</i> when the structure starts with AA9A.</li> <li>The final two letters do not use <i>C, I, K, M, O</i> or <i>V</i>, so as not to resemble digits or each other when hand-written.</li> <li>Postcode districts are one of ten digits: 0 to 9, with 0 only used once 9 has been used in a post town, save for Croydon (see above).</li> <li>Postcode sectors can also be one of ten digits: 0 to 9, though in some postcode areas the 0 is the beginning of the sequence (for example in LE), while in other areas it is the end of the sequence (ie. 10, as in CV).</li></ul> <p>A postcode can be validated against a table of all 1.7&#160;million postcodes in <a rel="nofollow" class="external text" href="https://www.ordnancesurvey.co.uk/products/code-point-open">Code-Point Open</a>. The full delivery address including postcode can be validated against the <a href="/wiki/Royal_Mail" title="Royal Mail">Royal Mail</a> <a href="/wiki/Postcode_Address_File" title="Postcode Address File">Postcode Address File</a> (PAF), which lists 29&#160;million valid delivery addresses,<sup id="cite_ref-bbc_50_27-0" class="reference"><a href="#cite_note-bbc_50-27"><span class="cite-bracket">&#91;</span>27<span class="cite-bracket">&#93;</span></a></sup> constituting most (but not all) addresses in the UK.<sup id="cite_ref-28" class="reference"><a href="#cite_note-28"><span class="cite-bracket">&#91;</span>28<span class="cite-bracket">&#93;</span></a></sup> A <a href="/wiki/Regular_expression" title="Regular expression">regular expression</a> for validating UK postcodes is specified in the <a href="/wiki/British_Standards" title="British Standards">British Standards</a> document BS 7666.<sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">&#91;</span>29<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Post_towns">Post towns</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=23" title="Edit section: Post towns"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>All or part of one or more postcode districts are grouped into <a href="/wiki/Post_town" title="Post town">post towns</a>.<sup id="cite_ref-Guide_30-0" class="reference"><a href="#cite_note-Guide-30"><span class="cite-bracket">&#91;</span>30<span class="cite-bracket">&#93;</span></a></sup> Larger post towns may use more than one postcode district, for example Crawley uses RH10 and RH11. In a minority of cases, a single number can cover two or more post towns – for example, the WN8 district includes Wigan and Skelmersdale post towns; and the GL17 district contains five post towns. </p> <div class="mw-heading mw-heading2"><h2 id="Special_cases">Special cases</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=24" title="Edit section: Special cases"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><span class="anchor" id="Special_Cases"></span> </p> <div class="mw-heading mw-heading3"><h3 id="Crown_dependencies">Crown dependencies</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=25" title="Edit section: Crown dependencies"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <a href="/wiki/Channel_Islands" title="Channel Islands">Channel Islands</a> and the <a href="/wiki/Isle_of_Man" title="Isle of Man">Isle of Man</a> established their own postal administrations separate from the UK in 1969. Despite this, they adopted the UK-format postcodes in 1993–94: <a href="/wiki/Bailiwick_of_Guernsey" title="Bailiwick of Guernsey">Guernsey</a> using <a href="/wiki/GY_postcode_area" title="GY postcode area">GY</a>, the Isle of Man using <a href="/wiki/IM_postcode_area" title="IM postcode area">IM</a>, and <a href="/wiki/Jersey" title="Jersey">Jersey</a> using <a href="/wiki/JE_postcode_area" title="JE postcode area">JE</a>.<sup id="cite_ref-newareas_31-0" class="reference"><a href="#cite_note-newareas-31"><span class="cite-bracket">&#91;</span>31<span class="cite-bracket">&#93;</span></a></sup> </p><p>The independent jurisdiction of <a href="/wiki/Sark" title="Sark">Sark</a> was assigned a unique postcode district GY10 in 2011 to differentiate it from <a href="/wiki/Alderney" title="Alderney">Alderney</a>. The CEO of Guernsey Post, Boley Smillie, said "this has been a long time coming" and "... Sark should have had its own identity back then [when postcodes were adopted in 1993]".<sup id="cite_ref-32" class="reference"><a href="#cite_note-32"><span class="cite-bracket">&#91;</span>32<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="British_Overseas_Territories">British Overseas Territories</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=26" title="Edit section: British Overseas Territories"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-More_citations_needed_section plainlinks metadata ambox ambox-content ambox-Refimprove" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This section <b>needs additional citations for <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">verification</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/Postcodes_in_the_United_Kingdom" title="Special:EditPage/Postcodes in the United Kingdom">improve this article</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a>&#32;in this section. Unsourced material may be challenged and removed.</span> <span class="date-container"><i>(<span class="date">January 2021</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <p>Some of the <a href="/wiki/British_Overseas_Territories" title="British Overseas Territories">British Overseas Territories</a> have postcodes that broadly follow the format of the UK postcode system or, in Gibraltar's case, adopts the UK format: </p> <table class="wikitable"> <tbody><tr> <th>Postcode</th> <th>Location </th></tr> <tr> <td>ASCN 1ZZ<sup id="cite_ref-MercoPress_33-0" class="reference"><a href="#cite_note-MercoPress-33"><span class="cite-bracket">&#91;</span>33<span class="cite-bracket">&#93;</span></a></sup></td> <td><a href="/wiki/Ascension_Island" title="Ascension Island">Ascension Island</a> </td></tr> <tr> <td>BBND 1ZZ<sup id="cite_ref-UPU_34-0" class="reference"><a href="#cite_note-UPU-34"><span class="cite-bracket">&#91;</span>34<span class="cite-bracket">&#93;</span></a></sup></td> <td><a href="/wiki/British_Indian_Ocean_Territory" title="British Indian Ocean Territory">British Indian Ocean Territory</a> </td></tr> <tr> <td>BIQQ 1ZZ<sup id="cite_ref-WalesOnline_35-0" class="reference"><a href="#cite_note-WalesOnline-35"><span class="cite-bracket">&#91;</span>35<span class="cite-bracket">&#93;</span></a></sup></td> <td><a href="/wiki/British_Antarctic_Territory" title="British Antarctic Territory">British Antarctic Territory</a> </td></tr> <tr> <td>FIQQ 1ZZ<sup id="cite_ref-WalesOnline_35-1" class="reference"><a href="#cite_note-WalesOnline-35"><span class="cite-bracket">&#91;</span>35<span class="cite-bracket">&#93;</span></a></sup></td> <td><a href="/wiki/Falkland_Islands" title="Falkland Islands">Falkland Islands</a> </td></tr> <tr> <td>GX11 1AA<sup id="cite_ref-gx111aa_36-0" class="reference"><a href="#cite_note-gx111aa-36"><span class="cite-bracket">&#91;</span>36<span class="cite-bracket">&#93;</span></a></sup></td> <td><a href="/wiki/Gibraltar" title="Gibraltar">Gibraltar</a> </td></tr> <tr> <td>PCRN 1ZZ<sup id="cite_ref-UPU_34-1" class="reference"><a href="#cite_note-UPU-34"><span class="cite-bracket">&#91;</span>34<span class="cite-bracket">&#93;</span></a></sup></td> <td><a href="/wiki/Pitcairn_Islands" title="Pitcairn Islands">Pitcairn Islands</a> </td></tr> <tr> <td>SIQQ 1ZZ<sup id="cite_ref-WalesOnline_35-2" class="reference"><a href="#cite_note-WalesOnline-35"><span class="cite-bracket">&#91;</span>35<span class="cite-bracket">&#93;</span></a></sup></td> <td><a href="/wiki/South_Georgia_and_the_South_Sandwich_Islands" title="South Georgia and the South Sandwich Islands">South Georgia and the South Sandwich Islands</a> </td></tr> <tr> <td>STHL 1ZZ<sup id="cite_ref-MercoPress_33-1" class="reference"><a href="#cite_note-MercoPress-33"><span class="cite-bracket">&#91;</span>33<span class="cite-bracket">&#93;</span></a></sup></td> <td><a href="/wiki/Saint_Helena" title="Saint Helena">Saint Helena</a> </td></tr> <tr> <td>TDCU 1ZZ<sup id="cite_ref-bbc_tdcu_37-0" class="reference"><a href="#cite_note-bbc_tdcu-37"><span class="cite-bracket">&#91;</span>37<span class="cite-bracket">&#93;</span></a></sup></td> <td><a href="/wiki/Tristan_da_Cunha" title="Tristan da Cunha">Tristan da Cunha</a> </td></tr> <tr> <td>TKCA 1ZZ<sup id="cite_ref-upu_38-0" class="reference"><a href="#cite_note-upu-38"><span class="cite-bracket">&#91;</span>38<span class="cite-bracket">&#93;</span></a></sup></td> <td><a href="/wiki/Turks_and_Caicos_Islands" title="Turks and Caicos Islands">Turks and Caicos Islands</a> </td></tr></tbody></table> <p>These were introduced because mail was often sent to the wrong place, e.g., to St Helena instead of <a href="/wiki/St_Helens,_Merseyside" title="St Helens, Merseyside">St Helens, Merseyside</a><sup id="cite_ref-39" class="reference"><a href="#cite_note-39"><span class="cite-bracket">&#91;</span>39<span class="cite-bracket">&#93;</span></a></sup> or <a href="/wiki/St_Helens,_Isle_of_Wight" title="St Helens, Isle of Wight">St Helens, Isle of Wight</a>.<sup id="cite_ref-40" class="reference"><a href="#cite_note-40"><span class="cite-bracket">&#91;</span>40<span class="cite-bracket">&#93;</span></a></sup> and to <a href="/wiki/Edinburgh" title="Edinburgh">Edinburgh</a> instead of Edinburgh, <a href="/wiki/Tristan_da_Cunha" title="Tristan da Cunha">Tristan da Cunha</a>, and many online companies would not accept addresses without a postcode.<sup id="cite_ref-bbc_tdcu_37-1" class="reference"><a href="#cite_note-bbc_tdcu-37"><span class="cite-bracket">&#91;</span>37<span class="cite-bracket">&#93;</span></a></sup> Mail from the UK continues to be treated as international, not inland, and sufficient postage must be used.<sup id="cite_ref-41" class="reference"><a href="#cite_note-41"><span class="cite-bracket">&#91;</span>41<span class="cite-bracket">&#93;</span></a></sup> </p><p><a href="/wiki/Bermuda" title="Bermuda">Bermuda</a> has developed its <a href="/wiki/Postal_codes_in_Bermuda" title="Postal codes in Bermuda">own postcode system</a>, with unique postcodes for street and PO Box addresses,<sup id="cite_ref-bpo_42-0" class="reference"><a href="#cite_note-bpo-42"><span class="cite-bracket">&#91;</span>42<span class="cite-bracket">&#93;</span></a></sup> as have the <a href="/wiki/Cayman_Islands" title="Cayman Islands">Cayman Islands</a>,<sup id="cite_ref-43" class="reference"><a href="#cite_note-43"><span class="cite-bracket">&#91;</span>43<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/Montserrat" title="Montserrat">Montserrat</a> and the <a href="/wiki/British_Virgin_Islands" title="British Virgin Islands">British Virgin Islands</a>.<sup id="cite_ref-44" class="reference"><a href="#cite_note-44"><span class="cite-bracket">&#91;</span>44<span class="cite-bracket">&#93;</span></a></sup> Montserrat recently introduced postal codes,<sup id="cite_ref-45" class="reference"><a href="#cite_note-45"><span class="cite-bracket">&#91;</span>45<span class="cite-bracket">&#93;</span></a></sup> and a system has been under consideration in <a href="/wiki/Gibraltar" title="Gibraltar">Gibraltar</a><sup id="cite_ref-gibralta_46-0" class="reference"><a href="#cite_note-gibralta-46"><span class="cite-bracket">&#91;</span>46<span class="cite-bracket">&#93;</span></a></sup> with the code GX11 1AA being introduced as the generic postcode for the territory in the interim.<sup id="cite_ref-gx111aa_36-1" class="reference"><a href="#cite_note-gx111aa-36"><span class="cite-bracket">&#91;</span>36<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-47" class="reference"><a href="#cite_note-47"><span class="cite-bracket">&#91;</span>47<span class="cite-bracket">&#93;</span></a></sup> </p><p>The separate postal code systems for those territories are shown below: </p> <table class="wikitable"> <tbody><tr> <th>Postcode</th> <th>Location </th></tr> <tr> <td>AI-2640</td> <td><a href="/wiki/Anguilla" title="Anguilla">Anguilla</a><sup id="cite_ref-anguillian_48-0" class="reference"><a href="#cite_note-anguillian-48"><span class="cite-bracket">&#91;</span>48<span class="cite-bracket">&#93;</span></a></sup> </td></tr> <tr> <td>KY<i>n-nnnn</i> (<a rel="nofollow" class="external text" href="http://www.caymanpost.gov.ky/portal/page/portal/poshome/posnpimages/POSTCODE%20FINDER%20COLOUR.pdf">List</a>)</td> <td><a href="/wiki/Cayman_Islands" title="Cayman Islands">Cayman Islands</a> </td></tr> <tr> <td>MSR-<i>nnnn</i> (<a rel="nofollow" class="external text" href="http://www.gov.ms/wp-content/uploads/2014/02/Postal-Code-Guide-pamphlet.pdf">List</a>)</td> <td><a href="/wiki/Montserrat" title="Montserrat">Montserrat</a> </td></tr> <tr> <td>VG-<i>nnnn</i> (<a rel="nofollow" class="external text" href="http://www.bvi.gov.vg/content/what-are-postcodes-addresses-british-virgin-islands">List</a>)</td> <td><a href="/wiki/British_Virgin_Islands" title="British Virgin Islands">British Virgin Islands</a> </td></tr> <tr> <td><i>aa nn</i> or <i>aa aa</i> <a rel="nofollow" class="external text" href="https://www.bermudayp.com/article/view/1963/2018/5/bermuda-postal-codes">List</a></td> <td><a href="/wiki/Bermuda" title="Bermuda">Bermuda</a> </td></tr></tbody></table> <p>The British Sovereign Base Areas of <a href="/wiki/Akrotiri_and_Dhekelia" title="Akrotiri and Dhekelia">Akrotiri and Dhekelia</a> in Cyprus use <a href="/wiki/Postal_codes_in_Cyprus" title="Postal codes in Cyprus">Cypriot postal codes</a> for civilian use. The British military use BFPO addresses. </p> <div class="mw-heading mw-heading3"><h3 id="British_Forces_Post_Office_(BFPO)"><span id="British_Forces_Post_Office_.28BFPO.29"></span><span class="anchor" id="British_Forces"></span> British Forces Post Office (BFPO)</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=27" title="Edit section: British Forces Post Office (BFPO)"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <a href="/wiki/British_Forces_Post_Office" title="British Forces Post Office">British Forces Post Office</a> (BFPO) provides a postal service to HM Forces separate from that provided by Royal Mail in the United Kingdom, with BFPO addresses used for the delivery of mail in the UK and around the world. BFPO codes such as "BFPO 801" serve the same function as postal codes for civilian addresses, with the last line of the address consisting of "BFPO" followed a space and a number of 1 to 4 digits. </p><p>For consistency with the format of other UK addresses, in 2012 BFPO and Royal Mail jointly introduced an optional alternative postcode format for BFPO addresses, using the new non-geographic postcode area "BF" and the notional <a href="/wiki/Post_town" title="Post town">post town</a> "BFPO". Each BFPO number is assigned to a postcode in the standard UK format, beginning "BF1". Inward codes are assigned: 0 – Germany, 1 – UK, 2 – Rest of Europe, 3 – Rest of World, 4 – Ships and Naval Parties, 5 – Rest of World, Operations and Exercises, 6 – Rest of World, Operations and Exercises.<sup id="cite_ref-santa_49-0" class="reference"><a href="#cite_note-santa-49"><span class="cite-bracket">&#91;</span>49<span class="cite-bracket">&#93;</span></a></sup> The database was released commercially in March 2012 as part of the Royal Mail <a href="/wiki/Postcode_Address_File" title="Postcode Address File">Postal Address File</a> (PAF).<sup id="cite_ref-50" class="reference"><a href="#cite_note-50"><span class="cite-bracket">&#91;</span>50<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-51" class="reference"><a href="#cite_note-51"><span class="cite-bracket">&#91;</span>51<span class="cite-bracket">&#93;</span></a></sup> A postcode is not required if the traditional "BFPO nnnn" format is used. </p> <div class="mw-heading mw-heading3"><h3 id="Non-geographic_codes">Non-geographic codes</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=28" title="Edit section: Non-geographic codes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Most postcodes apply to a geographic area but some are used only for routing and cannot be used for navigation or estimating distances.<sup id="cite_ref-non_geo_52-0" class="reference"><a href="#cite_note-non_geo-52"><span class="cite-bracket">&#91;</span>52<span class="cite-bracket">&#93;</span></a></sup> They are often used for various purposes - "bulk mail" or large volumes, centralised scanning of inward mail, competitions, parcel returns, <a href="/wiki/Direct_marketing" title="Direct marketing">direct marketing</a> and <a href="/wiki/PO_box" class="mw-redirect" title="PO box">PO boxes</a>. They are also referred to as "business service indicator addresses". They cover - </p> <ul><li>Post boxes: e.g. in the Brighton BN postcode area, BN50-BN52 are allocated to PO Boxes in Brighton, Rottingdean and Hove).</li> <li>Post boxes in London: London postcode districts ending in -P, such as SE1P, are usually allocated to PO Boxes (though other letters are also used).</li> <li>Postcode district: many geographic postcode areas also postcode districts that are "non-geographic" and are allocated to specific recipient e.g. WV98 and WV99 for the Department of Work and Pensions correspondence.<a rel="nofollow" class="external autonumber" href="https://www.whatdotheyknow.com/request/non_geographic_bx_postcodesbsi_a">[1]</a>, which are government departments or commercial businesses. These are referred to as Large User (LU) in the Postcode Address File.</li> <li>Postcode area BX: BX is entirely non-geographic, with all its codes independent of the location of the recipient.</li> <li>Postcode area XX: the XX postcode area is non-geographic and is allocated for parcel returns of large volume online retailers (and for medical sample testing during the COVID pandemic).</li></ul> <p>There appear to be no binding rules publicly available for numbering of such districts, but many non-geographic districts are allocated a number higher than the currently existing postcode districts and often in the range 90-99 (several government departments use the aa98 district). This is possible as virtually all postcode areas have not allocated districts in that number range (BT92, BT93, BT94 and M90 seem to be the only geographic districts in this range) . However, there are many non-geographic districts numbered outside this range (e.g. American Express has the postcode district BN88; in Glasgow G58 is allocated to National Savings, as part of a mnemonic postcode G58 1SB, though it is located in G43 postcode district; and also in Glasgow, G70 is allocated to HMRC which is physically located in G67). </p><p>Some postcodes in the "non-geographic" range are in fact geographic, but specific to the institution or entity and not part of the surrounding numbering sequence (and thus quite different from the neighbouring properties) - for example, EH99 1SP can be used with GPS mapping to locate and navigate to the Scottish Parliament, which is directly opposite the Palace of Holyrood House, EH8 8DX, and across the road from 7/4 Canongate, EH8 8BX. </p><p>The letters HQ for the last two letters may also mean it is most likely a non-graphical postcode or that Royal Mail holds the mail where a redirection, bulk mail delivery or open and scan to email service is available. <a href="/wiki/Girobank" title="Girobank">Girobank</a>'s headquarters in <a href="/wiki/Bootle" title="Bootle">Bootle</a> used the non-geographic postcode GIR 0AA. There is also a special postcode for <a href="/wiki/Letters_to_Santa" class="mw-redirect" title="Letters to Santa">letters to Santa/Father Christmas</a>, XM4 5HQ.<sup id="cite_ref-santa_49-1" class="reference"><a href="#cite_note-santa-49"><span class="cite-bracket">&#91;</span>49<span class="cite-bracket">&#93;</span></a></sup> </p><p>Many non-geographic postcodes do not appear on Royal Mail's own online postcode finder tool or their Click and Drop online postage printing tool, which can add to confusion when responding to organisations that use such addresses. Likewise, delivery services or couriers other than Royal Mail may not be able to deliver to such non-physical addresses. The UK government provides for couriers alternative geographic addresses to their BX addresses.<a rel="nofollow" class="external autonumber" href="https://www.gov.uk/government/organisations/hm-revenue-customs/contact/couriers">[2]</a> </p> <div class="mw-heading mw-heading3"><h3 id="Special_postcodes">Special postcodes</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=29" title="Edit section: Special postcodes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Postcodes" class="mw-redirect" title="Postcodes">Postcodes</a> are allocated by Royal Mail's Address Management Unit and cannot be purchased or specified by the recipient. However, Royal Mail sometimes assigns semi-<a href="/wiki/Mnemonic" title="Mnemonic">mnemonic</a> postcodes (sometimes based on the actual geographic postcode district) to high-profile organisations.<sup id="cite_ref-bbceu_53-0" class="reference"><a href="#cite_note-bbceu-53"><span class="cite-bracket">&#91;</span>53<span class="cite-bracket">&#93;</span></a></sup> </p><p>Prominent examples are: </p> <table class="wikitable"> <tbody><tr> <th>Postcode</th> <th>Organisation<sup id="cite_ref-addresspfinder_54-0" class="reference"><a href="#cite_note-addresspfinder-54"><span class="cite-bracket">&#91;</span>54<span class="cite-bracket">&#93;</span></a></sup> </th></tr> <tr> <td>B1 <b>1HQ</b></td> <td><a href="/wiki/HSBC_UK" title="HSBC UK">HSBC UK</a> <b>h</b>ead<b>q</b>uarters at <b>1</b> Centenary Square, Birmingham </td></tr> <tr> <td>BS98 1<b>TL</b></td> <td><a href="/wiki/TV_Licensing" class="mw-redirect" title="TV Licensing"><b>T</b>V <b>L</b>icensing</a><sup id="cite_ref-55" class="reference"><a href="#cite_note-55"><span class="cite-bracket">&#91;</span>55<span class="cite-bracket">&#93;</span></a></sup> (Now changed to DL98 1<b>TL</b>) </td></tr> <tr> <td>BX1 1<b>LT</b></td> <td><a href="/wiki/Lloyds_Bank" title="Lloyds Bank">Lloyds Bank formerly known as <b>L</b>loyds <b>T</b>SB Bank</a><sup id="cite_ref-56" class="reference"><a href="#cite_note-56"><span class="cite-bracket">&#91;</span>56<span class="cite-bracket">&#93;</span></a></sup>—non-geographic address </td></tr> <tr> <td>BX2 1<b>LB</b></td> <td><a href="/wiki/Bank_of_Scotland" title="Bank of Scotland">Bank of Scotland</a> (part of <a href="/wiki/Lloyds_Banking_Group" title="Lloyds Banking Group"><b>L</b>loyds <b>B</b>anking Group</a>)<sup id="cite_ref-57" class="reference"><a href="#cite_note-57"><span class="cite-bracket">&#91;</span>57<span class="cite-bracket">&#93;</span></a></sup>—non-geographic address </td></tr> <tr> <td>BX3 2<b>BB</b></td> <td><a href="/wiki/Barclays" title="Barclays"><b>B</b>arclays <b>B</b>ank</a><sup id="cite_ref-58" class="reference"><a href="#cite_note-58"><span class="cite-bracket">&#91;</span>58<span class="cite-bracket">&#93;</span></a></sup>—non-geographic address </td></tr> <tr> <td>BX4 <b>7SB</b></td> <td><a href="/wiki/TSB_Banking_Group" class="mw-redirect" title="TSB Banking Group"><b>TSB</b> Bank</a> </td></tr> <tr> <td>BX5 <b>5AT</b></td> <td><b><a href="/wiki/Value_added_tax" class="mw-redirect" title="Value added tax">VAT</a></b> Central Unit of <a href="/wiki/HM_Revenue_and_Customs" title="HM Revenue and Customs">HM Revenue and Customs</a><sup id="cite_ref-59" class="reference"><a href="#cite_note-59"><span class="cite-bracket">&#91;</span>59<span class="cite-bracket">&#93;</span></a></sup> (<a href="/wiki/Roman_numeral" class="mw-redirect" title="Roman numeral">Roman numeral</a> "<i>V</i>AT" = "<i>5</i>AT")—non-geographic address </td></tr> <tr> <td>CF10 1<b>BH</b></td> <td>Lloyds Banking Group (formerly <b>B</b>lack <b>H</b>orse Finance) </td></tr> <tr> <td>CF99 1<b>NA</b></td> <td><a href="/wiki/Senedd" title="Senedd">Senedd</a> (formerly <b>N</b>ational <b>A</b>ssembly for Wales) </td></tr> <tr> <td>CO4 <b>3SQ</b> </td> <td><a href="/wiki/University_of_Essex" title="University of Essex">University of Essex</a> (<b>Sq</b>uare <b>3</b>) </td></tr> <tr> <td>CV4 8<b>UW</b></td> <td><a href="/wiki/University_of_Warwick" title="University of Warwick"><b>U</b>niversity of <b>W</b>arwick</a> </td></tr> <tr> <td>CV35 0<b>DB</b></td> <td><a href="/wiki/Aston_Martin" title="Aston Martin">Aston Martin</a> after their sports cars named "<b>DB</b>" </td></tr> <tr> <td><b>DA</b>1 1<b>RT</b> </td> <td><a href="/wiki/Dartford_F.C." title="Dartford F.C.">Dartford F.C.</a> (nicknamed The <b>Dart</b>s) </td></tr> <tr> <td><s>D<b>E99</b> <b>3GG</b></s></td> <td><a href="/wiki/Egg_Banking" title="Egg Banking"><b>Egg</b> Banking</a> (decommissioned in February 2018, after the closure of the bank<sup id="cite_ref-60" class="reference"><a href="#cite_note-60"><span class="cite-bracket">&#91;</span>60<span class="cite-bracket">&#93;</span></a></sup> ) </td></tr> <tr> <td>DE55 4<b>SW</b></td> <td><a href="/wiki/Slimming_World" title="Slimming World"><b>S</b>limming <b>W</b>orld</a> </td></tr> <tr> <td>DH98 1<b>BT</b></td> <td><a href="/wiki/BT_Group" title="BT Group"><b>B</b>ritish <b>T</b>elecom</a> </td></tr> <tr> <td>DH99 1<b>NS</b></td> <td><a href="/wiki/National_Savings_and_Investments" title="National Savings and Investments"><b>N</b>ational <b>S</b>avings</a> certificates administration </td></tr> <tr> <td>E14 5<b>HQ</b></td> <td><a href="/wiki/HSBC" title="HSBC">HSBC</a> <b>h</b>ead<b>q</b>uarters at <a href="/wiki/8_Canada_Square" title="8 Canada Square">8 Canada Square</a>, Canary Wharf </td></tr> <tr> <td>E14 5<b>JP</b></td> <td><a href="/wiki/JP_Morgan" class="mw-redirect" title="JP Morgan"><b>JP</b> Morgan (Bank Street)</a> </td></tr> <tr> <td>E16 1<b>XL</b></td> <td><a href="/wiki/ExCeL_London" title="ExCeL London"><b>ExCeL</b> London</a><sup id="cite_ref-61" class="reference"><a href="#cite_note-61"><span class="cite-bracket">&#91;</span>61<span class="cite-bracket">&#93;</span></a></sup> </td></tr> <tr> <td>E20 2<b>AQ</b></td> <td>Olympic <b>Aq</b>uatics Centre </td></tr> <tr> <td>E20 2<b>BB</b></td> <td>Olympic <b>B</b>asket<b>b</b>all Arena </td></tr> <tr> <td>E20 2<b>ST</b></td> <td>Olympic <b>St</b>adium </td></tr> <tr> <td>E20 3<b>BS</b></td> <td>Olympic <b>B</b>roadca<b>s</b>t Centre </td></tr> <tr> <td>E20 3<b>EL</b></td> <td>Olympic V<b>el</b>odrome </td></tr> <tr> <td>E20 3<b>ET</b></td> <td>Olympic <b>Et</b>on Manor Tennis Courts </td></tr> <tr> <td>E20 3<b>HB</b></td> <td>Olympic <b>H</b>and<b>b</b>all Arena (now the <a href="/wiki/Copper_Box" class="mw-redirect" title="Copper Box">Copper Box</a>) </td></tr> <tr> <td>E20 3<b>HY</b></td> <td>Olympic <b>H</b>ocke<b>y</b> Stadium </td></tr> <tr> <td>E98 1<b>SN</b></td> <td><i><a href="/wiki/The_Sun_(United_Kingdom)" title="The Sun (United Kingdom)">The <b>S</b>u<b>n</b></a></i> newspaper </td></tr> <tr> <td>E98 1<b>ST</b></td> <td><i><a href="/wiki/The_Sunday_Times" title="The Sunday Times">The <b>S</b>unday <b>T</b>imes</a></i> newspaper </td></tr> <tr> <td>E98 1<b>TT</b></td> <td><i><a href="/wiki/The_Times" title="The Times"><b>T</b>he <b>T</b>imes</a></i> newspaper </td></tr> <tr> <td>EC2N 2<b>DB</b></td> <td><a href="/wiki/Deutsche_Bank" title="Deutsche Bank"><b>D</b>eutsche <b>B</b>ank</a> </td></tr> <tr> <td>EC2Y 8<b>HQ</b></td> <td><a href="/wiki/Linklaters" title="Linklaters">Linklaters</a> <b>h</b>ead<b>q</b>uarters at One <a href="/wiki/Silk_Street,_London" title="Silk Street, London">Silk Street</a> </td></tr> <tr> <td>EC4Y 0<b>HQ</b></td> <td>Royal Mail Group Ltd <b>h</b>ead<b>q</b>uarters </td></tr> <tr> <td>EC4Y 0<b>JP</b></td> <td><a href="/wiki/JP_Morgan" class="mw-redirect" title="JP Morgan"><b>JP</b> Morgan (Victoria Embankment)</a> </td></tr> <tr> <td>EH12 1<b>HQ</b></td> <td><a href="/wiki/NatWest_Group" title="NatWest Group">NatWest Group</a> <b>h</b>ead<b>q</b>uarters </td></tr> <tr> <td>EH<b>99</b> 1<b>SP</b></td> <td><a href="/wiki/Scottish_Parliament" title="Scottish Parliament"><b>S</b>cottish <b>P</b>arliament</a><sup id="cite_ref-62" class="reference"><a href="#cite_note-62"><span class="cite-bracket">&#91;</span>62<span class="cite-bracket">&#93;</span></a></sup> (founded in 19<b>99</b>) </td></tr> <tr> <td>G<b>58</b> 1<b>SB</b></td> <td><a href="/wiki/National_Savings_and_Investments" title="National Savings and Investments">National <b>S</b>avings <b>B</b>ank</a> (the district number <i>58</i> also approximates the outline of the initials <i>SB</i>) </td></tr> <tr> <td><b>GIR 0</b>AA</td> <td><a href="/wiki/Girobank" title="Girobank"><b>Giro</b>bank</a> (now <a href="/wiki/Santander_Corporate_Banking" class="mw-redirect" title="Santander Corporate Banking">Santander Corporate Banking</a>) </td></tr> <tr> <td>HA9 0<b>WS</b> </td> <td><b>W</b>embley <b>S</b>tadium </td></tr> <tr> <td><s>HP5 <b>1WA</b></s></td> <td><a href="/wiki/Inland_Waterways_Association" title="Inland Waterways Association"><b>I</b>nland <b>W</b>aterways <b>A</b>ssociation</a> (decommissioned when the IWA moved office in April 2023<sup id="cite_ref-63" class="reference"><a href="#cite_note-63"><span class="cite-bracket">&#91;</span>63<span class="cite-bracket">&#93;</span></a></sup>) </td></tr> <tr> <td>IV21 <b>2LR</b></td> <td><a href="/wiki/Two_Lochs_Radio" class="mw-redirect" title="Two Lochs Radio"><b>Two</b> <b>L</b>ochs <b>R</b>adio</a> </td></tr> <tr> <td>L30 4<b>GB</b></td> <td><b>G</b>iro<b>b</b>ank (alternative geographic postcode) </td></tr> <tr> <td>LS98 1<b>FD</b></td> <td><a href="/wiki/First_Direct" title="First Direct"><b>F</b>irst <b>D</b>irect</a> bank </td></tr> <tr> <td>M50 2<b>BH</b></td> <td>BBC <b>B</b>ridge <b>H</b>ouse </td></tr> <tr> <td>M50 2<b>QH</b></td> <td>BBC <b>Q</b>uay <b>H</b>ouse </td></tr> <tr> <td>N1 9<b>GU</b></td> <td><i><a href="/wiki/The_Guardian" title="The Guardian">The <b>Gu</b>ardian</a></i> newspaper </td></tr> <tr> <td>N81 1<b>ER</b></td> <td><a href="/wiki/Electoral_Reform_Services" class="mw-redirect" title="Electoral Reform Services"><b>E</b>lectoral <b>R</b>eform Services</a><sup id="cite_ref-non_geo_52-1" class="reference"><a href="#cite_note-non_geo-52"><span class="cite-bracket">&#91;</span>52<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-64" class="reference"><a href="#cite_note-64"><span class="cite-bracket">&#91;</span>64<span class="cite-bracket">&#93;</span></a></sup> </td></tr> <tr> <td>NE1 4<b>ST</b></td> <td><a href="/wiki/St_James%27_Park" title="St James&#39; Park"><b>St</b> James' Park <b>St</b>adium</a>, <a href="/wiki/Newcastle_United" class="mw-redirect" title="Newcastle United">Newcastle United</a> </td></tr> <tr> <td>NG80 1<b>EH</b></td> <td><a href="/wiki/Experian" title="Experian">Experian</a> <b>E</b>mbankment <b>H</b>ouse </td></tr> <tr> <td>NG80 1<b>LH</b></td> <td>Experian <b>L</b>ambert <b>H</b>ouse </td></tr> <tr> <td>NG80 1<b>RH</b></td> <td>Experian <b>R</b>iverleen <b>H</b>ouse </td></tr> <tr> <td>NG80 1<b>TH</b></td> <td>Experian <b>T</b>albot <b>H</b>ouse </td></tr> <tr> <td>PH1 5<b>RB</b></td> <td><b><a href="/wiki/Royal_Bank_of_Scotland" title="Royal Bank of Scotland">R</a></b><a href="/wiki/Royal_Bank_of_Scotland" title="Royal Bank of Scotland">oyal <b>B</b>ank of Scotland</a> Perth Chief Office </td></tr> <tr> <td>RM11 1<b>QT</b></td> <td><a href="/wiki/Queen%27s_Theatre,_Hornchurch" title="Queen&#39;s Theatre, Hornchurch"><b>Q</b>ueen's <b>T</b>heatre</a>, Hornchurch </td></tr> <tr> <td>PH1 2<b>SJ</b></td> <td><a href="/wiki/St_Johnstone_F.C." title="St Johnstone F.C."><b>S</b>t <b>J</b>ohnstone Football Club</a> </td></tr> <tr> <td>S2 4<b>SU</b></td> <td><a href="/wiki/Sheffield_United_F.C." title="Sheffield United F.C."><b>S</b>heffield <b>U</b>nited Football Club</a> </td></tr> <tr> <td>S6 1<b>SW</b></td> <td><a href="/wiki/Sheffield_Wednesday_F.C." title="Sheffield Wednesday F.C."><b>S</b>heffield <b>W</b>ednesday Football Club</a> </td></tr> <tr> <td>S<b>14 7UP</b></td> <td>The <a href="/wiki/World_Snooker_Championships" class="mw-redirect" title="World Snooker Championships">World Snooker Championships</a> at the <a href="/wiki/Crucible_Theatre" title="Crucible Theatre">Crucible Theatre</a>, Sheffield;<sup id="cite_ref-65" class="reference"><a href="#cite_note-65"><span class="cite-bracket">&#91;</span>65<span class="cite-bracket">&#93;</span></a></sup> 147 UP refers to a maximum lead (from a <a href="/wiki/Maximum_break" title="Maximum break">maximum break</a>) in snooker </td></tr> <tr> <td>S70 1<b>GW</b> </td> <td>The <b>G</b>lass <b>W</b>orks - retail and leisure centre in Barnsley town centre </td></tr> <tr> <td>SA99</td> <td><a href="/wiki/Driver_and_Vehicle_Licensing_Agency" title="Driver and Vehicle Licensing Agency">Driver and Vehicle Licensing Agency</a>—All postcodes starting with SA99 are for the DVLA offices in the <a href="/wiki/Morriston" title="Morriston">Morriston</a> area of <a href="/wiki/Swansea" title="Swansea">Swansea</a>, the final part of the postcode relates to the specific office or department within the DVLA </td></tr> <tr> <td>SE1 <b>0NE</b></td> <td><a href="/wiki/Thomas_Bennett_(architect)" title="Thomas Bennett (architect)"><b>One</b> America Street</a>, the London headquarters of architectural firm TP Bennett </td></tr> <tr> <td>SE1 8<b>UJ</b></td> <td><a href="/wiki/Union_Jack_Club" title="Union Jack Club"><b>U</b>nion <b>J</b>ack Club</a> </td></tr> <tr> <td>SM6 0<b>HB</b></td> <td><a href="/wiki/Homebase" title="Homebase"><b>H</b>ome<b>b</b>ase Limited</a> </td></tr> <tr> <td>SN38 1<b>NW</b></td> <td><a href="/wiki/Nationwide_Building_Society" title="Nationwide Building Society"><b>N</b>ation<b>w</b>ide Building Society</a> </td></tr> <tr> <td>SR5 1<b>SU</b></td> <td><a href="/wiki/Stadium_of_Light" title="Stadium of Light">Stadium of Light, <b>Su</b>nderland AFC</a> </td></tr> <tr> <td>SW1A 0AA</td> <td><a href="/wiki/House_of_Commons_of_the_United_Kingdom" title="House of Commons of the United Kingdom">House of Commons</a> (<a href="/wiki/Palace_of_Westminster" title="Palace of Westminster"><b>P</b>alace of <b>W</b>estminster</a>; see below for House of Lords) </td></tr> <tr> <td>SW1A 0<b>PW</b></td> <td><a href="/wiki/House_of_Lords" title="House of Lords">House of Lords</a> (<a href="/wiki/Palace_of_Westminster" title="Palace of Westminster"><b>P</b>alace of <b>W</b>estminster</a>; see above for House of Commons) </td></tr> <tr> <td>SW1A 1AA</td> <td><a href="/wiki/Buckingham_Palace" title="Buckingham Palace">Buckingham Palace</a> (<a href="/wiki/Monarchy_of_the_United_Kingdom" title="Monarchy of the United Kingdom">the Monarch</a>) </td></tr> <tr> <td>SW1A 2AA</td> <td><a href="/wiki/10_Downing_Street" title="10 Downing Street">10 Downing Street</a> (<a href="/wiki/Prime_Minister_of_the_United_Kingdom" title="Prime Minister of the United Kingdom">the Prime Minister</a>) </td></tr> <tr> <td>SW1A 2AB </td> <td><a href="/wiki/11_Downing_Street" title="11 Downing Street">11 Downing Street</a> (<a href="/wiki/Chancellor_of_the_Exchequer" title="Chancellor of the Exchequer">Chancellor of the Exchequer</a>) </td></tr> <tr> <td>SW1H 0<b>TL</b></td> <td><a href="/wiki/Transport_for_London" title="Transport for London"><b>T</b>ransport for <b>L</b>ondon</a> (Windsor House, 50 Victoria Street) </td></tr> <tr> <td>SW1P 3<b>EU</b></td> <td>European Commission and European Parliament office (<a href="/wiki/European_Union" title="European Union"><b>E</b>uropean <b>U</b>nion</a>) </td></tr> <tr> <td>SW1W 0<b>DT</b></td> <td><i><a href="/wiki/The_Daily_Telegraph" title="The Daily Telegraph">The <b>D</b>aily <b>T</b>elegraph</a></i> newspaper </td></tr> <tr> <td>SW1V 1<b>AP</b></td> <td><a href="/wiki/Apollo_Victoria_Theatre" title="Apollo Victoria Theatre"><b>Ap</b>ollo Victoria Theatre</a> </td></tr> <tr> <td>SW11 7<b>US</b></td> <td><a href="/wiki/Embassy_of_the_United_States,_London" title="Embassy of the United States, London">Embassy of the <b>U</b>nited <b>S</b>tates, London</a> </td></tr> <tr> <td>SW19 5<b>AE</b></td> <td><a href="/wiki/All_England_Lawn_Tennis_and_Croquet_Club" title="All England Lawn Tennis and Croquet Club"><b>A</b>ll <b>E</b>ngland Lawn Tennis and Croquet Club</a> (Venue of the <a href="/wiki/Wimbledon_Championships" title="Wimbledon Championships">Wimbledon Championships</a>) </td></tr> <tr> <td>TW8 9<b>GS</b></td> <td><i><a href="/wiki/GlaxoSmithKline" class="mw-redirect" title="GlaxoSmithKline"><b>G</b>laxo<b>S</b>mithKline</a></i> </td></tr> <tr> <td>W1A 1<b>AA</b></td> <td><a href="/wiki/BBC" title="BBC">BBC</a> <a href="/wiki/Broadcasting_House" title="Broadcasting House">Broadcasting House</a> (<a href="/wiki/W1A_(TV_series)" title="W1A (TV series)">independently notable postcode</a>) </td></tr> <tr> <td><s>W1D 4<b>FA</b></s></td> <td>The former address of <a href="/wiki/The_Football_Association" title="The Football Association">The <b>F</b>ootball <b>A</b>ssociation</a> (decommissioned in February 2010 after they moved location<sup id="cite_ref-66" class="reference"><a href="#cite_note-66"><span class="cite-bracket">&#91;</span>66<span class="cite-bracket">&#93;</span></a></sup>) </td></tr> <tr> <td>W1N 4<b>DJ</b></td> <td><a href="/wiki/BBC_Radio_1" title="BBC Radio 1">BBC Radio 1</a> (<a href="/wiki/Disc_jockey" title="Disc jockey"><b>d</b>isc <b>j</b>ockey</a>) </td></tr> <tr> <td>W1T 1<b>FB</b></td> <td><a href="/wiki/Facebook" title="Facebook"><b>F</b>ace<b>b</b>ook</a> </td></tr></tbody></table> <p>The postcode printed on Business Reply envelopes (which do not require a stamp) often ends with the letters <b>BR</b>. </p><p>Post codes ending 1AA are usually allocated to post offices (Crown, main and sub-) such as NR3 1AA for Magdalen Street post Office in Norwich. Some are defunct following disposal of former Post Office buildings (e.g. EH1 1AA in Edinburgh). </p> <div class="mw-heading mw-heading2"><h2 id="Operation">Operation</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=30" title="Edit section: Operation"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Sorting">Sorting</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=31" title="Edit section: Sorting"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Postcodes are used to sort letters to their destination either manually, where sorters use labelled frames, or increasingly with letter-coding systems, where machines assist in sorting.<sup id="cite_ref-compcomm1_67-0" class="reference"><a href="#cite_note-compcomm1-67"><span class="cite-bracket">&#91;</span>67<span class="cite-bracket">&#93;</span></a></sup> A variation of automated sorting uses <a href="/wiki/Optical_character_recognition" title="Optical character recognition">optical character recognition</a> (OCR) to read printed postcodes, best suited to mail that uses a standard layout and addressing format.<sup id="cite_ref-clear_68-0" class="reference"><a href="#cite_note-clear-68"><span class="cite-bracket">&#91;</span>68<span class="cite-bracket">&#93;</span></a></sup> </p><p>A long string of "faced" letters (i.e. turned to allow the address to be read) is presented to a keyboard operator at a coding desk, who types the postcodes onto the envelopes in coloured phosphor dots. The associated machine uses the outward codes in these dots to direct bundles of letters into the correct bags for specific delivery offices. With a machine knowledge of the specific addresses handled by each postal walk at each office, the bundles can be further sorted using the dots of the inward sorting code so that each delivery round receives only its own letters.<sup id="cite_ref-Postcodes_&amp;_Addresses_Explained_25-1" class="reference"><a href="#cite_note-Postcodes_&amp;_Addresses_Explained-25"><span class="cite-bracket">&#91;</span>25<span class="cite-bracket">&#93;</span></a></sup> This feature depends upon whether it is cost effective to second-sort outward letters, and tends to be used only at main sorting offices where high volumes are handled.<sup id="cite_ref-compcomm_69-0" class="reference"><a href="#cite_note-compcomm-69"><span class="cite-bracket">&#91;</span>69<span class="cite-bracket">&#93;</span></a></sup> </p><p>When postcodes are incomplete or missing, the operator reads the post town name and inserts a code sufficient for outward sorting to the post town, where others can further direct it. The mail bags of letter bundles are sent by road, air or train, and eventually by road to the delivery office.<sup id="cite_ref-compcomm_69-1" class="reference"><a href="#cite_note-compcomm-69"><span class="cite-bracket">&#91;</span>69<span class="cite-bracket">&#93;</span></a></sup> At the delivery office the mail that is handled manually is inward sorted to the postal walk that will deliver it; it is then "set in", i.e. sorted into the walk order that allows the deliverer the most convenient progress in the round.<sup id="cite_ref-Postcodes_&amp;_Addresses_Explained_25-2" class="reference"><a href="#cite_note-Postcodes_&amp;_Addresses_Explained-25"><span class="cite-bracket">&#91;</span>25<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-compcomm_69-2" class="reference"><a href="#cite_note-compcomm-69"><span class="cite-bracket">&#91;</span>69<span class="cite-bracket">&#93;</span></a></sup> The latter process is now being automated, as the roll-out of walk sequencing machines continues.<sup id="cite_ref-70" class="reference"><a href="#cite_note-70"><span class="cite-bracket">&#91;</span>70<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-improve_71-0" class="reference"><a href="#cite_note-improve-71"><span class="cite-bracket">&#91;</span>71<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Integrated_Mail_Processors">Integrated Mail Processors</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=32" title="Edit section: Integrated Mail Processors"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Integrated Mail Processors (IMPs) read the postcode on the item and translate it into two phosphorus barcodes representing the inward and outward parts of the postcode, which the machines subsequently print and read to sort the mail to the correct outward postcode. Letters may also be sequentially sorted by a Compact Sequence Sorter (CSS) reading the outward postcode in the order that a walking postman/woman will deliver, door to door. On such items the top phosphorous barcode is the inward part of the code, the bottom is the outward.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (December 2012)">citation needed</span></a></i>&#93;</sup> </p><p>IMPs can also read RM4SCC items, as used in Cleanmail, a different format to the above. </p> <div class="mw-heading mw-heading4"><h4 id="Mailsort_and_Walksort">Mailsort and Walksort</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=33" title="Edit section: Mailsort and Walksort"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A newer system of five-digit codes called <a href="/wiki/Mailsort" title="Mailsort">Mailsort</a> was designed for users who send "a minimum of 4,000 letter-sized items".<sup id="cite_ref-mailsort_faq_72-0" class="reference"><a href="#cite_note-mailsort_faq-72"><span class="cite-bracket">&#91;</span>72<span class="cite-bracket">&#93;</span></a></sup> It encodes the outward part of the postcode in a way that is useful for mail routing, so that a particular range of Mailsort codes goes on a particular plane or lorry. Mailsort users are supplied with a database to allow them to convert from postcodes to Mailsort codes and receive a discount if they deliver mail to the post office split up by Mailsort code. Users providing outgoing mail sorted by postcode receive no such incentive since postcode areas and districts are assigned using permanent mnemonics and do not therefore assist with grouping items together into operationally significant blocks. Walksort<sup class="noprint Inline-Template" style="margin-left:0.1em; white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Please_clarify" title="Wikipedia:Please clarify"><span title="The text near this tag may need clarification or removal of jargon. (November 2016)">clarification needed</span></a></i>&#93;</sup> was discontinued in May 2012. </p> <div class="mw-heading mw-heading2"><h2 id="Listings_and_availability">Listings and availability</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=34" title="Edit section: Listings and availability"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">Further information: <a href="/wiki/List_of_postcode_areas_in_the_United_Kingdom" title="List of postcode areas in the United Kingdom">List of postcode areas in the United Kingdom</a>, <a href="/wiki/List_of_postcode_districts_in_the_United_Kingdom" title="List of postcode districts in the United Kingdom">List of postcode districts in the United Kingdom</a>, and <a href="/wiki/List_of_post_towns_in_the_United_Kingdom" title="List of post towns in the United Kingdom">List of post towns in the United Kingdom</a></div> <p>There are approximately 1.7&#160;million postcodes in the United Kingdom, the Channel Islands and the Isle of Man.<sup id="cite_ref-pafstats1208_73-0" class="reference"><a href="#cite_note-pafstats1208-73"><span class="cite-bracket">&#91;</span>73<span class="cite-bracket">&#93;</span></a></sup> </p><p>Each postcode is divided by a space into two parts. As mentioned above, the first part starts with the <a href="/wiki/Postcode_area" class="mw-redirect" title="Postcode area">postcode area</a> and ends with the <a href="/wiki/Postcode_district" class="mw-redirect" title="Postcode district">postcode district</a>. The second part begins with a single digit, which indicates the <b>postcode sector</b>, and ends with the postcode unit. </p><p>Postcode areas are also divided into several <a href="/wiki/Post_town" title="Post town">post towns</a>, which predate the introduction of postcodes, with the <a href="/wiki/London_postal_district" title="London postal district">London</a> post town uniquely covering more than one postcode area. </p><p>As of June 2016, there are 124 postcode areas, 2,987 postcode districts, 11,192 postcode sectors, and 1,500 post towns.<sup id="cite_ref-pafstats1208_73-1" class="reference"><a href="#cite_note-pafstats1208-73"><span class="cite-bracket">&#91;</span>73<span class="cite-bracket">&#93;</span></a></sup> As of January&#160;2021<sup class="plainlinks noexcerpt noprint asof-tag update" style="display:none;"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit">&#91;update&#93;</a></sup>, 55,540 full postcodes in England and Wales contain only one household.<sup id="cite_ref-ons20210127_74-0" class="reference"><a href="#cite_note-ons20210127-74"><span class="cite-bracket">&#91;</span>74<span class="cite-bracket">&#93;</span></a></sup> Addresses receiving large volumes of mail are each assigned separate "large user" postcodes. But most postcodes are shared by several neighbouring properties, typically covering about 15 addresses. </p> <div class="mw-heading mw-heading3"><h3 id="Life-cycle_of_postcodes">Life-cycle of postcodes</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=35" title="Edit section: Life-cycle of postcodes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>There are also significant numbers of discontinued (terminated) codes.<sup id="cite_ref-ONS_Geography_Guide_-_postcode_termination_75-0" class="reference"><a href="#cite_note-ONS_Geography_Guide_-_postcode_termination-75"><span class="cite-bracket">&#91;</span>75<span class="cite-bracket">&#93;</span></a></sup> Each month some 2,750 postcodes are created and 2,500 terminated.<sup id="cite_ref-76" class="reference"><a href="#cite_note-76"><span class="cite-bracket">&#91;</span>76<span class="cite-bracket">&#93;</span></a></sup> </p> <table class="wikitable"> <tbody><tr> <th>Component</th> <th>Part</th> <th>Example</th> <th>Live codes<sup id="cite_ref-mailsort_tech_77-0" class="reference"><a href="#cite_note-mailsort_tech-77"><span class="cite-bracket">&#91;</span>77<span class="cite-bracket">&#93;</span></a></sup></th> <th>Terminated codes<sup id="cite_ref-statistics_78-0" class="reference"><a href="#cite_note-statistics-78"><span class="cite-bracket">&#91;</span>78<span class="cite-bracket">&#93;</span></a></sup></th> <th>Other codes<sup class="noprint Inline-Template" style="margin-left:0.1em; white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Please_clarify" title="Wikipedia:Please clarify"><span title="The text near this tag may need clarification or removal of jargon. (July 2023)">clarification needed</span></a></i>&#93;</sup></th> <th>Total </th></tr> <tr> <td>Postcode area</td> <td>Out code</td> <td>YO</td> <td align="right">124</td> <td align="right">0</td> <td align="right">3</td> <td align="right">127 </td></tr> <tr> <td>Postcode district</td> <td>Out code</td> <td>YO31</td> <td align="right">2,984</td> <td align="right">103</td> <td align="right">4</td> <td align="right">3,087 </td></tr> <tr> <td>Postcode sector</td> <td>In code</td> <td>YO31 1</td> <td align="right">11,197</td> <td align="right">1,071</td> <td align="right">4</td> <td align="right">12,272 </td></tr> <tr> <td>Postcode unit</td> <td>In code</td> <td>YO31 1EB</td> <td align="right">1,767,416<sup id="cite_ref-statistics_78-1" class="reference"><a href="#cite_note-statistics-78"><span class="cite-bracket">&#91;</span>78<span class="cite-bracket">&#93;</span></a></sup></td> <td align="right">876,312</td> <td align="right">4</td> <td align="right">2,643,732 </td></tr> <tr> <td colspan="3"><a href="/wiki/Postcode_Address_File" title="Postcode Address File">Postcode Addresses</a></td> <td align="right">Approx. 29,965,962<sup id="cite_ref-mail_paf_79-0" class="reference"><a href="#cite_note-mail_paf-79"><span class="cite-bracket">&#91;</span>79<span class="cite-bracket">&#93;</span></a></sup> </td> <td colspan="3"> </td></tr></tbody></table> <div class="mw-heading mw-heading3"><h3 id="Postcode_Address_File_(PAF)"><span id="Postcode_Address_File_.28PAF.29"></span>Postcode Address File (PAF)</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=36" title="Edit section: Postcode Address File (PAF)"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The Address Management Unit of <a href="/wiki/Royal_Mail" title="Royal Mail">Royal Mail</a> maintains an official database of UK postal addresses and postcodes in its <a href="/wiki/Postcode_Address_File" title="Postcode Address File">Postcode Address File</a> (PAF), which is made available under licence for a fee regulated by <a href="/wiki/Ofcom" title="Ofcom">Ofcom</a>. The PAF is commercially licensable and is often incorporated in address management software packages. The capabilities of such packages allow most addresses to be constructed solely from the postcode and house number. By including the <a href="/wiki/Ordnance_Survey" title="Ordnance Survey">map references</a> of postcodes in the address database, the postcode can be used to pinpoint a postcode area on a map. PAF is updated daily. </p><p>On its website, Royal Mail publishes summary information about major changes to postcode sectors and postal localities (including post towns). Individual postcodes or postal addresses can be found using Royal Mail's <a rel="nofollow" class="external text" href="http://www.royalmail.com/find-a-postcode">Postcode and Address Finder</a> website, but this is limited to 50 free searches per user per day. </p> <div class="mw-heading mw-heading3"><h3 id="Code-Point_Open">Code-Point Open</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=37" title="Edit section: Code-Point Open"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A complete list of all current Great Britain postcodes, known as Code-Point Open, has been made available online (since 1 April 2010) by Ordnance Survey. Under the government's <a href="/wiki/OS_OpenData" class="mw-redirect" title="OS OpenData">OS OpenData</a> initiative, it is available for re-use without charge under an attribution-only licence. The Code-Point Open list includes median coordinates for each postcode but excludes postcodes in Northern Ireland and the <a href="/wiki/Crown_dependencies" class="mw-redirect" title="Crown dependencies">Crown dependencies</a>. Unlike the PAF products provided by Royal Mail, the Code-Point Open list does not include postal address text. </p> <div class="mw-heading mw-heading3"><h3 id="ONS_Postcode_Directory_and_National_Statistics_Postcode_Lookup">ONS Postcode Directory and National Statistics Postcode Lookup</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=38" title="Edit section: ONS Postcode Directory and National Statistics Postcode Lookup"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <a href="/wiki/Office_for_National_Statistics" title="Office for National Statistics">Office for National Statistics</a> also produces postcode directories, under similar licence terms to the OS product. Both the ONSPD and NSPL contain Northern Ireland postcodes, with centroid coordinates in the <a href="/wiki/Ordnance_Survey_Ireland" title="Ordnance Survey Ireland">OSI</a> grid as opposed to the <a href="/wiki/Ordnance_Survey_National_Grid" title="Ordnance Survey National Grid">OSGB grid</a>, although Northern Ireland postcodes are subject to a more restrictive licence permitting internal business use only.<sup id="cite_ref-ons_80-0" class="reference"><a href="#cite_note-ons-80"><span class="cite-bracket">&#91;</span>80<span class="cite-bracket">&#93;</span></a></sup> Postcodes for the Crown Dependences are also included, without co-ordinates. A further difference is that non-current postcodes and dates of introduction and withdrawal of postcodes are included. </p> <div class="mw-heading mw-heading2"><h2 id="Other_uses">Other uses</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=39" title="Edit section: Other uses"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">See also: <a href="/wiki/Postcode_lottery" title="Postcode lottery">Postcode lottery</a></div> <p>While postcodes were introduced to expedite the delivery of mail, they are useful tools for other purposes, particularly because codes are very fine-grained and identify just a few addresses. Among these uses are: </p> <ul><li>With <a href="/wiki/Satellite_navigation" title="Satellite navigation">satellite navigation</a> systems, to navigate to an address by street number and postcode</li> <li>By life insurance companies and pension funds to assess longevity for pricing and reserving<sup id="cite_ref-insurance_81-0" class="reference"><a href="#cite_note-insurance-81"><span class="cite-bracket">&#91;</span>81<span class="cite-bracket">&#93;</span></a></sup></li> <li>By other types of insurance companies to assess premiums for motoring/business/domestic policies</li> <li>To determine <a href="/wiki/Catchment_area_(human_geography)" class="mw-redirect" title="Catchment area (human geography)">catchment areas</a> for school places or <a href="/wiki/General_practitioner" title="General practitioner">doctors'</a> surgeries</li> <li>Finding the nearest branch of an organisation to a given address. A computer program uses the postcodes of the target address and the branches to list the closest branches in order of distance as the crow flies (or, if used in conjunction with street-map software, by road distance). This can be used by companies to inform potential customers where to go, by <a href="/wiki/Job_centre" class="mw-redirect" title="Job centre">job centres</a> to find jobs for job-seekers, to alert people of <a href="/wiki/Town_planning" class="mw-redirect" title="Town planning">town planning</a> applications in their area, and a great many other applications.<sup id="cite_ref-planning_22-1" class="reference"><a href="#cite_note-planning-22"><span class="cite-bracket">&#91;</span>22<span class="cite-bracket">&#93;</span></a></sup></li></ul> <p>The phrase "<a href="/wiki/Postcode_lottery" title="Postcode lottery">postcode lottery</a>" refers to the variation in the availability of services by region, though not always because of postcodes. </p><p>For these and related reasons, postcodes in some areas have become indicators of social status. Some residents have campaigned to change their postcode to associate themselves with a more desirable area,<sup id="cite_ref-82" class="reference"><a href="#cite_note-82"><span class="cite-bracket">&#91;</span>82<span class="cite-bracket">&#93;</span></a></sup> to disassociate with a poorer area,<sup id="cite_ref-83" class="reference"><a href="#cite_note-83"><span class="cite-bracket">&#91;</span>83<span class="cite-bracket">&#93;</span></a></sup> to reduce insurance premiums or to be associated with an area with a lower <a href="/wiki/Cost_of_living" title="Cost of living">cost of living</a>.<sup id="cite_ref-84" class="reference"><a href="#cite_note-84"><span class="cite-bracket">&#91;</span>84<span class="cite-bracket">&#93;</span></a></sup> In all these cases <a href="/wiki/Royal_Mail" title="Royal Mail">Royal Mail</a> has said that there is "virtually no hope" of changing the postcode, referring to their policy of changing postcodes only to match changes in their operations.<sup id="cite_ref-85" class="reference"><a href="#cite_note-85"><span class="cite-bracket">&#91;</span>85<span class="cite-bracket">&#93;</span></a></sup> </p><p>Postcode areas rarely align with local government boundaries. The phenomenon whereby postcodes overlap administrative boundaries is known as 'straddling'.<sup id="cite_ref-ONS_Geography_Guide_86-0" class="reference"><a href="#cite_note-ONS_Geography_Guide-86"><span class="cite-bracket">&#91;</span>86<span class="cite-bracket">&#93;</span></a></sup> Some postcodes straddle <a href="/wiki/England" title="England">England</a>'s borders with <a href="/wiki/Wales" title="Wales">Wales</a> and <a href="/wiki/Scotland" title="Scotland">Scotland</a>. This has led to <a href="/wiki/British_Sky_Broadcasting" class="mw-redirect" title="British Sky Broadcasting">British Sky Broadcasting</a> subscribers receiving the wrong BBC and ITV regions, and newly licensed <a href="/wiki/Radio_amateurs" class="mw-redirect" title="Radio amateurs">radio amateurs</a> being given incorrect <a href="/wiki/Call_signs" class="mw-redirect" title="Call signs">call signs</a>. </p> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol 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title="Template talk:Postcode areas in the United Kingdom"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Postcode_areas_in_the_United_Kingdom" title="Special:EditPage/Template:Postcode areas in the United Kingdom"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Postcode_areas_in_the_United_Kingdom_and_its_dependencies" style="font-size:114%;margin:0 4em"><a href="/wiki/List_of_postcode_areas_in_the_United_Kingdom" title="List of postcode areas in the United Kingdom">Postcode areas in the United Kingdom and its dependencies</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/AB_postcode_area" title="AB postcode area">AB</a></li> <li><a href="/wiki/AL_postcode_area" title="AL postcode area">AL</a></li> <li><a href="/wiki/B_postcode_area" title="B postcode area">B</a></li> <li><a href="/wiki/BA_postcode_area" title="BA postcode area">BA</a></li> <li><a href="/wiki/BB_postcode_area" title="BB postcode area">BB</a></li> <li><a href="/wiki/BD_postcode_area" title="BD postcode area">BD</a></li> <li><a href="/wiki/BH_postcode_area" title="BH postcode area">BH</a></li> <li><a href="/wiki/BL_postcode_area" title="BL postcode area">BL</a></li> <li><a href="/wiki/BN_postcode_area" title="BN postcode area">BN</a></li> <li><a href="/wiki/BR_postcode_area" title="BR postcode area">BR</a></li> <li><a href="/wiki/BS_postcode_area" title="BS postcode area">BS</a></li> <li><a href="/wiki/BT_postcode_area" title="BT postcode area">BT</a></li> <li><a href="/wiki/CA_postcode_area" title="CA postcode area">CA</a></li> <li><a href="/wiki/CB_postcode_area" title="CB postcode area">CB</a></li> <li><a href="/wiki/CF_postcode_area" title="CF postcode area">CF</a></li> <li><a href="/wiki/CH_postcode_area" title="CH postcode area">CH</a></li> <li><a href="/wiki/CM_postcode_area" title="CM postcode area">CM</a></li> <li><a href="/wiki/CO_postcode_area" title="CO postcode area">CO</a></li> <li><a href="/wiki/CR_postcode_area" title="CR postcode area">CR</a></li> <li><a href="/wiki/CT_postcode_area" title="CT postcode area">CT</a></li> <li><a href="/wiki/CV_postcode_area" title="CV postcode area">CV</a></li> <li><a href="/wiki/CW_postcode_area" title="CW postcode area">CW</a></li> <li><a href="/wiki/DA_postcode_area" title="DA postcode area">DA</a></li> <li><a href="/wiki/DD_postcode_area" title="DD postcode area">DD</a></li> <li><a href="/wiki/DE_postcode_area" title="DE postcode area">DE</a></li> <li><a href="/wiki/DG_postcode_area" title="DG postcode area">DG</a></li> <li><a href="/wiki/DH_postcode_area" title="DH postcode area">DH</a></li> <li><a href="/wiki/DL_postcode_area" title="DL postcode area">DL</a></li> <li><a href="/wiki/DN_postcode_area" title="DN postcode area">DN</a></li> <li><a href="/wiki/DT_postcode_area" title="DT postcode area">DT</a></li> <li><a href="/wiki/DY_postcode_area" title="DY postcode area">DY</a></li> <li><a href="/wiki/E_postcode_area" title="E postcode area">E</a></li> <li><a href="/wiki/EC_postcode_area" title="EC postcode area">EC</a></li> <li><a href="/wiki/EH_postcode_area" title="EH postcode area">EH</a></li> <li><a href="/wiki/EN_postcode_area" title="EN postcode area">EN</a></li> <li><a href="/wiki/EX_postcode_area" title="EX postcode area">EX</a></li> <li><a href="/wiki/FK_postcode_area" title="FK postcode area">FK</a></li> <li><a href="/wiki/FY_postcode_area" title="FY postcode area">FY</a></li> <li><a href="/wiki/G_postcode_area" title="G postcode area">G</a></li> <li><a href="/wiki/GL_postcode_area" title="GL postcode area">GL</a></li> <li><a href="/wiki/GU_postcode_area" title="GU postcode area">GU</a></li> <li><a href="/wiki/HA_postcode_area" title="HA postcode area">HA</a></li> <li><a href="/wiki/HD_postcode_area" title="HD postcode area">HD</a></li> <li><a href="/wiki/HG_postcode_area" title="HG postcode area">HG</a></li> <li><a href="/wiki/HP_postcode_area" title="HP postcode area">HP</a></li> <li><a href="/wiki/HR_postcode_area" title="HR postcode area">HR</a></li> <li><a href="/wiki/HS_postcode_area" title="HS postcode area">HS</a></li> <li><a href="/wiki/HU_postcode_area" title="HU postcode area">HU</a></li> <li><a href="/wiki/HX_postcode_area" title="HX postcode area">HX</a></li> <li><a href="/wiki/IG_postcode_area" title="IG postcode area">IG</a></li> <li><a href="/wiki/IP_postcode_area" title="IP postcode area">IP</a></li> <li><a href="/wiki/IV_postcode_area" title="IV postcode area">IV</a></li> <li><a href="/wiki/KA_postcode_area" title="KA postcode area">KA</a></li> <li><a href="/wiki/KT_postcode_area" title="KT postcode area">KT</a></li> <li><a href="/wiki/KW_postcode_area" title="KW postcode area">KW</a></li> <li><a href="/wiki/KY_postcode_area" title="KY postcode area">KY</a></li> <li><a href="/wiki/L_postcode_area" title="L postcode area">L</a></li> <li><a href="/wiki/LA_postcode_area" title="LA postcode area">LA</a></li> <li><a href="/wiki/LD_postcode_area" title="LD postcode area">LD</a></li> <li><a href="/wiki/LE_postcode_area" title="LE postcode area">LE</a></li> <li><a href="/wiki/LL_postcode_area" title="LL postcode area">LL</a></li> <li><a href="/wiki/LN_postcode_area" title="LN postcode area">LN</a></li> <li><a href="/wiki/LS_postcode_area" title="LS postcode area">LS</a></li> <li><a href="/wiki/LU_postcode_area" title="LU postcode area">LU</a></li> <li><a href="/wiki/M_postcode_area" title="M postcode area">M</a></li> <li><a href="/wiki/ME_postcode_area" title="ME postcode area">ME</a></li> <li><a href="/wiki/MK_postcode_area" title="MK postcode area">MK</a></li> <li><a href="/wiki/ML_postcode_area" title="ML postcode area">ML</a></li> <li><a href="/wiki/N_postcode_area" title="N postcode area">N</a></li> <li><a href="/wiki/NE_postcode_area" title="NE postcode area">NE</a></li> <li><a href="/wiki/NG_postcode_area" title="NG postcode area">NG</a></li> <li><a href="/wiki/NN_postcode_area" title="NN postcode area">NN</a></li> <li><a href="/wiki/NP_postcode_area" title="NP postcode area">NP</a></li> <li><a href="/wiki/NR_postcode_area" title="NR postcode area">NR</a></li> <li><a href="/wiki/NW_postcode_area" title="NW postcode area">NW</a></li> <li><a href="/wiki/OL_postcode_area" title="OL postcode area">OL</a></li> <li><a href="/wiki/OX_postcode_area" title="OX postcode area">OX</a></li> <li><a href="/wiki/PA_postcode_area" title="PA postcode area">PA</a></li> <li><a href="/wiki/PE_postcode_area" title="PE postcode area">PE</a></li> <li><a href="/wiki/PH_postcode_area" title="PH postcode area">PH</a></li> <li><a href="/wiki/PL_postcode_area" title="PL postcode area">PL</a></li> <li><a href="/wiki/PO_postcode_area" title="PO postcode area">PO</a></li> <li><a href="/wiki/PR_postcode_area" title="PR postcode area">PR</a></li> <li><a href="/wiki/RG_postcode_area" title="RG postcode area">RG</a></li> <li><a href="/wiki/RH_postcode_area" title="RH postcode area">RH</a></li> <li><a href="/wiki/RM_postcode_area" title="RM postcode area">RM</a></li> <li><a href="/wiki/S_postcode_area" title="S postcode area">S</a></li> <li><a href="/wiki/SA_postcode_area" title="SA postcode area">SA</a></li> <li><a href="/wiki/SE_postcode_area" title="SE postcode area">SE</a></li> <li><a href="/wiki/SG_postcode_area" title="SG postcode area">SG</a></li> <li><a href="/wiki/SK_postcode_area" title="SK postcode area">SK</a></li> <li><a href="/wiki/SL_postcode_area" title="SL postcode area">SL</a></li> <li><a href="/wiki/SM_postcode_area" title="SM postcode area">SM</a></li> <li><a href="/wiki/SN_postcode_area" title="SN postcode area">SN</a></li> <li><a href="/wiki/SO_postcode_area" title="SO postcode area">SO</a></li> <li><a href="/wiki/SP_postcode_area" title="SP postcode area">SP</a></li> <li><a href="/wiki/SR_postcode_area" title="SR postcode area">SR</a></li> <li><a href="/wiki/SS_postcode_area" title="SS postcode area">SS</a></li> <li><a href="/wiki/ST_postcode_area" title="ST postcode area">ST</a></li> <li><a href="/wiki/SW_postcode_area" title="SW postcode area">SW</a></li> <li><a href="/wiki/SY_postcode_area" title="SY postcode area">SY</a></li> <li><a href="/wiki/TA_postcode_area" title="TA postcode area">TA</a></li> <li><a href="/wiki/TD_postcode_area" title="TD postcode area">TD</a></li> <li><a href="/wiki/TF_postcode_area" title="TF postcode area">TF</a></li> <li><a href="/wiki/TN_postcode_area" title="TN postcode area">TN</a></li> <li><a href="/wiki/TQ_postcode_area" title="TQ postcode area">TQ</a></li> <li><a href="/wiki/TR_postcode_area" title="TR postcode area">TR</a></li> <li><a href="/wiki/TS_postcode_area" title="TS postcode area">TS</a></li> <li><a href="/wiki/TW_postcode_area" title="TW postcode area">TW</a></li> <li><a href="/wiki/UB_postcode_area" title="UB postcode area">UB</a></li> <li><a href="/wiki/W_postcode_area" title="W postcode area">W</a></li> <li><a href="/wiki/WA_postcode_area" title="WA postcode area">WA</a></li> <li><a href="/wiki/WC_postcode_area" title="WC postcode area">WC</a></li> <li><a href="/wiki/WD_postcode_area" title="WD postcode area">WD</a></li> <li><a href="/wiki/WF_postcode_area" title="WF postcode area">WF</a></li> <li><a href="/wiki/WN_postcode_area" title="WN postcode area">WN</a></li> <li><a href="/wiki/WR_postcode_area" title="WR postcode area">WR</a></li> <li><a href="/wiki/WS_postcode_area" title="WS postcode area">WS</a></li> <li><a href="/wiki/WV_postcode_area" title="WV postcode area">WV</a></li> <li><a href="/wiki/YO_postcode_area" title="YO postcode area">YO</a></li> <li><a href="/wiki/ZE_postcode_area" title="ZE postcode area">ZE</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Crown dependencies</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/GY_postcode_area" title="GY postcode area">GY</a></li> <li><a href="/wiki/IM_postcode_area" title="IM postcode area">IM</a></li> <li><a href="/wiki/JE_postcode_area" title="JE postcode area">JE</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Overseas territories</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a class="mw-selflink-fragment" href="#British_Overseas_Territories">AI</a></li> <li><a class="mw-selflink-fragment" href="#British_Overseas_Territories">ASCN</a></li> <li><a class="mw-selflink-fragment" href="#British_Overseas_Territories">BBND</a></li> <li><a class="mw-selflink-fragment" href="#British_Overseas_Territories">BIQQ</a></li> <li><a class="mw-selflink-fragment" href="#British_Overseas_Territories">FIQQ</a></li> <li><a href="/wiki/Postal_addresses_in_Gibraltar" title="Postal addresses in Gibraltar">GX</a></li> <li><a class="mw-selflink-fragment" href="#British_Overseas_Territories">KY</a></li> <li><a class="mw-selflink-fragment" href="#British_Overseas_Territories">MSR</a></li> <li><a class="mw-selflink-fragment" href="#British_Overseas_Territories">PCRN</a></li> <li><a class="mw-selflink-fragment" href="#British_Overseas_Territories">SIQQ</a></li> <li><a class="mw-selflink-fragment" href="#British_Overseas_Territories">STHL</a></li> <li><a class="mw-selflink-fragment" href="#British_Overseas_Territories">TDCU</a></li> <li><a class="mw-selflink-fragment" href="#British_Overseas_Territories">TKCA</a></li> <li><a class="mw-selflink-fragment" href="#British_Overseas_Territories">VG</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Non-geographic</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/British_Forces_Post_Office" title="British Forces Post Office">BF</a></li> <li><a href="/wiki/List_of_postcode_areas_in_the_United_Kingdom#BX" title="List of postcode areas in the United Kingdom">BX</a></li> <li><a href="/wiki/List_of_postcode_areas_in_the_United_Kingdom#GIR" title="List of postcode areas in the United Kingdom">GIR</a></li> <li><a href="/wiki/List_of_postcode_areas_in_the_United_Kingdom#XX" title="List of postcode areas in the United Kingdom">XX</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li>Related UK lists: <a href="/wiki/List_of_postcode_districts_in_the_United_Kingdom" title="List of postcode districts in the United Kingdom">Postcode districts</a></li> <li><a href="/wiki/List_of_post_towns_in_the_United_Kingdom" title="List of post towns in the United Kingdom">Post towns</a></li> <li><a href="/wiki/Postal_counties_of_the_United_Kingdom" title="Postal counties of the United Kingdom">Postal counties</a></li> <li><a href="/wiki/London_postal_district" title="London postal district">London postal district</a></li></ul> </div></td></tr></tbody></table></div> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=40" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/List_of_postcode_areas_in_the_United_Kingdom" title="List of postcode areas in the United Kingdom">List of postcode areas in the United Kingdom</a></li> <li><a href="/wiki/List_of_postal_codes" title="List of postal codes">List of postal codes</a> (around the world)</li> <li><a href="/wiki/ACORN_(geodemography)" class="mw-redirect" title="ACORN (geodemography)">ACORN</a></li> <li><a href="/wiki/Address_Point" title="Address Point">Address Point</a></li> <li><a href="/wiki/Postcode_lottery" title="Postcode lottery">Postcode lottery</a></li> <li><a href="/wiki/RM4SCC" title="RM4SCC">RM4SCC</a>—a machine-readable barcode version of the postcode and delivery point suffix</li> <li><a href="/wiki/Postcode_Address_File" title="Postcode Address File">Postcode Address File</a></li> <li><a href="/wiki/Unique_Property_Reference_Number" title="Unique Property Reference Number">Unique Property Reference Number</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Postcodes_in_the_United_Kingdom&amp;action=edit&amp;section=41" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-guide-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-guide_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-guide_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-guide_1-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFRoyal_Mail2004" class="citation book cs1"><a href="/wiki/Royal_Mail" title="Royal Mail">Royal Mail</a> (October 2004). <i>Address Management Guide</i> (4&#160;ed.). 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April 2012. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20120524131704/http://www.mod.uk/NR/rdonlyres/D4C88C78-EB65-405E-ACBD-C107A28D5981/0/bfpo__indicator_list.pdf">Archived</a> <span class="cs1-format">(PDF)</span> from the original on 24 May 2012<span class="reference-accessdate">. Retrieved <span class="nowrap">30 July</span> 2012</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=BFPO+Indicator+List&amp;rft.pub=Ministry+of+Defence&amp;rft.date=2012-04&amp;rft_id=http%3A%2F%2Fwww.mod.uk%2FNR%2Frdonlyres%2FD4C88C78-EB65-405E-ACBD-C107A28D5981%2F0%2Fbfpo&#95;_indicator_list.pdf&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span></span> </li> <li id="cite_note-non_geo-52"><span class="mw-cite-backlink">^ <a href="#cite_ref-non_geo_52-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-non_geo_52-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="ftp://ftp.royalmail.com/Downloads/public/ctf/rm/07mar_Current_Non_Geo.pdf">"07mar_Current_Non_Geo.xls"</a> <span class="cs1-format">(PDF)</span><span class="reference-accessdate">. Retrieved <span class="nowrap">1 September</span> 2010</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=07mar_Current_Non_Geo.xls&amp;rft_id=ftp%3A%2F%2Fftp.royalmail.com%2FDownloads%2Fpublic%2Fctf%2Frm%2F07mar_Current_Non_Geo.pdf&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span><sup class="noprint Inline-Template"><span style="white-space: nowrap;">&#91;<i><a href="/wiki/Wikipedia:Link_rot" title="Wikipedia:Link rot"><span title="&#160;Dead link tagged April 2017">permanent dead link</span></a></i><span style="visibility:hidden; color:transparent; padding-left:2px">&#8205;</span>&#93;</span></sup></span> </li> <li id="cite_note-bbceu-53"><span class="mw-cite-backlink"><b><a href="#cite_ref-bbceu_53-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFStamp2012" class="citation news cs1">Stamp, Gavin (31 July 2012). <a rel="nofollow" class="external text" href="https://www.bbc.co.uk/news/uk-politics-19046445">"Postcode lottery? 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Retrieved <span class="nowrap">31 July</span> 2012</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Contact+Us&amp;rft.pub=Scottish.parliament.uk&amp;rft_id=http%3A%2F%2Fwww.scottish.parliament.uk%2Fhelp%2F13593.aspx&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span></span> </li> <li id="cite_note-63"><span class="mw-cite-backlink"><b><a href="#cite_ref-63">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://waterways.org.uk/contact-us">"Contact Us"</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Contact+Us&amp;rft_id=https%3A%2F%2Fwaterways.org.uk%2Fcontact-us&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span></span> </li> <li id="cite_note-64"><span class="mw-cite-backlink"><b><a href="#cite_ref-64">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFGazette58985" class="citation magazine cs1"><a rel="nofollow" class="external text" href="https://www.thegazette.co.uk/London/issue/58985/page/3105">"No. 58985"</a>. <i><a href="/wiki/The_London_Gazette" title="The London Gazette">The London Gazette</a></i>. 20 February 2009. p.&#160;3105.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=The+London+Gazette&amp;rft.atitle=No.+58985&amp;rft.pages=3105&amp;rft.date=2009-02-20&amp;rft_id=https%3A%2F%2Fwww.thegazette.co.uk%2FLondon%2Fissue%2F58985%2Fpage%2F3105&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span></span> </li> <li id="cite_note-65"><span class="mw-cite-backlink"><b><a href="#cite_ref-65">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://genome.ch.bbc.co.uk/89c38da818d84670a3e6943f21a43a6d">"BBC Genome: World Snooker (1989)"</a>. 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Retrieved <span class="nowrap">13 February</span> 2024</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Area+Information+for+London%2C+W1D+4FA&amp;rft_id=https%3A%2F%2Fwww.streetcheck.co.uk%2Fpostcode%2Fw1d4fa&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span></span> </li> <li id="cite_note-compcomm1-67"><span class="mw-cite-backlink"><b><a href="#cite_ref-compcomm1_67-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1">"2: The organisation of the Post Office and its letter post operations". <a rel="nofollow" class="external text" href="http://webarchive.nationalarchives.gov.uk/20120119215329/http://www.competition-commission.org.uk/rep_pub/reports/1984/fulltext/180c02.pdf"><i>The Post Office Letter Post Service: a report on the letter post service of the Post Office in the Head Post Office areas of Glasgow, Belfast and Cardiff and in the numbered London postal districts</i></a> <span class="cs1-format">(PDF)</span>. <a href="/wiki/Competition_Commission" title="Competition Commission">Competition Commission</a>. 1984. pp.&#160;19–20. Archived from the original on 19 January 2012<span class="reference-accessdate">. Retrieved <span class="nowrap">28 June</span> 2014</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.atitle=2%3A+The+organisation+of+the+Post+Office+and+its+letter+post+operations&amp;rft.btitle=The+Post+Office+Letter+Post+Service%3A+a+report+on+the+letter+post+service+of+the+Post+Office+in+the+Head+Post+Office+areas+of+Glasgow%2C+Belfast+and+Cardiff+and+in+the+numbered+London+postal+districts&amp;rft.pages=19-20&amp;rft.pub=Competition+Commission&amp;rft.date=1984&amp;rft_id=http%3A%2F%2Fwww.competition-commission.org.uk%2Frep_pub%2Freports%2F1984%2Ffulltext%2F180c02.pdf&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span><span class="cs1-maint citation-comment"><code class="cs1-code">{{<a href="/wiki/Template:Cite_book" title="Template:Cite book">cite book</a>}}</code>: CS1 maint: unfit URL (<a href="/wiki/Category:CS1_maint:_unfit_URL" title="Category:CS1 maint: unfit URL">link</a>)</span></span> </li> <li id="cite_note-clear-68"><span class="mw-cite-backlink"><b><a href="#cite_ref-clear_68-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20141031014230/http://www.royalmail.com/sites/default/files/Guide_for_clear_addressing_August2012.pdf">"A guide for letter envelope design and clear addressing – How to get it right"</a> <span class="cs1-format">(PDF)</span>. <i><a href="/wiki/Royal_Mail" title="Royal Mail">Royal Mail</a></i>. August 2012. Archived from <a rel="nofollow" class="external text" href="http://www.royalmail.com/sites/default/files/Guide_for_clear_addressing_August2012.pdf">the original</a> <span class="cs1-format">(PDF)</span> on 31 October 2014<span class="reference-accessdate">. Retrieved <span class="nowrap">28 June</span> 2014</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Royal+Mail&amp;rft.atitle=A+guide+for+letter+envelope+design+and+clear+addressing+%E2%80%93+How+to+get+it+right&amp;rft.date=2012-08&amp;rft_id=http%3A%2F%2Fwww.royalmail.com%2Fsites%2Fdefault%2Ffiles%2FGuide_for_clear_addressing_August2012.pdf&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span></span> </li> <li id="cite_note-compcomm-69"><span class="mw-cite-backlink">^ <a href="#cite_ref-compcomm_69-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-compcomm_69-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-compcomm_69-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1">"2: The Organisation of the Post Office and its letter post operations". <a rel="nofollow" class="external text" href="https://web.archive.org/web/20110708151410/http://www.competition-commission.org.uk/rep_pub/reports/1984/fulltext/180c02.pdf"><i>The Post Office Letter Post Service: a report on the letter post service of the Post Office in the Head Post Office areas of Glasgow, Belfast and Cardiff and in the numbered London postal districts</i></a> <span class="cs1-format">(PDF)</span>. <a href="/wiki/Competition_Commission" title="Competition Commission">Competition Commission</a>. 1984. pp.&#160;19–20. Archived from the original on 8 July 2011<span class="reference-accessdate">. Retrieved <span class="nowrap">9 May</span> 2011</span>. <q>When the mail reaches its destination delivery office, it is sorted into postmen's walks. Each postman then 'sets in' his mail into the order of his walk. Where the posttown is an MLO, the primary and walk sorting processes may be performed by machine if the mail already bears code marks</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.atitle=2%3A+The+Organisation+of+the+Post+Office+and+its+letter+post+operations&amp;rft.btitle=The+Post+Office+Letter+Post+Service%3A+a+report+on+the+letter+post+service+of+the+Post+Office+in+the+Head+Post+Office+areas+of+Glasgow%2C+Belfast+and+Cardiff+and+in+the+numbered+London+postal+districts&amp;rft.pages=19-20&amp;rft.pub=Competition+Commission&amp;rft.date=1984&amp;rft_id=http%3A%2F%2Fwww.competition-commission.org.uk%2Frep_pub%2Freports%2F1984%2Ffulltext%2F180c02.pdf%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span><span class="cs1-maint citation-comment"><code class="cs1-code">{{<a href="/wiki/Template:Cite_book" title="Template:Cite book">cite book</a>}}</code>: CS1 maint: unfit URL (<a href="/wiki/Category:CS1_maint:_unfit_URL" title="Category:CS1 maint: unfit URL">link</a>)</span></span> </li> <li id="cite_note-70"><span class="mw-cite-backlink"><b><a href="#cite_ref-70">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20160313135623/http://www.royalmailgroup.com/%c2%a3120-million-further-investment-royal-mail-modernisation">"£120 Million Further Investment in Royal Mail Modernisation"</a>. <i><a href="/wiki/Royal_Mail" title="Royal Mail">Royal Mail</a></i>. 21 July 2009. Archived from <a rel="nofollow" class="external text" href="http://www.royalmailgroup.com/£120-million-further-investment-royal-mail-modernisation">the original</a> on 13 March 2016<span class="reference-accessdate">. Retrieved <span class="nowrap">28 June</span> 2014</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Royal+Mail&amp;rft.atitle=%C2%A3120+Million+Further+Investment+in+Royal+Mail+Modernisation&amp;rft.date=2009-07-21&amp;rft_id=http%3A%2F%2Fwww.royalmailgroup.com%2F%C2%A3120-million-further-investment-royal-mail-modernisation&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span></span> </li> <li id="cite_note-improve-71"><span class="mw-cite-backlink"><b><a href="#cite_ref-improve_71-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20140628165846/http://www.royalmail.com/personal/help-and-support/how-are-you-going-to-improve-the-way-you-sort-the-mail">"Modernisation – Transforming how we sort your mail"</a>. <i><a href="/wiki/Royal_Mail" title="Royal Mail">Royal Mail</a></i>. Archived from <a rel="nofollow" class="external text" href="http://www.royalmail.com/personal/help-and-support/how-are-you-going-to-improve-the-way-you-sort-the-mail">the original</a> on 28 June 2014<span class="reference-accessdate">. Retrieved <span class="nowrap">28 June</span> 2014</span>. <q>We're introducing new machines so postmen and women no longer need to sort most of their delivery manually. They will receive mail in the order of their route, so they can get straight out on delivery.</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Royal+Mail&amp;rft.atitle=Modernisation+%E2%80%93+Transforming+how+we+sort+your+mail&amp;rft_id=http%3A%2F%2Fwww.royalmail.com%2Fpersonal%2Fhelp-and-support%2Fhow-are-you-going-to-improve-the-way-you-sort-the-mail&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span></span> </li> <li id="cite_note-mailsort_faq-72"><span class="mw-cite-backlink"><b><a href="#cite_ref-mailsort_faq_72-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20140222062716/http://www.royalmailgroup.co.uk/discounts-payment/discounts-letters-uk/walksort/details">"Walksort"</a>. <i><a href="/wiki/Royal_Mail" title="Royal Mail">Royal Mail</a></i>. Archived from <a rel="nofollow" class="external text" href="http://www.royalmailgroup.co.uk/discounts-payment/discounts-letters-uk/walksort/details">the original</a> on 22 February 2014<span class="reference-accessdate">. Retrieved <span class="nowrap">28 June</span> 2014</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Royal+Mail&amp;rft.atitle=Walksort&amp;rft_id=http%3A%2F%2Fwww.royalmailgroup.co.uk%2Fdiscounts-payment%2Fdiscounts-letters-uk%2Fwalksort%2Fdetails&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span></span> </li> <li id="cite_note-pafstats1208-73"><span class="mw-cite-backlink">^ <a href="#cite_ref-pafstats1208_73-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-pafstats1208_73-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20170407184428/https://www.poweredbypaf.com/wp-content/uploads/2016/06/062016_PAF-Stats.pdf">"Postcode Address File statistics"</a> <span class="cs1-format">(PDF)</span>. <i>Royal Mail</i>. June 2016. Archived from <a rel="nofollow" class="external text" href="http://www.poweredbypaf.com/wp-content/uploads/2016/06/062016_PAF-Stats.pdf">the original</a> <span class="cs1-format">(PDF)</span> on 7 April 2017<span class="reference-accessdate">. Retrieved <span class="nowrap">21 June</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Royal+Mail&amp;rft.atitle=Postcode+Address+File+statistics&amp;rft.date=2016-06&amp;rft_id=http%3A%2F%2Fwww.poweredbypaf.com%2Fwp-content%2Fuploads%2F2016%2F06%2F062016_PAF-Stats.pdf&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span></span> </li> <li id="cite_note-ons20210127-74"><span class="mw-cite-backlink"><b><a href="#cite_ref-ons20210127_74-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.ons.gov.uk/aboutus/transparencyandgovernance/freedomofinformationfoi/numberofukpostcodeswhichonlyhaveonehousehold">"Number of UK postcodes which only have one household"</a>. <i>Office for National Statistics</i>. 27 January 2021<span class="reference-accessdate">. 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Office for National Statistics. 24 August 2023<span class="reference-accessdate">. Retrieved <span class="nowrap">9 December</span> 2023</span>. <q>Terminated postcodes are postcodes that are no longer used for mail delivery. The most frequent reasons for terminations are postcode reorganisations or the demolition/redevelopment of buildings. Terminated postcodes are occasionally re-used by Royal Mail but usually not before an elapsed period of two years. Terminated postcodes are retained in our postcode directories until or unless they are re-used.</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Open+Geography+Portal&amp;rft.atitle=A+Beginners+Guide+to+UK+Geography+%282023%29&amp;rft.date=2023-08-24&amp;rft_id=https%3A%2F%2Fgeoportal.statistics.gov.uk%2Fdatasets%2Fa-beginners-guide-to-uk-geography-2023%2Fabout&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span></span> </li> <li id="cite_note-76"><span class="mw-cite-backlink"><b><a href="#cite_ref-76">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFEdwards2013" class="citation web cs1">Edwards, Alex (23 January 2013). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20151016003852/http://www.listmark.net/blog/how-often-do-postcodes-change">"How often do postcodes change?"</a>. <i>Listmark</i>. Archived from <a rel="nofollow" class="external text" href="https://www.listmark.net/blog/how-often-do-postcodes-change">the original</a> on 16 October 2015<span class="reference-accessdate">. Retrieved <span class="nowrap">28 June</span> 2014</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Listmark&amp;rft.atitle=How+often+do+postcodes+change%3F&amp;rft.date=2013-01-23&amp;rft.aulast=Edwards&amp;rft.aufirst=Alex&amp;rft_id=https%3A%2F%2Fwww.listmark.net%2Fblog%2Fhow-often-do-postcodes-change&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span></span> </li> <li id="cite_note-mailsort_tech-77"><span class="mw-cite-backlink"><b><a href="#cite_ref-mailsort_tech_77-0">^</a></b></span> <span class="reference-text">Royal Mail, <i><a rel="nofollow" class="external text" href="https://web.archive.org/web/20020215141953/http://www.mailsorttechnical.com/downloads_mailsort.cfm">Mailsort Database 2007 Release 1</a></i>, (23 July 2007)</span> </li> <li id="cite_note-statistics-78"><span class="mw-cite-backlink">^ <a href="#cite_ref-statistics_78-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-statistics_78-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">National Statistics, <i><a rel="nofollow" class="external text" href="http://www.statistics.gov.uk/geography/downloads/NSPDVersionNotes.pdf">Postcode Directory Version Notes</a></i>, (2006) <a rel="nofollow" class="external text" href="https://web.archive.org/web/20090327152039/http://www.statistics.gov.uk/geography/downloads/NSPDVersionNotes.pdf">Archived</a> 27 March 2009 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>, <a rel="nofollow" class="external text" href="https://geoportal.statistics.gov.uk/datasets/national-statistics-postcode-lookup-may-2020">ONS</a></span> </li> <li id="cite_note-mail_paf-79"><span class="mw-cite-backlink"><b><a href="#cite_ref-mail_paf_79-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="ftp://ftp.royalmail.com/Downloads/public/ctf/rm/PAF_Digest_Dec_03.pdf">"Royal Mail guide to using the PAF file"</a> <span class="cs1-format">(PDF)</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Royal+Mail+guide+to+using+the+PAF+file&amp;rft_id=ftp%3A%2F%2Fftp.royalmail.com%2FDownloads%2Fpublic%2Fctf%2Frm%2FPAF_Digest_Dec_03.pdf&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span><sup class="noprint Inline-Template"><span style="white-space: nowrap;">&#91;<i><a href="/wiki/Wikipedia:Link_rot" title="Wikipedia:Link rot"><span title="&#160;Dead link tagged April 2017">permanent dead link</span></a></i><span style="visibility:hidden; color:transparent; padding-left:2px">&#8205;</span>&#93;</span></sup></span> </li> <li id="cite_note-ons-80"><span class="mw-cite-backlink"><b><a href="#cite_ref-ons_80-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.ons.gov.uk/methodology/geography/licences">"Licences"</a>. <i>Office for National Statistics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">31 July</span> 2017</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Office+for+National+Statistics&amp;rft.atitle=Licences&amp;rft_id=http%3A%2F%2Fwww.ons.gov.uk%2Fmethodology%2Fgeography%2Flicences&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span></span> </li> <li id="cite_note-insurance-81"><span class="mw-cite-backlink"><b><a href="#cite_ref-insurance_81-0">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.actuaries.org.uk/__data/assets/pdf_file/0018/103077/sm20080225.pdf">Richards, S. J. Applying survival models to pensioner mortality data, British Actuarial Journal</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20090108162136/http://www.actuaries.org.uk/__data/assets/pdf_file/0018/103077/sm20080225.pdf">Archived</a> 8 January 2009 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a></span> </li> <li id="cite_note-82"><span class="mw-cite-backlink"><b><a href="#cite_ref-82">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.bbc.co.uk/news/magazine-26367320">The march of the postcode battlers</a>, BBC News Magazine, 4 March 2014</span> </li> <li id="cite_note-83"><span class="mw-cite-backlink"><b><a href="#cite_ref-83">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation news cs1"><a rel="nofollow" class="external text" href="http://news.bbc.co.uk/1/hi/england/2668561.stm">"<span class="cs1-kern-left"></span>'Snobs' want to slough off postcode"</a>. BBC News. 17 January 2003<span class="reference-accessdate">. Retrieved <span class="nowrap">4 January</span> 2010</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.atitle=%27Snobs%27+want+to+slough+off+postcode&amp;rft.date=2003-01-17&amp;rft_id=http%3A%2F%2Fnews.bbc.co.uk%2F1%2Fhi%2Fengland%2F2668561.stm&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span></span> </li> <li id="cite_note-84"><span class="mw-cite-backlink"><b><a href="#cite_ref-84">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20080526111315/http://www.thisislocallondon.co.uk/archive/display.var.334327.0.cracking_the_codes_not_easy.php">"Cracking The Codes Not Easy"</a>. <i>This Is Local London</i>. 12 March 2002. Archived from <a rel="nofollow" class="external text" href="http://www.thisislocallondon.co.uk/archive/display.var.334327.0.cracking_the_codes_not_easy.php">the original</a> on 26 May 2008<span class="reference-accessdate">. Retrieved <span class="nowrap">4 January</span> 2010</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=This+Is+Local+London&amp;rft.atitle=Cracking+The+Codes+Not+Easy&amp;rft.date=2002-03-12&amp;rft_id=http%3A%2F%2Fwww.thisislocallondon.co.uk%2Farchive%2Fdisplay.var.334327.0.cracking_the_codes_not_easy.php&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span></span> </li> <li id="cite_note-85"><span class="mw-cite-backlink"><b><a href="#cite_ref-85">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFScrivens2005" class="citation news cs1">Scrivens, Louise (5 April 2005). <a rel="nofollow" class="external text" href="http://news.bbc.co.uk/1/hi/england/london/4409163.stm">"UK &#124; England &#124; London &#124; The power of the postcode"</a>. BBC News<span class="reference-accessdate">. Retrieved <span class="nowrap">4 January</span> 2010</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.atitle=UK+%26%23124%3B+England+%26%23124%3B+London+%26%23124%3B+The+power+of+the+postcode&amp;rft.date=2005-04-05&amp;rft.aulast=Scrivens&amp;rft.aufirst=Louise&amp;rft_id=http%3A%2F%2Fnews.bbc.co.uk%2F1%2Fhi%2Fengland%2Flondon%2F4409163.stm&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span></span> </li> <li id="cite_note-ONS_Geography_Guide-86"><span class="mw-cite-backlink"><b><a href="#cite_ref-ONS_Geography_Guide_86-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://geoportal.statistics.gov.uk/datasets/a-beginners-guide-to-uk-geography-2023/about">"A Beginners Guide to UK Geography (2023)"</a>. <i>Open Geography Portal</i>. Office for National Statistics. 24 August 2023<span class="reference-accessdate">. Retrieved <span class="nowrap">9 December</span> 2023</span>. <q>Straddling refers to the phenomenon of postcodes overlapping administrative (or other geographic) boundaries. This is because postcodes are defined for mail delivery only and take no account of other geographies. However, postcodes are frequently used for referencing data so straddling can create problems when we want to relate postcode-referenced data to higher geographies (for example electoral wards).</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Open+Geography+Portal&amp;rft.atitle=A+Beginners+Guide+to+UK+Geography+%282023%29&amp;rft.date=2023-08-24&amp;rft_id=https%3A%2F%2Fgeoportal.statistics.gov.uk%2Fdatasets%2Fa-beginners-guide-to-uk-geography-2023%2Fabout&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APostcodes+in+the+United+Kingdom" class="Z3988"></span></span> </li> </ol></div></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Postal_services_in_the_United_Kingdom" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Postal_services_in_the_United_Kingdom" title="Template:Postal services in the United Kingdom"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Postal_services_in_the_United_Kingdom" title="Template talk:Postal services in the United Kingdom"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Postal_services_in_the_United_Kingdom" title="Special:EditPage/Template:Postal services in the United Kingdom"><abbr title="Edit this 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href="/wiki/Post_town" title="Post town">Post town</a></li> <li><a href="/wiki/List_of_post_towns_in_the_United_Kingdom" title="List of post towns in the United Kingdom">List of post towns</a></li> <li><a href="/wiki/London_postal_district" title="London postal district">London postal district</a></li> <li><a href="/wiki/Postcode_Address_File" title="Postcode Address File">Postcode Address File</a></li> <li><a href="/wiki/Mailsort" title="Mailsort">Mailsort</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Organisations<br /></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/British_Forces_Post_Office" title="British Forces Post Office">British Forces Post Office</a></li> <li><a href="/wiki/PayPoint" title="PayPoint">Collect+</a></li> <li><a href="/wiki/DHL" title="DHL">DHL</a></li> <li><a href="/wiki/DX_Group" title="DX Group">DX</a></li> <li><a href="/wiki/Hermes_Europe" title="Hermes Europe">Evri</a></li> <li><a href="/wiki/FedEx" title="FedEx">FedEx</a></li> <li><a href="/wiki/Geopost" title="Geopost">Geopost</a></li> <li><a href="/wiki/InPost" title="InPost">InPost</a></li> <li><a href="/wiki/Parcelforce" title="Parcelforce">Parcelforce</a></li> <li><a href="/wiki/Post_Office_Limited" title="Post Office Limited">Post Office</a></li> <li><a href="/wiki/Royal_Mail" title="Royal Mail">Royal Mail</a></li> <li><a href="/wiki/TNT_Express" title="TNT Express">TNT</a></li> <li><a href="/wiki/UK_Mail" title="UK Mail">UK Mail</a></li> <li><a href="/wiki/United_Parcel_Service" title="United Parcel Service">UPS</a></li> <li><a href="/wiki/Whistl" title="Whistl">Whistl</a></li> <li><a href="/wiki/Yodel_(company)" title="Yodel (company)">Yodel</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Philately</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Postage_stamps_and_postal_history_of_Great_Britain" title="Postage stamps and postal history of Great Britain">Postage stamps and postal history</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Infrastructure</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Royal_Mail#Mail_centres" title="Royal Mail">Mail centres</a></li> <li><a href="/wiki/Royal_Mail#Integrated_mail_processing" title="Royal Mail">Integrated mail processing</a></li> <li><a href="/wiki/Royal_Mail#Intelligent_letter_sorting_machines" title="Royal Mail">Intelligent Letter Sorting Machines</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div><small><a href="/wiki/British_Overseas_Territories" title="British Overseas Territories">British Overseas Territories</a> and <a href="/wiki/Crown_Dependencies" title="Crown Dependencies">Crown Dependencies</a> have <a href="/wiki/List_of_postal_entities" title="List of postal entities">different operators</a> and regulatory arrangements.</small></div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Postal_codes_in_Europe" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a 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title="Postal codes in Armenia">Armenia</a></li> <li><a href="/wiki/Postal_codes_in_Austria" title="Postal codes in Austria">Austria</a></li> <li><a href="/wiki/Postal_codes_in_Azerbaijan" title="Postal codes in Azerbaijan">Azerbaijan</a></li> <li><a href="/w/index.php?title=Postal_codes_in_Belarus&amp;action=edit&amp;redlink=1" class="new" title="Postal codes in Belarus (page does not exist)">Belarus</a></li> <li><a href="/wiki/Postal_codes_in_Belgium" title="Postal codes in Belgium">Belgium</a></li> <li><a href="/w/index.php?title=Postal_codes_in_Bosnia_and_Herzegovina&amp;action=edit&amp;redlink=1" class="new" title="Postal codes in Bosnia and Herzegovina (page does not exist)">Bosnia and Herzegovina</a></li> <li><a href="/wiki/Postal_codes_in_Bulgaria" title="Postal codes in Bulgaria">Bulgaria</a></li> <li><a href="/wiki/Postal_codes_in_Croatia" title="Postal codes in Croatia">Croatia</a></li> <li><a href="/wiki/Postal_codes_in_Cyprus" title="Postal codes in Cyprus">Cyprus</a></li> <li><a href="/wiki/Postal_codes_in_the_Czech_Republic" title="Postal codes in the Czech Republic">Czech Republic</a></li> <li><a href="/wiki/Postal_codes_in_Denmark" title="Postal codes in Denmark">Denmark</a></li> <li><a href="/w/index.php?title=Postal_codes_in_Estonia&amp;action=edit&amp;redlink=1" class="new" title="Postal codes in Estonia (page does not exist)">Estonia</a></li> <li><a href="/wiki/Postal_codes_in_Finland" title="Postal codes in Finland">Finland</a></li> <li><a href="/wiki/Postal_codes_in_France" title="Postal codes in France">France</a></li> <li><a href="/w/index.php?title=Postal_codes_in_Georgia_(country)&amp;action=edit&amp;redlink=1" class="new" title="Postal codes in Georgia (country) (page does not exist)">Georgia</a></li> <li><a href="/wiki/Postal_codes_in_Germany" title="Postal codes in Germany">Germany</a></li> <li><a href="/wiki/Postal_codes_in_Greece" title="Postal codes in Greece">Greece</a></li> <li><a href="/wiki/Postal_codes_in_Hungary" title="Postal codes in Hungary">Hungary</a></li> <li><a href="/wiki/Postal_codes_in_Iceland" title="Postal codes in Iceland">Iceland</a></li> <li><a href="/wiki/Postal_codes_in_the_Republic_of_Ireland" class="mw-redirect" title="Postal codes in the Republic of Ireland">Ireland</a></li> <li class="mw-empty-elt"></li> <li><a href="/wiki/Postal_codes_in_Italy" class="mw-redirect" title="Postal codes in Italy">Italy</a></li> <li><a href="/w/index.php?title=Postal_codes_in_Kazakhstan&amp;action=edit&amp;redlink=1" class="new" title="Postal codes in Kazakhstan (page does not exist)">Kazakhstan</a></li> <li><a href="/wiki/Postal_codes_in_Latvia" title="Postal codes in Latvia">Latvia</a></li> <li><a href="/wiki/Postal_codes_in_Liechtenstein" class="mw-redirect" title="Postal codes in Liechtenstein">Liechtenstein</a></li> <li><a href="/wiki/Postal_codes_in_Lithuania" title="Postal codes in Lithuania">Lithuania</a></li> <li><a href="/wiki/Postal_codes_in_Luxembourg" title="Postal codes in Luxembourg">Luxembourg</a></li> <li><a href="/wiki/Postal_codes_in_Malta" title="Postal codes in Malta">Malta</a></li> <li><a href="/wiki/Postal_codes_in_Moldova" title="Postal codes in Moldova">Moldova</a></li> <li><a href="/wiki/Postal_codes_in_Monaco" class="mw-redirect" title="Postal codes in Monaco">Monaco</a></li> <li><a href="/w/index.php?title=Postal_codes_in_Montenegro&amp;action=edit&amp;redlink=1" class="new" title="Postal codes in Montenegro (page does not exist)">Montenegro</a></li> <li><a href="/wiki/Postal_codes_in_the_Netherlands" title="Postal codes in the Netherlands">Netherlands</a></li> <li><a href="/wiki/Postal_codes_in_North_Macedonia" title="Postal codes in North Macedonia">North Macedonia</a></li> <li><a href="/wiki/Postal_codes_in_Norway" title="Postal codes in Norway">Norway</a></li> <li><a href="/wiki/Postal_codes_in_Poland" title="Postal codes in Poland">Poland</a></li> <li><a href="/wiki/Postal_codes_in_Portugal" title="Postal codes in Portugal">Portugal</a></li> <li><a href="/wiki/Postal_codes_in_Romania" title="Postal codes in Romania">Romania</a></li> <li><a href="/wiki/Postal_codes_in_Russia" title="Postal codes in Russia">Russia</a></li> <li><a href="/wiki/Postal_codes_in_San_Marino" class="mw-redirect" title="Postal codes in San Marino">San Marino</a></li> <li><a href="/wiki/Postal_codes_in_Serbia" title="Postal codes in Serbia">Serbia</a></li> <li><a href="/wiki/Postal_codes_in_Slovakia" title="Postal codes in Slovakia">Slovakia</a></li> <li><a href="/wiki/Postal_codes_in_Slovenia" title="Postal codes in Slovenia">Slovenia</a></li> <li><a href="/wiki/Postal_codes_in_Spain" title="Postal codes in Spain">Spain</a></li> <li><a href="/wiki/Postal_codes_in_Sweden" title="Postal codes in Sweden">Sweden</a></li> <li><a href="/wiki/Postal_codes_in_Switzerland" class="mw-redirect" title="Postal codes in Switzerland">Switzerland</a></li> <li><a href="/wiki/Postal_codes_in_Turkey" title="Postal codes in Turkey">Turkey</a></li> <li><a href="/wiki/Postal_codes_in_Ukraine" title="Postal codes in Ukraine">Ukraine</a></li> <li><a href="/wiki/Postal_codes_in_the_United_Kingdom" class="mw-redirect" title="Postal codes in the United Kingdom">United Kingdom</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">States with limited<br />recognition</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=Postal_codes_in_Abkhazia&amp;action=edit&amp;redlink=1" class="new" title="Postal codes in Abkhazia (page does not exist)">Abkhazia</a></li> <li><a href="/wiki/Postal_codes_in_Kosovo" title="Postal codes in Kosovo">Kosovo</a></li> <li><a href="/w/index.php?title=Postal_codes_in_Northern_Cyprus&amp;action=edit&amp;redlink=1" class="new" title="Postal codes in Northern Cyprus (page does not exist)">Northern Cyprus</a></li> <li><a href="/w/index.php?title=Postal_codes_in_South_Ossetia&amp;action=edit&amp;redlink=1" class="new" title="Postal codes in South Ossetia (page does not exist)">South Ossetia</a></li> <li><a href="/w/index.php?title=Postal_codes_in_Transnistria&amp;action=edit&amp;redlink=1" class="new" title="Postal codes in Transnistria (page does not exist)">Transnistria</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Dependencies and<br />other entities</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=Postal_codes_in_%C3%85land&amp;action=edit&amp;redlink=1" class="new" title="Postal codes in Åland (page does not exist)">Åland</a></li> <li><a href="/wiki/Postal_codes_in_the_Faroe_Islands" title="Postal codes in the Faroe Islands">Faroe Islands</a></li> <li><a href="/wiki/Postal_codes_in_Gibraltar" class="mw-redirect" title="Postal codes in Gibraltar">Gibraltar</a></li> <li><a href="/wiki/Postal_codes_in_Guernsey" class="mw-redirect" title="Postal codes in Guernsey">Guernsey</a></li> <li><a href="/wiki/Postal_codes_in_the_Isle_of_Man" class="mw-redirect" title="Postal codes in the Isle of Man">Isle of Man</a></li> <li><a href="/wiki/Postal_codes_in_Jersey" class="mw-redirect" title="Postal codes in Jersey">Jersey</a></li> <li><a href="/wiki/Postal_codes_in_Svalbard" class="mw-redirect" title="Postal codes in Svalbard">Svalbard</a></li></ul> </div></td></tr></tbody></table></div> <!-- NewPP limit report Parsed by mw‐api‐ext.codfw.main‐59bc7696‐cwbfv Cached time: 20241128135610 Cache expiry: 2592000 Reduced expiry: false Complications: [vary‐revision‐sha1, show‐toc] CPU time usage: 1.218 seconds Real time usage: 1.538 seconds Preprocessor visited node count: 16134/1000000 Post‐expand include size: 184804/2097152 bytes Template argument size: 11009/2097152 bytes Highest expansion depth: 23/100 Expensive parser function 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