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<li id="toc-Overview" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Overview"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>Overview</span> </div> </a> <ul id="toc-Overview-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-1985_to_2005" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#1985_to_2005"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2</span> <span>1985 to 2005</span> </div> </a> <ul id="toc-1985_to_2005-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Telefónica_acquisition" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Telefónica_acquisition"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.3</span> <span>Telefónica acquisition</span> </div> </a> <ul id="toc-Telefónica_acquisition-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Since_2007" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Since_2007"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.4</span> <span>Since 2007</span> </div> </a> <ul id="toc-Since_2007-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Sale_attempts" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Sale_attempts"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.5</span> <span>Sale attempts</span> </div> </a> <ul id="toc-Sale_attempts-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Merger_with_Virgin_Media" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Merger_with_Virgin_Media"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.6</span> <span>Merger with Virgin Media</span> </div> </a> <ul id="toc-Merger_with_Virgin_Media-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Outages" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Outages"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.7</span> <span>Outages</span> </div> </a> <ul id="toc-Outages-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Network" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Network"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Network</span> </div> </a> <ul id="toc-Network-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Former_operations" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Former_operations"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Former operations</span> </div> </a> <button aria-controls="toc-Former_operations-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 Former operations subsection</span> </button> <ul id="toc-Former_operations-sublist" class="vector-toc-list"> <li id="toc-Fixed_line_and_broadband" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Fixed_line_and_broadband"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Fixed line and broadband</span> </div> </a> <ul id="toc-Fixed_line_and_broadband-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Payment_system" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Payment_system"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Payment system</span> </div> </a> <ul id="toc-Payment_system-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Marketing" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Marketing"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Marketing</span> </div> </a> <button aria-controls="toc-Marketing-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 Marketing subsection</span> </button> <ul id="toc-Marketing-sublist" class="vector-toc-list"> <li id="toc-Branding" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Branding"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Branding</span> </div> </a> <ul id="toc-Branding-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Sponsorships" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Sponsorships"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2</span> <span>Sponsorships</span> </div> </a> <ul id="toc-Sponsorships-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Naming_rights" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Naming_rights"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.3</span> <span>Naming rights</span> </div> </a> <ul id="toc-Naming_rights-sublist" class="vector-toc-list"> <li id="toc-Academy_Music_Group_venues" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Academy_Music_Group_venues"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.3.1</span> <span>Academy Music Group venues</span> </div> </a> <ul id="toc-Academy_Music_Group_venues-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> </ul> </li> <li id="toc-Environmental_record" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Environmental_record"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Environmental record</span> </div> </a> <ul id="toc-Environmental_record-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Controversy" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Controversy"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Controversy</span> </div> </a> <ul id="toc-Controversy-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" 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href="https://sv.wikipedia.org/wiki/O2_(f%C3%B6retag)" title="O2 (företag) – Swedish" lang="sv" hreflang="sv" data-title="O2 (företag)" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/O2_(Birle%C5%9Fik_Krall%C4%B1k)" title="O2 (Birleşik Krallık) – Turkish" lang="tr" hreflang="tr" data-title="O2 (Birleşik Krallık)" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/O2_(%E8%8B%B1%E5%9C%8B)" title="O2 (英國) – Chinese" lang="zh" hreflang="zh" data-title="O2 (英國)" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span 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role="note" class="hatnote navigation-not-searchable">This article is about the British mobile network operator. For the related brand owned by Telefónica, see <a href="/wiki/O2_(brand)" title="O2 (brand)">O2 (brand)</a>.</div><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">British telecommunications provider</div> <p class="mw-empty-elt"> </p> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><style data-mw-deduplicate="TemplateStyles:r1242257876">.mw-parser-output .ib-company .infobox-label{padding-right:0.5em}.mw-parser-output .ib-company .infobox-data,.mw-parser-output .ib-company .infobox-below{line-height:1.35em}.mw-parser-output .ib-company-logo img{background-color:#f8f9fa}.mw-parser-output .ib-company-locality,.mw-parser-output .ib-company-country{display:inline}</style><table class="infobox ib-company vcard"><caption class="infobox-title fn org" style="font-size: 125%;">Telefonica UK Limited</caption><tbody><tr><td colspan="2" class="infobox-image ib-company-logo logo"><span typeof="mw:File"><a href="/wiki/File:O2.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/60/O2.svg/120px-O2.svg.png" decoding="async" width="120" height="118" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/60/O2.svg/180px-O2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/60/O2.svg/240px-O2.svg.png 2x" data-file-width="225" data-file-height="222" /></a></span></td></tr><tr><th scope="row" class="infobox-label"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;"><a href="/wiki/Trade_name" title="Trade name">Trade name</a></div></th><td class="infobox-data"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist"><ul><li>O2 <span style="font-size: 85%;">(2002–present)</span></li><li>BT Cellnet <span style="font-size: 85%;">(1999–2002)</span></li><li>Cellnet <span style="font-size: 85%;">(1985–1999)</span></li></ul></div></td></tr><tr><th scope="row" class="infobox-label">Formerly</th><td class="infobox-data nickname"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409" /><div class="plainlist"><ul><li>Telecom Securicor Cellular Radio Limited <span style="font-size: 85%;">(1985–1999)</span></li><li>BT Cellnet Limited <span style="font-size: 85%;">(1999–2002)</span></li><li>O2 (UK) Limited <span style="font-size: 85%;">(2002–2008)</span></li><li>Telefónica O2 UK Limited <span style="font-size: 85%;">(2008–2011)</span></li><li>Telefonica O2 UK Limited <span style="font-size: 85%;">(2011)</span><sup id="cite_ref-companieshouse_1-0" class="reference"><a href="#cite_note-companieshouse-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></li></ul></div></td></tr><tr><th scope="row" class="infobox-label">Company type</th><td class="infobox-data category"><a href="/wiki/Subsidiary" title="Subsidiary">Subsidiary</a></td></tr><tr><th scope="row" class="infobox-label">Industry</th><td class="infobox-data category"><a href="/wiki/Telecommunication" class="mw-redirect" title="Telecommunication">Telecommunications</a></td></tr><tr><th scope="row" class="infobox-label">Founded</th><td class="infobox-data">1984 (as Cellnet)</td></tr><tr><th scope="row" class="infobox-label">Founder</th><td class="infobox-data agent">John Carrington</td></tr><tr><th scope="row" class="infobox-label">Headquarters</th><td class="infobox-data label"><a href="/wiki/Reading,_Berkshire" title="Reading, Berkshire">Reading</a>, England</td></tr><tr><th scope="row" class="infobox-label"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">Area served</div></th><td class="infobox-data"><a href="/wiki/United_Kingdom" title="United Kingdom">United Kingdom</a></td></tr><tr><th scope="row" class="infobox-label"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">Key people</div></th><td class="infobox-data agent">Lutz Schüler (<a href="/wiki/Chief_executive_officer" title="Chief executive officer">CEO</a>)</td></tr><tr><th scope="row" class="infobox-label">Revenue</th><td class="infobox-data"><span typeof="mw:File"><span title="Increase"><img alt="Increase" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Increase2.svg/20px-Increase2.svg.png" decoding="async" width="11" height="11" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Increase2.svg/40px-Increase2.svg.png 2x" data-file-width="300" data-file-height="300" /></span></span> <a href="/wiki/Pound_sterling" title="Pound sterling">£</a>6.510 billion (2017)<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Parent_company" class="mw-redirect" title="Parent company">Parent</a></th><td class="infobox-data"><a href="/wiki/Virgin_Media_O2" title="Virgin Media O2">Virgin Media O2</a></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Subsidiary" title="Subsidiary">Subsidiaries</a></th><td class="infobox-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409" /><div class="plainlist"><ul><li><a href="/wiki/Giffgaff" title="Giffgaff">giffgaff</a></li><li><a href="/wiki/Tesco_Mobile" title="Tesco Mobile">Tesco Mobile</a> (50%)</li></ul></div></td></tr><tr><th scope="row" class="infobox-label">Website</th><td class="infobox-data"><span class="url"><a rel="nofollow" class="external text" href="https://o2.co.uk/">o2<wbr />.co<wbr />.uk</a></span> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q7072245#P856" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></td></tr></tbody></table> <p><b>Telefonica UK Limited</b>,<sup id="cite_ref-companieshouse_1-1" class="reference"><a href="#cite_note-companieshouse-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Trading_as" class="mw-redirect" title="Trading as">trading as</a> <b>O2</b> (stylised as <b>O<sub>2</sub></b>), is a British <a href="/wiki/List_of_telephone_operating_companies#United_Kingdom" class="mw-redirect" title="List of telephone operating companies">telecommunications services provider</a>, headquartered in <a href="/wiki/Reading,_Berkshire" title="Reading, Berkshire">Reading</a>, England which operates under the <a href="/wiki/O2_(brand)" title="O2 (brand)">O2 brand</a>.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> It is owned by <a href="/wiki/Virgin_Media_O2" title="Virgin Media O2">VMED O2 UK Limited</a>, a 50:50 joint venture between <a href="/wiki/Telef%C3%B3nica" title="Telefónica">Telefónica</a> and <a href="/wiki/Liberty_Global" title="Liberty Global">Liberty Global</a>. O2 is the UK's <a href="/wiki/List_of_mobile_network_operators_of_Europe#United_Kingdom" class="mw-redirect" title="List of mobile network operators of Europe">largest mobile network operator</a>, with about 23.2<span class="nowrap"> </span>million subscribers as of December 2024<sup class="plainlinks noexcerpt noprint asof-tag update" style="display:none;"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=O2_(UK)&action=edit">[update]</a></sup>.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <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=O2_(UK)&action=edit&section=1" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Overview">Overview</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=2" title="Edit section: Overview"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The company was formed in 1984 as Cellnet,<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> a 60:40 <a href="/wiki/Joint_venture" title="Joint venture">joint venture</a> between <a href="/wiki/BT_Group" title="BT Group">BT Group</a> and <a href="/wiki/Securicor" title="Securicor">Securicor</a>. Cellnet was one of the first two mobile networks in the UK, alongside Vodafone. In 1999, BT acquired Securicor's share of Cellnet and the company was later rebranded as BT Cellnet.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> In June 2000, BT Cellnet launched the world's first commercial <a href="/wiki/General_Packet_Radio_Service" class="mw-redirect" title="General Packet Radio Service">General Packet Radio Service</a> (GPRS) service.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> The company, together with BT Group's mobile telecommunications businesses in Germany, Ireland and the Netherlands, was part of the BT Wireless division. This was spun off from the BT Group in 2002 to form a new holding company, mmO2 plc, which introduced the new "O2" brand for the businesses. In 2005, mmO2 plc was renamed O2 plc.<sup id="cite_ref-:0_8-0" class="reference"><a href="#cite_note-:0-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p> O₂ plc was purchased by the Spanish telecommunications company Telefónica in 2006 for £18 billion. Under the terms of the acquisition, Telefónica agreed to retain the "O₂" brand and the company's UK headquarters.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> O2 plc was renamed Telefónica O₂ Europe in 2007 and then Telefónica Europe plc in 2008,<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> and became the holding company for Telefónica's operations in the UK.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup></p><figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:BT_Cellnet_logo.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/en/thumb/a/af/BT_Cellnet_logo.svg/220px-BT_Cellnet_logo.svg.png" decoding="async" width="220" height="84" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/a/af/BT_Cellnet_logo.svg/330px-BT_Cellnet_logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/a/af/BT_Cellnet_logo.svg/440px-BT_Cellnet_logo.svg.png 2x" data-file-width="501" data-file-height="191" /></a><figcaption>BT Cellnet logo from 1999 to 2002</figcaption></figure> <p>In May 2020, Telefónica reached an agreement with <a href="/wiki/Liberty_Global" title="Liberty Global">Liberty Global</a> to merge the company with <a href="/wiki/Virgin_Media" title="Virgin Media">Virgin Media</a>. On 1 June 2021, O2 and Virgin Media formally merged to create <a href="/wiki/Virgin_Media_O2" title="Virgin Media O2">Virgin Media O2</a> as a joint venture between Telefónica and Liberty Global.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="1985_to_2005">1985 to 2005</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=3" title="Edit section: 1985 to 2005"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Between 1985 and 1989, John Carrington was the <a href="/wiki/Chief_executive_officer" title="Chief executive officer">CEO</a> of <a href="/wiki/BT_Group" title="BT Group">British Telecom</a>'s Mobile Division and the chairman of Cellnet. It was during this period that Carrington launched Cellnet's first cellular service, following innovative development work by BT Spectrum, who built a chain of cells between London Heathrow and <a href="/wiki/BT_Tower" title="BT Tower">BT Tower</a> in January 1985.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p><p>Cellnet was established in 1985 as a joint subsidiary of BTCR, British Telecom Cellular Radio, providing the engineering knowledge, and TSCR, Telecom Securicor Cellular Radio Limited, providing the financial investment, resulting in a 60:40 <a href="/wiki/Joint_venture" title="Joint venture">joint venture</a> between <a href="/wiki/BT_Group" title="BT Group">British Telecommunications</a> and <a href="/wiki/Securicor" title="Securicor">Securicor</a>. </p><p>The equipment used was primarily a <a href="/wiki/Motorola" title="Motorola">Motorola</a> system designed for the American <a href="/wiki/Advanced_Mobile_Phone_System" title="Advanced Mobile Phone System">Advanced Mobile Phone System</a> (AMPS) and had to be adapted for the British system, <a href="/wiki/Total_Access_Communication_System" title="Total Access Communication System">Total Access Communication</a> (TACS). The system was so unready that the initials that Motorola used to designate the network exchanges, EMX, became popularly known as 'European Motorola Experiment' and the exchanges had to be programmed in machine code loaded by tape. In the early days of the system, mobile calls cost £1 per minute.<sup id="cite_ref-secretdeal_16-0" class="reference"><a href="#cite_note-secretdeal-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> </p><p>After months of rumours and speculation, <a href="/wiki/Peter_Bonfield" title="Peter Bonfield">Peter Bonfield</a> publicly announced on 27 July 1999 that BT had agreed to buy Securicor's 40 per cent share of Cellnet for £3.15 billion. Cellnet had five million customers at the time of its acquisition.<sup id="cite_ref-secretdeal_16-1" class="reference"><a href="#cite_note-secretdeal-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> The company was rebranded as BT Cellnet in 2000, and it became a part of BT Wireless, a group of companies owned by BT. </p><p>BT announced on 3 September 2001 that the BT Wireless business would be spun off from the main group as a newly listed holding company, mmO2 plc, operating under the "O2" brand.<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> Shareholders approved the plan at an <a href="/wiki/Extraordinary_general_meeting" title="Extraordinary general meeting">extraordinary general meeting</a> on 23 October 2001.<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> BT Cellnet relaunched as "O2" on 18 June 2002, along with other former BT subsidiaries: <a href="/wiki/O2_(Ireland)" title="O2 (Ireland)">Esat Digifone</a> in Ireland, <a href="/wiki/Telef%C3%B3nica_Germany" title="Telefónica Germany">Viag Interkom</a> in Germany and <a href="/wiki/Telfort" title="Telfort">Telfort Mobiel</a> in the Netherlands. </p><p>The rebranding was supported by a European advertising campaign, which began on 16 April 2002, across all four countries, at a cost of £130 million. The main launch campaign ran from 18 June and was developed by Vallance Carruthers Coleman Priest, working alongside brand consultancy <a href="/wiki/Lambie-Nairn" class="mw-redirect" title="Lambie-Nairn">Lambie-Nairn</a>, creators of the "O2" brand identity.<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> </p><p>In March 2005, mmO2 restructured its shares and the company was relisted as O2 plc.<sup id="cite_ref-:0_8-1" class="reference"><a href="#cite_note-:0-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Telefónica_acquisition"><span id="Telef.C3.B3nica_acquisition"></span>Telefónica acquisition</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=4" title="Edit section: Telefónica acquisition"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>On 30 November 2005, O2 agreed to a takeover by <a href="/wiki/Telef%C3%B3nica" title="Telefónica">Telefónica</a>, a Spanish telecommunications company, for £17.7 billion (£2 per share) in cash. It went through finally in 2006.<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> According to the merger announcement, O2 retained its name and continued to be based in the United Kingdom, keeping both the brand and the management team. The merger became unconditional on 23 January 2006. </p><p>Following the acquisition of O2, Telefónica undertook a corporate organisational change that saw the merging of its fixed and mobile businesses in Spain, and the transfer of Telefónica's non-Spanish European telecommunications properties into the O2 brand. Thus, the <a href="/wiki/%C4%8Cesk%C3%BD_Telecom" class="mw-redirect" title="Český Telecom">Český Telecom</a> and <a href="/wiki/Eurotel" title="Eurotel">Eurotel</a> operations in the Czech Republic as well as the <a href="/wiki/Telef%C3%B3nica_Germany" title="Telefónica Germany">Telefónica Deutschland</a> business in Germany were brought under the control of O2, which retained its UK-registered public company status with its own board of directors and corporate structures and processes. Telefónica chose to keep its existing mobile phone operations in the rest of the world under the brand <a href="/wiki/Movistar" title="Movistar">Movistar</a>. This name is used in Spain and in most of the Latin American countries, operated by a separate management team.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (September 2020)">citation needed</span></a></i>]</sup> </p> <div class="mw-heading mw-heading3"><h3 id="Since_2007">Since 2007</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=5" title="Edit section: Since 2007"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>On 15 July 2009, O2 entered the <a href="/wiki/Financial_services" title="Financial services">financial services</a> industry with the launch of <a href="/wiki/O2_Money" title="O2 Money">O2 Money</a>, which was the first step in the process of incorporating financial services into <a href="/wiki/Mobile_phone" title="Mobile phone">mobile phones</a>. Future plans included manufacturing <a href="/wiki/Near_Field_Communication" class="mw-redirect" title="Near Field Communication">Near Field Communication</a> (NFC) technology in mobile phones in the United Kingdom.<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> </p><p>O2 and <a href="/wiki/Vodafone_UK" title="Vodafone UK">Vodafone</a> signed a deal in June 2012 which will see the two companies 'pool' their network technology, creating a single national grid of 18,500 <a href="/wiki/Mobile_phone_transmitter" class="mw-redirect" title="Mobile phone transmitter">transmitter</a> sites. Both networks will continue to carry their own independent mobile spectrum.<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Sale_attempts">Sale attempts</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=6" title="Edit section: Sale attempts"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>On 24 November 2014, it was reported that BT were in talks to buy back O2, while at the same time BT confirmed that it was also in talks to buy <a href="/wiki/EE_(telecommunications)" title="EE (telecommunications)">EE</a>.<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> BT subsequently entered into exclusive talks with EE.<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> </p><p>On 23 January 2015, <a href="/wiki/Li_Ka-shing" title="Li Ka-shing">Li Ka-shing</a>, owner of <a href="/wiki/Hutchison_Whampoa" title="Hutchison Whampoa">Hutchison Whampoa</a> and the <a href="/wiki/Hutchison_3G" class="mw-redirect" title="Hutchison 3G">Three</a> network (which operates in the UK) entered talks to buy O2 for up to £10.25bn ($15.4bn). However, the move faced scrutiny from competition regulators as it would reduce the number of major operators in the UK, when combined with a potential purchase of EE by BT, from four to three.<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> Hutchison Whampoa had previously acquired the O2 network from Telefónica in the Republic of Ireland, which it has since merged into Three.<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> The combined network would have surpassed EE to create the largest mobile network in the UK.<sup id="cite_ref-Hutchison_27-0" class="reference"><a href="#cite_note-Hutchison-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> </p><p>The deal was subject to regulatory approval.<sup id="cite_ref-Hutchison_27-1" class="reference"><a href="#cite_note-Hutchison-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> The European Commission decided in December 2015 not to refer Hutchison's takeover of Telefónica's O2 business in the UK to the country's <a href="/wiki/Competition_and_Markets_Authority" title="Competition and Markets Authority">Competition and Markets Authority</a>,<sup id="cite_ref-28" class="reference"><a href="#cite_note-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup> which had asked to be allowed to investigate the planned acquisition, arguing that as the British competition regulator, it – and not the Commission – should have the right to rule on the transaction, which it argued 'threatens to affect significantly competition in the UK retail mobile and wholesale mobile markets', claiming that its investigation of the takeover would 'avoid duplication and fragmentation'.<sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup> On 11 May 2016, the European Commission officially blocked the tie-up of O2 and Three, arguing that the merger would reduce consumer choice and lead to a higher cost of services.<sup id="cite_ref-bbc-3o2blocked_30-0" class="reference"><a href="#cite_note-bbc-3o2blocked-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup> </p><p>In September 2016, Telefónica appointed a number of investment banks to sell the business to investors, ahead of a stock market flotation.<sup id="cite_ref-31" class="reference"><a href="#cite_note-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Merger_with_Virgin_Media">Merger with Virgin Media</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=7" title="Edit section: Merger with Virgin Media"><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">Main article: <a href="/wiki/Virgin_Media_O2" title="Virgin Media O2">Virgin Media O2</a></div> <p>On 7 May 2020, it was announced that Telefónica had agreed to merge Telefonica UK with <a href="/wiki/Liberty_Global" title="Liberty Global">Liberty Global</a> subsidiary <a href="/wiki/Virgin_Media" title="Virgin Media">Virgin Media</a>, subject to approval, into a 50/50 joint venture. Subject to approval, the merger was slated for the middle of 2021.<sup id="cite_ref-32" class="reference"><a href="#cite_note-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-33" class="reference"><a href="#cite_note-33"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup> The merger was completed on 1 June 2021 with the newly merged company positioning itself as competition with BT.<sup id="cite_ref-34" class="reference"><a href="#cite_note-34"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Outages">Outages</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=8" title="Edit section: Outages"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In July 2012, O2 had to apologise to almost 8 million customers after a <a href="/wiki/Network_switching_subsystem" title="Network switching subsystem">network switching subsystem</a> failure led to a 24-hour blackout of the service across the UK and Ireland.<sup id="cite_ref-35" class="reference"><a href="#cite_note-35"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup> The problem, which prevented a third of its customers' phones registering on the network, also affected customers of <a href="/wiki/Mobile_virtual_network_operator" title="Mobile virtual network operator">MVNO</a> networks <a href="/wiki/Tesco_Mobile" title="Tesco Mobile">Tesco Mobile</a> and <a href="/wiki/Giffgaff" title="Giffgaff">Giffgaff</a>.<sup id="cite_ref-36" class="reference"><a href="#cite_note-36"><span class="cite-bracket">[</span>36<span class="cite-bracket">]</span></a></sup> To apologise for this, O2 announced that it would be giving hundreds of thousands of its customers compensation for the issue.<sup id="cite_ref-37" class="reference"><a href="#cite_note-37"><span class="cite-bracket">[</span>37<span class="cite-bracket">]</span></a></sup> Pay monthly customers received a 10 per cent discount on their bill whereas Pay As You Go users received a 10 per cent refund on their first top up in September. </p><p>On 6 December 2018, a major disruption to the O2 network, caused by faulty software, left up to 32 million users (including those on MVNOs) without access to data services (on both 3G and 4G) for up to 24 hours. During the outage, some voice and text services suffered from congestion.<sup id="cite_ref-38" class="reference"><a href="#cite_note-38"><span class="cite-bracket">[</span>38<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Network">Network</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=9" title="Edit section: Network"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:O2_Offices_in_Leeds.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f1/O2_Offices_in_Leeds.jpg/220px-O2_Offices_in_Leeds.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f1/O2_Offices_in_Leeds.jpg/330px-O2_Offices_in_Leeds.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f1/O2_Offices_in_Leeds.jpg/440px-O2_Offices_in_Leeds.jpg 2x" data-file-width="1600" data-file-height="1200" /></a><figcaption>The O2 offices in <a href="/wiki/Leeds" title="Leeds">Leeds</a></figcaption></figure> <p>BT Cellnet launched the world's first <a href="/wiki/GPRS" title="GPRS">GPRS</a> network on 22 June 2000, although GPRS-enabled devices were uncommon at that time.<sup id="cite_ref-39" class="reference"><a href="#cite_note-39"><span class="cite-bracket">[</span>39<span class="cite-bracket">]</span></a></sup> </p><p>O2 publicly announced on 15 December 2009 that it had successfully demonstrated a <a href="/wiki/4G" title="4G">4G</a> connection using <a href="/wiki/LTE_(telecommunication)" title="LTE (telecommunication)">LTE</a> technology installed in six masts in <a href="/wiki/Slough" title="Slough">Slough</a>.<sup id="cite_ref-40" class="reference"><a href="#cite_note-40"><span class="cite-bracket">[</span>40<span class="cite-bracket">]</span></a></sup> The technology, which was supplied by <a href="/wiki/Huawei" title="Huawei">Huawei</a>, achieved a peak downlink rate of 150 <a href="/wiki/Mbps" class="mw-redirect" title="Mbps">Mbps</a>.<sup id="cite_ref-41" class="reference"><a href="#cite_note-41"><span class="cite-bracket">[</span>41<span class="cite-bracket">]</span></a></sup> </p><p>In January 2012, the company announced plans to provide free internet to millions of residents and visitors in central London, by launching Europe's largest free Wi-Fi zone, along with free Wi-Fi access for anyone on any network in and around every O2 retail store.<sup id="cite_ref-42" class="reference"><a href="#cite_note-42"><span class="cite-bracket">[</span>42<span class="cite-bracket">]</span></a></sup> </p><p>On 20 February 2013, Ofcom announced that O2 had been awarded spectrum in the 800 MHz band for 4G LTE coverage, bidding around £550 million for the spectrum.<sup id="cite_ref-43" class="reference"><a href="#cite_note-43"><span class="cite-bracket">[</span>43<span class="cite-bracket">]</span></a></sup> This spectrum came with a coverage obligation from Ofcom, and O2 is obliged to provide a mobile broadband service for indoor reception to at least 98 per cent of the UK population (expected to cover at least 99 per cent when outdoors) and at least 95 per cent of the population of each of the UK nations – England, Northern Ireland, Scotland and Wales – by the end of 2017 at the latest.<sup id="cite_ref-44" class="reference"><a href="#cite_note-44"><span class="cite-bracket">[</span>44<span class="cite-bracket">]</span></a></sup> The 4G LTE service became available to customers in London, Leeds and Bradford on 29 August 2013, and expanded to a further ten cities by the end of the year.<sup id="cite_ref-45" class="reference"><a href="#cite_note-45"><span class="cite-bracket">[</span>45<span class="cite-bracket">]</span></a></sup> </p><p>On 27 March 2017, following the release of <a href="/wiki/IOS_10" title="IOS 10">iOS 10.3</a>, O2 launched <a href="/wiki/Voice_over_LTE" title="Voice over LTE">VoLTE (4G)</a> and <a href="/wiki/Generic_Access_Network" class="mw-redirect" title="Generic Access Network">WiFi Calling</a> for <a href="/wiki/IPhone_7" title="IPhone 7">iPhone 7</a> and <a href="/wiki/IPhone_7" title="IPhone 7">iPhone 7 Plus</a> users, and stated more devices would be eligible at a later date.<sup id="cite_ref-46" class="reference"><a href="#cite_note-46"><span class="cite-bracket">[</span>46<span class="cite-bracket">]</span></a></sup> The facility was later extended to other makes and models of mobile phone. </p> <table class="wikitable sortable"> <caption>Frequencies used on the O2 UK network<sup id="cite_ref-47" class="reference"><a href="#cite_note-47"><span class="cite-bracket">[</span>47<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-48" class="reference"><a href="#cite_note-48"><span class="cite-bracket">[</span>48<span class="cite-bracket">]</span></a></sup> </caption> <tbody><tr> <th>Frequency</th> <th>Band</th> <th>Protocol</th> <th>Class </th></tr> <tr> <td>900 MHz</td> <td></td> <td><a href="/wiki/GSM" title="GSM">GSM</a>/<a href="/wiki/General_Packet_Radio_Service" class="mw-redirect" title="General Packet Radio Service">GPRS</a>/<a href="/wiki/Enhanced_Data_Rates_for_GSM_Evolution" class="mw-redirect" title="Enhanced Data Rates for GSM Evolution">EDGE</a></td> <td><a href="/wiki/2G" title="2G">2G</a> </td></tr> <tr> <td>900 MHz</td> <td>8</td> <td><a href="/wiki/UMTS" title="UMTS">UMTS</a>/<a href="/wiki/High_Speed_Packet_Access" title="High Speed Packet Access">HSDPA/HSPA+/DC-HSPA+</a></td> <td><a href="/wiki/3G" title="3G">3G</a> </td></tr> <tr> <td>2,100 MHz</td> <td>1</td> <td><a href="/wiki/UMTS" title="UMTS">UMTS</a>/<a href="/wiki/High_Speed_Packet_Access" title="High Speed Packet Access">HSDPA/HSPA+/DC-HSPA+</a></td> <td><a href="/wiki/3G" title="3G">3G</a> </td></tr> <tr> <td>700 MHz </td> <td>28 </td> <td><a href="/wiki/LTE_(telecommunication)" title="LTE (telecommunication)">LTE</a>/<a href="/wiki/LTE_Advanced" title="LTE Advanced">LTE Advanced</a> </td> <td><a href="/wiki/4G" title="4G">4G</a>/<a href="/wiki/LTE_Advanced" title="LTE Advanced">4G+</a> </td></tr> <tr> <td>800 MHz </td> <td>20 </td> <td><a href="/wiki/LTE_(telecommunication)" title="LTE (telecommunication)">LTE</a>/<a href="/wiki/LTE_Advanced" title="LTE Advanced">LTE Advanced</a> </td> <td><a href="/wiki/4G" title="4G">4G</a>/<a href="/wiki/LTE_Advanced" title="LTE Advanced">4G+</a> </td></tr> <tr> <td>900 MHz </td> <td>8 </td> <td><a href="/wiki/LTE_(telecommunication)" title="LTE (telecommunication)">LTE</a>/<a href="/wiki/LTE_Advanced" title="LTE Advanced">LTE Advanced</a> </td> <td><a href="/wiki/4G" title="4G">4G</a>/<a href="/wiki/LTE_Advanced" title="LTE Advanced">4G+</a> </td></tr> <tr> <td>1,800 MHz</td> <td>3</td> <td><a href="/wiki/LTE_(telecommunication)" title="LTE (telecommunication)">LTE</a>/<a href="/wiki/LTE_Advanced" title="LTE Advanced">LTE Advanced</a></td> <td><a href="/wiki/4G" title="4G">4G</a>/<a href="/wiki/LTE_Advanced" title="LTE Advanced">4G+</a> </td></tr> <tr> <td>2,100 MHz</td> <td>1</td> <td><a href="/wiki/LTE_(telecommunication)" title="LTE (telecommunication)">LTE</a>/<a href="/wiki/LTE_Advanced" title="LTE Advanced">LTE Advanced</a></td> <td><a href="/wiki/4G" title="4G">4G</a>/<a href="/wiki/LTE_Advanced" title="LTE Advanced">4G+</a> </td></tr> <tr> <td>2,300 MHz</td> <td>40</td> <td><a href="/wiki/TD-LTE" class="mw-redirect" title="TD-LTE">TD-LTE</a></td> <td><a href="/wiki/4G" title="4G">4G</a>/<a href="/wiki/LTE_Advanced" title="LTE Advanced">4G+</a> </td></tr> <tr> <td>2,600 MHz </td> <td>38 </td> <td><a href="/wiki/TD-LTE" class="mw-redirect" title="TD-LTE">TD-LTE</a> </td> <td><a href="/wiki/4G" title="4G">4G</a>/<a href="/wiki/LTE_Advanced" title="LTE Advanced">4G+</a> </td></tr> <tr> <td>700 MHz </td> <td>n28 </td> <td><a href="/wiki/5G_NR" title="5G NR">5G NR</a> </td> <td><a href="/wiki/5G" title="5G">5G</a> </td></tr> <tr> <td>900 MHz </td> <td>n8 </td> <td><a href="/wiki/5G_NR" title="5G NR">5G NR</a> </td> <td><a href="/wiki/5G" title="5G">5G</a> </td></tr> <tr> <td>2,100 MHz </td> <td>n1 </td> <td><a href="/wiki/5G_NR" title="5G NR">5G NR</a> </td> <td><a href="/wiki/5G" title="5G">5G</a> </td></tr> <tr> <td data-sort-value="3500">3,500 MHz</td> <td>n78</td> <td><a href="/wiki/5G_NR" title="5G NR">5G NR</a></td> <td><a href="/wiki/5G" title="5G">5G</a> </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Former_operations">Former operations</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=10" title="Edit section: Former operations"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Fixed_line_and_broadband">Fixed line and broadband</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=11" title="Edit section: Fixed line and broadband"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Alongside mobile telephone services, the company also provided fixed line services and home broadband. </p><p>O2 purchased <a href="/wiki/Be_Un_Limited" title="Be Un Limited">Be Un Limited</a>, an <a href="/wiki/Internet_service_provider" title="Internet service provider">internet service provider</a> in the UK, for £50 million in June 2006.<sup id="cite_ref-49" class="reference"><a href="#cite_note-49"><span class="cite-bracket">[</span>49<span class="cite-bracket">]</span></a></sup> O2 retained the Be brand, and launched a separate O2-branded broadband service on 15 October 2007, using the Be network. </p><p>O2 announced in June 2011 a fibre optic broadband service designed to compete with the <a href="/wiki/BT_Infinity" class="mw-redirect" title="BT Infinity">BT Infinity</a> product, using FTTC technology.<sup id="cite_ref-50" class="reference"><a href="#cite_note-50"><span class="cite-bracket">[</span>50<span class="cite-bracket">]</span></a></sup> </p><p><a href="/wiki/BSkyB" class="mw-redirect" title="BSkyB">BSkyB</a> agreed on 1 March 2013 to buy the fixed telephone line and broadband business of Telefonica UK, trading under the O2 and Be brands. The company agreed to pay £180 million initially, followed by a further £20 million after all customers had been transferred to Sky's existing business. The sale was subject to regulatory approval in April 2013,<sup id="cite_ref-51" class="reference"><a href="#cite_note-51"><span class="cite-bracket">[</span>51<span class="cite-bracket">]</span></a></sup> and was subsequently approved by the <a href="/wiki/Office_of_Fair_Trading" title="Office of Fair Trading">Office of Fair Trading</a> on 16 May 2013.<sup id="cite_ref-52" class="reference"><a href="#cite_note-52"><span class="cite-bracket">[</span>52<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Payment_system">Payment system</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=12" title="Edit section: Payment system"><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">Main article: <a href="/wiki/O2_Money" title="O2 Money">O2 Money</a></div> <p>O2 began trialling a <a href="/wiki/Near_Field_Communication" class="mw-redirect" title="Near Field Communication">Near Field Communication</a> (NFC) payment system in 2007.<sup id="cite_ref-53" class="reference"><a href="#cite_note-53"><span class="cite-bracket">[</span>53<span class="cite-bracket">]</span></a></sup> In 2009, O2 was in discussions with large retailers, such as <a href="/wiki/Tesco" title="Tesco">Tesco</a> and <a href="/wiki/W_H_Smith" class="mw-redirect" title="W H Smith">W. H. Smith</a>, for the deployment of the necessary electronic point of sale units, and with handset manufacturers, such as <a href="/wiki/Apple_Inc." title="Apple Inc.">Apple</a> and <a href="/wiki/Samsung" title="Samsung">Samsung</a>, to enable NFC technology on all future devices.<sup id="cite_ref-54" class="reference"><a href="#cite_note-54"><span class="cite-bracket">[</span>54<span class="cite-bracket">]</span></a></sup> </p><p>On 23 February 2011, O2 announced it would launch a "second phase" for O2 Money, by discontinuing its branded <a href="/wiki/ATM_card" title="ATM card">cash cards</a> in favour of a "mobile wallet" application for <a href="/wiki/Android_(operating_system)" title="Android (operating system)">Android</a> and <a href="/wiki/IOS_(Apple)" class="mw-redirect" title="IOS (Apple)">iOS</a> devices. The application would use NFC technology embedded in a phone to access money.<sup id="cite_ref-55" class="reference"><a href="#cite_note-55"><span class="cite-bracket">[</span>55<span class="cite-bracket">]</span></a></sup> </p><p>It was announced on 9 January 2014 that the O2 wallet service would close on 31 March 2014. </p> <div class="mw-heading mw-heading2"><h2 id="Marketing">Marketing</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=13" title="Edit section: Marketing"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Branding">Branding</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=14" title="Edit section: Branding"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The BT Cellnet consumer <a href="/wiki/Brand" title="Brand">brand</a> was renamed <b>O<sub>2</sub></b> – the chemical symbol for an <a href="/wiki/Oxygen" title="Oxygen">oxygen</a> <a href="/wiki/Molecule" title="Molecule">molecule</a> – as were all the group's other businesses (other than <a href="/wiki/Manx_Telecom" title="Manx Telecom">Manx Telecom</a>). The rebranding was overseen by the <a href="/wiki/Lambie-Nairn" class="mw-redirect" title="Lambie-Nairn">Lambie-Nairn</a> design agency, which developed the idea of the company supplying services that were essential, much the same as oxygen is essential for life. The company logo and associated graphics were designed using air bubbles to present this concept. The bubbles were photographed by London-based photographer Jonathan Knowles.<sup id="cite_ref-56" class="reference"><a href="#cite_note-56"><span class="cite-bracket">[</span>56<span class="cite-bracket">]</span></a></sup> In 2002, O2 used <a href="/wiki/Leftfield" title="Leftfield">Leftfield</a>'s dance track "<a href="/wiki/Release_the_Pressure" title="Release the Pressure">Release the Pressure</a>" in their ads.<sup id="cite_ref-57" class="reference"><a href="#cite_note-57"><span class="cite-bracket">[</span>57<span class="cite-bracket">]</span></a></sup> </p><p>O2 adopted the slogan "See what you can do" in 2002 after the company's demerger from BT. In April 2008, the slogan changed to "We’re better, connected".<sup id="cite_ref-58" class="reference"><a href="#cite_note-58"><span class="cite-bracket">[</span>58<span class="cite-bracket">]</span></a></sup> In July 2013 the slogan changed to "Be more dog",<sup id="cite_ref-59" class="reference"><a href="#cite_note-59"><span class="cite-bracket">[</span>59<span class="cite-bracket">]</span></a></sup> followed by "More for you"<sup id="cite_ref-60" class="reference"><a href="#cite_note-60"><span class="cite-bracket">[</span>60<span class="cite-bracket">]</span></a></sup> in June 2016 and "Breathe it all in" in September 2018. After the merger of Virgin Media and O2's parent companies, older variations of the slogans returned, now being shared with Virgin Media. The 2008 slogan "We’re better, connected" returned in November 2021, and March 2023 saw the return of O2's original slogan "See what you can do". All of O2's marketing campaigns to date have been created by London advertising agency VCCP.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (December 2023)">citation needed</span></a></i>]</sup> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:O2LaunchRiverThames30Apr2002.jpg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/96/O2LaunchRiverThames30Apr2002.jpg/250px-O2LaunchRiverThames30Apr2002.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/96/O2LaunchRiverThames30Apr2002.jpg/330px-O2LaunchRiverThames30Apr2002.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/96/O2LaunchRiverThames30Apr2002.jpg/500px-O2LaunchRiverThames30Apr2002.jpg 2x" data-file-width="2560" data-file-height="1920" /></a><figcaption>O2 brand launch event, River Thames, 30 April 2002</figcaption></figure> <div class="mw-heading mw-heading3"><h3 id="Sponsorships">Sponsorships</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=15" title="Edit section: Sponsorships"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>O2 currently sponsor the <a href="/wiki/England_national_rugby_union_team" title="England national rugby union team">England rugby team</a>, and in 2003 launched a mobile video service allowing customers to download or stream video content related to the <a href="/wiki/2003_Rugby_World_Cup" title="2003 Rugby World Cup">2003 Rugby World Cup</a>. The initial deal was signed in 1995, as Cellnet, and then renewed in 2000 as BT Cellnet.<sup id="cite_ref-61" class="reference"><a href="#cite_note-61"><span class="cite-bracket">[</span>61<span class="cite-bracket">]</span></a></sup> In 2005, Telefónica O2 extended their involvement in <a href="/wiki/Rugby_union" title="Rugby union">rugby union</a>, signing a new deal with the England rugby team and the <a href="/wiki/Rugby_Football_Union" title="Rugby Football Union">Rugby Football Union</a>, as well as O2 rugbyclass and Premier Rugby Ltd for the <a href="/wiki/English_Premiership_(rugby_union)" class="mw-redirect" title="English Premiership (rugby union)">English Premiership</a>. Their latest renewal of the sponsorship was in 2016, which ran for five years until September 2021 and was again renewed in 2021 for another 5 years till 2026.<sup id="cite_ref-62" class="reference"><a href="#cite_note-62"><span class="cite-bracket">[</span>62<span class="cite-bracket">]</span></a></sup> </p><p>Additionally, Telefónica O2 had a long-standing relationship with <a href="/wiki/Arsenal_F.C." title="Arsenal F.C.">Arsenal F.C.</a>, being their shirt sponsor until the end of the <a href="/wiki/2005%E2%80%9306_Arsenal_F.C._season" title="2005–06 Arsenal F.C. season">2005/2006</a> season. In 2005, a three-year deal was signed that saw Telefónica O2 become the team's exclusive mobile communications partner. </p><p>O2 were the main sponsor of the <a href="/wiki/Channel_4" title="Channel 4">Channel 4</a> reality TV show <i><a href="/wiki/Big_Brother_(UK)" class="mw-redirect" title="Big Brother (UK)">Big Brother</a></i> from its <a href="/wiki/Big_Brother_2_(UK)" class="mw-redirect" title="Big Brother 2 (UK)">second series</a> (as BT Cellnet) in 2001 until its <a href="/wiki/Big_Brother_4_(UK)" class="mw-redirect" title="Big Brother 4 (UK)">fourth series</a> in 2003. They also sponsored the spin-off shows <i><a href="/wiki/Celebrity_Big_Brother_2_(UK)" class="mw-redirect" title="Celebrity Big Brother 2 (UK)">Celebrity Big Brother 2</a></i> in 2002 and <i><a href="/wiki/Teen_Big_Brother:_The_Experiment" title="Teen Big Brother: The Experiment">Teen Big Brother</a></i> in 2003. In total O2 sponsored five series of the show. </p> <div class="mw-heading mw-heading3"><h3 id="Naming_rights">Naming rights</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=16" title="Edit section: Naming rights"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:The_O2_Arena,_entrance.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6f/The_O2_Arena%2C_entrance.jpg/250px-The_O2_Arena%2C_entrance.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6f/The_O2_Arena%2C_entrance.jpg/330px-The_O2_Arena%2C_entrance.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/6f/The_O2_Arena%2C_entrance.jpg/500px-The_O2_Arena%2C_entrance.jpg 2x" data-file-width="3456" data-file-height="2592" /></a><figcaption>The O2 entrance</figcaption></figure> <p>O2 is the sponsor of <a href="/wiki/The_O2" title="The O2">The O2</a> in London. Since its launch in 2007 the <a href="/wiki/Millennium_Dome" title="Millennium Dome">Millennium Dome</a> has been transformed and rebranded by O2 into an entertainment venue. </p><p><a href="/wiki/The_O2_Arena" title="The O2 Arena">The O2 Arena</a> was the site of the artistic gymnastics events and medal rounds in basketball for the <a href="/wiki/2012_Summer_Olympics" title="2012 Summer Olympics">2012 Summer Olympics</a>. </p><p>In February 2017, in a continuation of its agreement with <a href="/wiki/Anschutz_Entertainment_Group" title="Anschutz Entertainment Group">AEG</a>, the developers of the site, O2 announced that it had renewed its naming rights for a further ten years till 2027. </p> <div class="mw-heading mw-heading4"><h4 id="Academy_Music_Group_venues">Academy Music Group venues</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=17" title="Edit section: Academy Music Group venues"><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">Main article: <a href="/wiki/Academy_Music_Group" title="Academy Music Group">Academy Music Group</a></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:O2_Academy.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/en/thumb/7/79/O2_Academy.jpg/250px-O2_Academy.jpg" decoding="async" width="220" height="44" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/7/79/O2_Academy.jpg 1.5x" data-file-width="324" data-file-height="65" /></a><figcaption></figcaption></figure> <p>Since 2008, O2 is partnered with <a href="/wiki/Live_Nation" class="mw-redirect" title="Live Nation">Live Nation</a>, allowing O2 to rename its <a href="/wiki/Academy_Music_Group" title="Academy Music Group">Academy Music Group</a> music venues.<sup id="cite_ref-63" class="reference"><a href="#cite_note-63"><span class="cite-bracket">[</span>63<span class="cite-bracket">]</span></a></sup> The partnership allows O2 to offer customers priority access to all events at O2 Academy venues as well as Live Nation promoted events across the United Kingdom. The partnership was renewed in 2017 for a further ten years.<sup id="cite_ref-64" class="reference"><a href="#cite_note-64"><span class="cite-bracket">[</span>64<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Environmental_record">Environmental record</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=18" title="Edit section: Environmental record"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In February 2009, O2 became the first mobile telecommunications provider to be certified with the <a href="/wiki/The_Carbon_Trust#Carbon_Label_and_Carbon_Trust_Standard" class="mw-redirect" title="The Carbon Trust">Carbon Trust Standard</a> in recognition of its commitment to reduce its <a href="/wiki/Carbon_footprint" title="Carbon footprint">carbon footprint</a>. O2 attained the standard after saving 47,000<span class="nowrap"> </span>tonnes of carbon over the previous three years through its energy efficiency measures, including a £1.4<span class="nowrap"> </span>million distribution of <a href="/wiki/Smart_meter" title="Smart meter">smart metering technology</a> across the company's <a href="/wiki/Cell_site" title="Cell site">cell sites</a>, offices and retail stores, and upgrades to more energy efficient systems across its <a href="/wiki/Cellular_network" title="Cellular network">mobile phone network</a>. In addition to distributing energy efficient <a href="/wiki/Light-emitting_diode" title="Light-emitting diode">LED</a> lighting and <a href="/wiki/Boiler" title="Boiler">boiler system controls</a>, the company was also able to reduce energy use by removing <a href="/wiki/Air_conditioning" title="Air conditioning">air conditioning</a> units from some of its cell sites and reducing <a href="/wiki/Computer_monitor" title="Computer monitor">computer monitor</a> standby times.<sup id="cite_ref-65" class="reference"><a href="#cite_note-65"><span class="cite-bracket">[</span>65<span class="cite-bracket">]</span></a></sup> </p><p>O2 is a voluntary participant in the <a href="/wiki/10:10" class="mw-redirect" title="10:10">10:10</a> climate change campaign, which required participants to cut their carbon emissions by 10 per cent by the end of 2010, and has since broadened its approach to include a range of projects focused on carbon reduction and <a href="/wiki/Renewable_energy" title="Renewable energy">renewable energy</a>.<sup id="cite_ref-66" class="reference"><a href="#cite_note-66"><span class="cite-bracket">[</span>66<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Controversy">Controversy</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=19" title="Edit section: Controversy"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In July 2016 Cyber Security company Insinia raised fears that customer data from an O2 cyber breach was being sold on the <a href="/wiki/Dark_web" title="Dark web">dark web</a>. O2 denied this was true telling the BBC: "We have not suffered a data breach. Credential stuffing is a challenge for businesses and can result in many company's customer data being sold on the dark net".<sup id="cite_ref-67" class="reference"><a href="#cite_note-67"><span class="cite-bracket">[</span>67<span class="cite-bracket">]</span></a></sup> </p><p>In October 2017, an inquiry was launched in the UK concerning overcharging customers for handset sales integrated with the data and call charges. Responding to questions, O2's CEO indicated that the company's billing allows for separation of handset charges and telephony/data charges. He added that "if we can do it, they can do it too" in reference to Vodafone and <a href="/wiki/EE_(telecommunications)" title="EE (telecommunications)">EE</a>, O2's biggest competitors and the UK's top three mobile-telecoms companies.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (October 2017)">citation needed</span></a></i>]</sup> </p> <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=O2_(UK)&action=edit&section=20" 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-companieshouse-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-companieshouse_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-companieshouse_1-1"><sup><i><b>b</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 class="citation web cs1"><a rel="nofollow" class="external text" href="https://find-and-update.company-information.service.gov.uk/company/01743099">"TELEFONICA UK LIMITED overview - 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Retrieved: 6 December 2012.</span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</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://news.virginmediao2.co.uk/wp-content/uploads/2025/02/Virgin-Media-O2-Q4-FY-2024-Earnings-Release.pdf">"Q4 2024 Earnings Release"</a> <span class="cs1-format">(PDF)</span>. <i>news.virginmediao2.co.uk</i>. 19 February 2025<span class="reference-accessdate">. Retrieved <span class="nowrap">19 February</span> 2025</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=news.virginmediao2.co.uk&rft.atitle=Q4+2024+Earnings+Release&rft.date=2025-02-19&rft_id=https%3A%2F%2Fnews.virginmediao2.co.uk%2Fwp-content%2Fuploads%2F2025%2F02%2FVirgin-Media-O2-Q4-FY-2024-Earnings-Release.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AO2+%28UK%29" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</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://find-and-update.company-information.service.gov.uk/company/01814089">"O2 Solutions Limited (formerly Cellnet Limited)"</a>. <i>Companies House</i><span class="reference-accessdate">. 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Retrieved <span class="nowrap">23 February</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Music+Week&rft.atitle=O2%2C+Live+Nation+and+Academy+Music+Group+renew+alliance+for+O2+Academy+venues&rft.date=2017-07-24&rft_id=http%3A%2F%2Fwww.musicweek.com%2Flive%2Fread%2Fo2-live-nation-and-academy-music-group-renew-alliance-for-o2-academy-venues%2F069239&rfr_id=info%3Asid%2Fen.wikipedia.org%3AO2+%28UK%29" 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 id="CITEREFMurray2009" class="citation web cs1">Murray, James (20 February 2009). <a rel="nofollow" class="external text" href="http://www.businessgreen.com/business-green/news/2236897/o2-first-mobile-firm-gain">"O2 first mobile firm to gain Carbon Trust Standard"</a>. <i><a href="/wiki/BusinessGreen" class="mw-redirect" title="BusinessGreen">BusinessGreen</a></i><span class="reference-accessdate">. Retrieved <span class="nowrap">2 October</span> 2010</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=BusinessGreen&rft.atitle=O2+first+mobile+firm+to+gain+Carbon+Trust+Standard&rft.date=2009-02-20&rft.aulast=Murray&rft.aufirst=James&rft_id=http%3A%2F%2Fwww.businessgreen.com%2Fbusiness-green%2Fnews%2F2236897%2Fo2-first-mobile-firm-gain&rfr_id=info%3Asid%2Fen.wikipedia.org%3AO2+%28UK%29" class="Z3988"></span></span> </li> <li id="cite_note-66"><span class="mw-cite-backlink"><b><a href="#cite_ref-66">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFCarrington2009" class="citation news cs1">Carrington, Damian (27 September 2009). <a rel="nofollow" class="external text" href="https://www.theguardian.com/environment/2009/sep/27/10-10-climate-campaign-momentum">"10:10 climate campaign gathers momentum"</a>. <i><a href="/wiki/The_Guardian" title="The Guardian">The Guardian</a></i><span class="reference-accessdate">. Retrieved <span class="nowrap">2 October</span> 2010</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Guardian&rft.atitle=10%3A10+climate+campaign+gathers+momentum&rft.date=2009-09-27&rft.aulast=Carrington&rft.aufirst=Damian&rft_id=https%3A%2F%2Fwww.theguardian.com%2Fenvironment%2F2009%2Fsep%2F27%2F10-10-climate-campaign-momentum&rfr_id=info%3Asid%2Fen.wikipedia.org%3AO2+%28UK%29" class="Z3988"></span></span> </li> <li id="cite_note-67"><span class="mw-cite-backlink"><b><a href="#cite_ref-67">^</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="https://www.bbc.co.uk/news/technology-36764548">"O2 customer data sold on dark net"</a>. <i>BBC News</i>. 25 July 2016<span class="reference-accessdate">. Retrieved <span class="nowrap">15 November</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=BBC+News&rft.atitle=O2+customer+data+sold+on+dark+net&rft.date=2016-07-25&rft_id=https%3A%2F%2Fwww.bbc.co.uk%2Fnews%2Ftechnology-36764548&rfr_id=info%3Asid%2Fen.wikipedia.org%3AO2+%28UK%29" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=O2_(UK)&action=edit&section=21" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><span class="official-website"><span class="url"><a rel="nofollow" class="external text" href="https://o2.co.uk/">Official website</a></span></span> <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a 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href="/wiki/Template:Virgin_Media_O2" title="Template:Virgin Media O2"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Virgin_Media_O2" title="Template talk:Virgin Media O2"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Virgin_Media_O2" title="Special:EditPage/Template:Virgin Media O2"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Virgin_Media_O2337" style="font-size:114%;margin:0 4em"><a href="/wiki/Virgin_Media_O2" title="Virgin Media O2">Virgin Media O2</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Products and services</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 selflink">O2 UK</a></li> <li><a href="/wiki/Virgin_Media" title="Virgin Media">Virgin Media</a></li> <li><a href="/wiki/Giffgaff" title="Giffgaff">giffgaff</a></li> <li><a href="/wiki/Tesco_Mobile" title="Tesco Mobile">Tesco Mobile</a> (50%)</li> <li><a href="/wiki/Virgin_Media_Business" title="Virgin Media Business">Virgin Media Business</a></li> <li><a href="/wiki/Virgin_TV" title="Virgin TV">Virgin TV</a></li> <li><a href="/wiki/O2_Store" title="O2 Store">O2 Store</a></li> <li><a href="/wiki/O2_Money" title="O2 Money">O2 Money</a></li></ul> </div></td><td class="noviewer navbox-image" rowspan="4" style="width:1px;padding:0 0 0 2px"><div><span typeof="mw:File"><a href="/wiki/File:Virgin_Media_O2.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Virgin_Media_O2.svg/100px-Virgin_Media_O2.svg.png" decoding="async" width="100" height="47" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Virgin_Media_O2.svg/150px-Virgin_Media_O2.svg.png 1.5x, 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href="/wiki/Living_TV_Group" title="Living TV Group">Virgin Media Television</a> <ul><li><a href="/wiki/Challenge_(TV_channel)" title="Challenge (TV channel)">Challenge</a></li> <li><a href="/wiki/Sky_Witness" title="Sky Witness">Living</a></li> <li><a href="/wiki/Bravo_(British_TV_channel)" title="Bravo (British TV channel)">Bravo</a></li> <li><a href="/wiki/Bravo_2" title="Bravo 2">Bravo 2</a></li> <li><a href="/wiki/Jackpot247" title="Jackpot247">Challenge Jackpot</a></li> <li><a href="/wiki/CNBC_Europe" title="CNBC Europe">EBN</a></li> <li><a href="/wiki/Ftn_(TV_channel)" title="Ftn (TV channel)">Ftn</a></li> <li><a href="/wiki/Real_Lives_(TV_channel)" title="Real Lives (TV channel)">Real Lives</a></li> <li><a href="/wiki/SceneOne" title="SceneOne">SceneOne</a></li> <li><a href="/wiki/Setanta_Sports_News" title="Setanta Sports News">Setanta Sports News</a></li> <li><a href="/wiki/Sky_Living_Loves" title="Sky Living Loves">Living Loves</a></li> <li><a href="/wiki/The_Children%27s_Channel" title="The Children's Channel">The Children's Channel</a></li> <li><a href="/wiki/Trouble_(TV_channel)" title="Trouble (TV channel)">Trouble</a></li> <li><a href="/wiki/Virgin1" title="Virgin1">Virgin1</a></li></ul></li> <li><a href="/wiki/Bid_Shopping" title="Bid Shopping">Bid Shopping</a></li> <li><a href="/wiki/Smallworld_Cable" title="Smallworld Cable">Smallworld Cable</a></li> <li><a href="/wiki/UKTV" title="UKTV">UKTV</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Predecessors</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Virgin Media</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/NTL_Incorporated" title="NTL Incorporated">NTL</a> (1992–2006)</li> <li><a href="/wiki/Telewest" title="Telewest">Telewest</a> (1984–2006)</li> <li><a href="/wiki/Liberty_Global" title="Liberty Global">Liberty Global</a> (2013–2021)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">O2</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 href="/wiki/BT_Group" title="BT Group">BT Group</a> (1985–2002)</li> <li><a href="/wiki/Securicor" title="Securicor">Securicor</a> (1985–1999; 40%)</li> <li><a class="mw-selflink-fragment" href="#1985_to_2005">O2 plc</a> (2002–2006)</li> <li><a href="/wiki/Telef%C3%B3nica" title="Telefónica">Telefónica</a> (2006–2021)</li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td class="navbox-abovebelow" colspan="3"><div> <ul><li><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:Virgin_Media_O2" title="Category:Virgin Media O2">Category</a></li> <li><span class="noviewer" typeof="mw:File"><span title="Commons page"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/20px-Commons-logo.svg.png" decoding="async" width="12" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/40px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span> <a href="https://commons.wikimedia.org/wiki/Category:Virgin_Media_O2" class="extiw" title="commons:Category:Virgin Media O2">Commons</a></li></ul> </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="BT_Group391" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3"><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:BT_Group" title="Template:BT Group"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:BT_Group" title="Template talk:BT Group"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:BT_Group" title="Special:EditPage/Template:BT Group"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="BT_Group391" style="font-size:114%;margin:0 4em"><a href="/wiki/BT_Group" title="BT Group">BT Group</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Divisions<br />and<br />subsidiaries</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:3em;text-align:left; background-color:#eee">Current</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/BT_Consumer" class="mw-redirect" title="BT Consumer">BT Consumer</a></li> <li><a href="/wiki/BT_Business_and_Public_Sector" title="BT Business and Public Sector">BT Business and Public Sector</a></li> <li><a href="/wiki/BT_Global_Services" title="BT Global Services">BT Global Services</a></li> <li><a href="/wiki/BT_Wholesale_and_Ventures" title="BT Wholesale and Ventures">BT Wholesale and Ventures</a></li> <li><a href="/wiki/BT_Research" title="BT Research">BT Research</a></li> <li><a href="/wiki/Openreach" title="Openreach">Openreach</a></li> <li><a href="/wiki/EE_(telecommunications)" title="EE (telecommunications)">EE</a></li> <li><a href="/wiki/Plusnet" title="Plusnet">Plusnet</a></li> <li><a href="/wiki/BT_Ireland" title="BT Ireland">BT Ireland</a></li> <li><a href="/wiki/BT_Italia" title="BT Italia">BT Italia</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:3em;text-align:left; background-color:#eee">Former</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Global_Marine_Systems" title="Global Marine Systems">BT Marine</a></li> <li><a href="/wiki/Dabs.com" title="Dabs.com">dabs.com</a></li> <li><a href="/wiki/Hibu" title="Hibu">Hibu</a></li> <li><a href="/wiki/Madasafish" class="mw-redirect" title="Madasafish">Madasafish</a> <ul><li><small>merged into <a href="/wiki/Plusnet" title="Plusnet">Plusnet</a></small></li></ul></li> <li><a href="/wiki/Manx_Telecom" title="Manx Telecom">Manx Telecom</a></li> <li><a class="mw-selflink selflink">O2 (UK)</a></li> <li><a href="/wiki/O2_(Ireland)" title="O2 (Ireland)">O2 (Ireland)</a></li> <li><a href="/wiki/Telef%C3%B3nica_Germany" title="Telefónica Germany">O2 (Germany)</a></li> <li><a href="/wiki/Ribbit_(telecommunications_company)" title="Ribbit (telecommunications company)">Ribbit</a></li> <li><a href="/wiki/Concert_Communications_Services" title="Concert Communications Services">Concert Communications Services</a></li> <li><a href="/wiki/Telecomsoft" title="Telecomsoft">Telecomsoft</a></li> <li><a href="/wiki/Tymnet" title="Tymnet">Tymnet</a></li> <li><a href="/wiki/International_Network_Services_Inc." title="International Network Services Inc.">International Network Services</a></li> <li><a href="/wiki/Dialcom" title="Dialcom">Dialcom</a></li> <li><a href="/wiki/Telfort" title="Telfort">Telfort</a></li> <li><a href="/wiki/LineOne" title="LineOne">LineOne</a></li> <li><a href="/wiki/Swindon_Cable" title="Swindon Cable">Swindon Cable</a></li> <li><a href="/wiki/6GMOBILE" class="mw-redirect" title="6GMOBILE">6GMOBILE</a></li> <li><a href="/wiki/Open...." class="mw-redirect" title="Open....">Open....</a></li></ul> </div></td></tr></tbody></table><div></div></td><td class="noviewer navbox-image" rowspan="6" style="width:1px;padding:0 0 0 2px"><div><span typeof="mw:File"><a href="/wiki/File:BT_logo_2019.svg" class="mw-file-description" title="BT logo, introduced 2019"><img alt="BT logo, introduced 2019" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/cd/BT_logo_2019.svg/120px-BT_logo_2019.svg.png" decoding="async" width="70" height="70" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/cd/BT_logo_2019.svg/250px-BT_logo_2019.svg.png 2x" data-file-width="999" data-file-height="999" /></a></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Products<br />and<br />services</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:3em;text-align:left; background-color:#eee">Current</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/BT_Broadband" title="BT Broadband">BT Broadband</a></li> <li><a href="/wiki/EE_(telecommunications)" title="EE (telecommunications)">EE Broadband</a></li> <li><a href="/wiki/EE_(telecommunications)" title="EE (telecommunications)">EE Mobile</a></li> <li><a href="/wiki/EE_TV" title="EE TV">EE TV</a></li> <li><a href="/wiki/EE_WiFi" title="EE WiFi">EE WiFi</a></li> <li><a href="/wiki/BT_Smart_Hub" title="BT Smart Hub">BT Smart Hub</a></li> <li><a href="/wiki/TNT_Sports_(United_Kingdom)" title="TNT Sports (United Kingdom)">TNT Sports</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:3em;text-align:left; background-color:#eee">Defunct</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/BT_Fusion" title="BT Fusion">BT Fusion</a></li> <li><a href="/wiki/BT_Highway" title="BT Highway">BT Highway</a></li> <li><a href="/wiki/BT_Mobile" title="BT Mobile">BT Mobile</a></li> <li><a href="/wiki/BT_Superfast_Fibre" title="BT Superfast Fibre">BT Superfast Fibre</a></li> <li><a href="/wiki/BT_Versatility" title="BT Versatility">BT Versatility</a></li> <li><a href="/wiki/BT_Voyager" title="BT Voyager">BT Voyager</a></li> <li><a href="/wiki/BT_MyDonate" title="BT MyDonate">BT MyDonate</a></li> <li><a href="/wiki/BT_MyPlace" title="BT MyPlace">BT MyPlace</a></li> <li><a href="/wiki/Telecom_Gold" title="Telecom Gold">Telecom Gold</a></li> <li><a href="/wiki/Micronet_800" title="Micronet 800">Micronet 800</a></li> <li><a href="/wiki/Merlin_M4000" title="Merlin M4000">Merlin M4000</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Buildings<br />and<br />facilities</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:3em;text-align:left; background-color:#eee">Current</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Adastral_Park" title="Adastral Park">Adastral Park</a></li> <li><a href="/wiki/Baynard_House,_London" title="Baynard House, London">Baynard House</a></li> <li><a href="/wiki/BT_Centre" class="mw-redirect" title="BT Centre">BT Centre</a></li> <li><a href="/wiki/BT_Tower" title="BT Tower">BT Tower (London)</a></li> <li><a href="/wiki/BT_Tower_(Birmingham)" class="mw-redirect" title="BT Tower (Birmingham)">BT Tower (Birmingham)</a></li> <li><a href="/wiki/BT_Tower_(Swansea)" title="BT Tower (Swansea)">BT Tower (Swansea)</a></li> <li><a href="/wiki/BT_Riverside_Tower" title="BT Riverside Tower">BT Riverside Tower</a></li> <li><a href="/wiki/Stadium_House,_Cardiff" title="Stadium House, Cardiff">Stadium House</a></li> <li><a href="/wiki/Charwelton_BT_Tower" title="Charwelton BT Tower">Charwelton BT Tower</a></li> <li><a href="/wiki/Faraday_Building" title="Faraday Building">Faraday Building</a></li> <li><a href="/wiki/Goonhilly_Satellite_Earth_Station" title="Goonhilly Satellite Earth Station">Goonhilly Cornwall</a></li> <li><a href="/wiki/Guardian_telephone_exchange" title="Guardian telephone exchange">Guardian Exchange Manchester</a></li> <li><a href="/wiki/Madley_Communications_Centre" title="Madley Communications Centre">Madley Communications Centre</a></li> <li><a href="/wiki/National_Network_Management_Centre" title="National Network Management Centre">National Network Management Centre</a></li> <li><a href="/wiki/Peterborough_transmitting_station" title="Peterborough transmitting station">Peterborough transmitting station</a></li> <li><a href="/wiki/Zouches_Farm_transmitting_station" title="Zouches Farm transmitting station">Zouches Farm transmitting station</a></li> <li><a href="/wiki/Heaton_Park_BT_Tower" title="Heaton Park BT Tower">Heaton Park BT Tower</a></li> <li><a href="/wiki/Purdown_BT_Tower" title="Purdown BT Tower">Purdown BT Tower</a></li> <li><a href="/wiki/Pye_Green_BT_Tower" title="Pye Green BT Tower">Pye Green BT Tower</a></li> <li><a href="/wiki/Stokenchurch_BT_Tower" title="Stokenchurch BT Tower">Stokenchurch BT Tower</a></li> <li><a href="/wiki/Sutton_Common_BT_Tower" title="Sutton Common BT Tower">Sutton Common BT Tower</a></li> <li><a href="/wiki/Tinshill_BT_Tower" title="Tinshill BT Tower">Tinshill BT Tower</a></li> <li><a href="/wiki/Tolsford_Hill_BT_Tower" title="Tolsford Hill BT Tower">Tolsford Hill BT Tower</a></li> <li><a href="/wiki/Wotton-under-Edge_BT_Tower" title="Wotton-under-Edge BT Tower">Wotton-under-Edge BT Tower</a></li> <li><a href="/wiki/Red_telephone_box" title="Red telephone box">Red telephone box</a></li> <li><a href="/wiki/KX_telephone_boxes" title="KX telephone boxes">KX telephone boxes</a></li> <li><a href="/wiki/LinkUK" title="LinkUK">LinkUK</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:3em;text-align:left; background-color:#eee">Former</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Anchor_telephone_exchange" title="Anchor telephone exchange">Anchor telephone exchange</a></li> <li><a href="/wiki/Bletchley_Park#Site_2" title="Bletchley Park">Bletchley Park</a></li> <li><a href="/wiki/C.S._Sovereign" title="C.S. Sovereign">CS <i>Sovereign</i></a></li> <li><a href="/wiki/De_Vere_Horwood_Estate#College" title="De Vere Horwood Estate">Horwood House</a></li> <li><a href="/wiki/Kingsway_telephone_exchange" title="Kingsway telephone exchange">Kingsway telephone exchange</a></li> <li><a href="/wiki/Leafield_Technical_Centre" title="Leafield Technical Centre">Leafield Technical Centre</a></li> <li><a href="/wiki/Mondial_House" title="Mondial House">Mondial House</a></li> <li><a href="/wiki/Stag_Lane_Aerodrome" title="Stag Lane Aerodrome">Stag Lane Aerodrome</a></li> <li><a href="/wiki/Graham_Hills_Building" title="Graham Hills Building">Marland House</a></li> <li><a href="/wiki/Vita_Student_Sheffield" title="Vita Student Sheffield">Sheffield Telephone House</a></li> <li><a href="/wiki/Post_Office_Research_Station" title="Post Office Research Station">Post Office Research Station</a></li> <li><a href="/wiki/Portishead_Radio" title="Portishead Radio">Portishead Radio</a></li> <li><a href="/wiki/Criggion_Radio_Station" title="Criggion Radio Station">Criggion Radio Station</a></li> <li><a href="/wiki/Rugby_Radio_Station" title="Rugby Radio Station">Rugby Radio Station</a></li> <li><a href="/wiki/British_Telecom_microwave_network" title="British Telecom microwave network">Microwave network</a></li> <li><a href="/wiki/TAT-1" title="TAT-1">TAT-1</a></li> <li><a href="/wiki/TAT-8" title="TAT-8">TAT-8</a></li> <li><a href="/wiki/TAT-9" title="TAT-9">TAT-9</a></li> <li><a href="/wiki/TAT-14" title="TAT-14">TAT-14</a></li> <li><a href="/wiki/CANTAT-2" title="CANTAT-2">CANTAT-2</a></li> <li><a href="/wiki/SAT-2" title="SAT-2">SAT-2</a></li> <li><a href="/wiki/UK-Belgium_5" title="UK-Belgium 5">UK-Belgium 5</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Programmes<br />and<br />standards</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:3em;text-align:left;background-color:#eee">Current</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/BT_21CN" title="BT 21CN">BT 21CN</a></li> <li><a href="/wiki/BT_site_engineering_code" title="BT site engineering code">BT site engineering code</a></li> <li><a href="/wiki/Speaking_clock#United_Kingdom" title="Speaking clock">BT Speaking Clock</a></li> <li><a href="/wiki/British_telephone_socket" title="British telephone socket">British telephone socket</a></li> <li><a href="/wiki/Cable_jetting" title="Cable jetting">Cable jetting</a></li> <li><a href="/wiki/Customer_Service_System" title="Customer Service System">Customer Service System</a></li> <li><a href="/wiki/Advanced_Mobile_Location" title="Advanced Mobile Location">Advanced Mobile Location</a></li> <li><a href="/wiki/Digital_Access_Carrier_System" class="mw-redirect" title="Digital Access Carrier System">Digital Access Carrier System</a></li> <li><a href="/wiki/Digital_Access_Signalling_System_2" title="Digital Access Signalling System 2">Digital Access Signalling System 2</a></li> <li><a href="/wiki/System_X_(telephony)" title="System X (telephony)">System X</a></li> <li><a href="/wiki/System_Y" title="System Y">System Y</a></li> <li><a href="/wiki/ADSL_Max" class="mw-redirect" title="ADSL Max">ADSL Max</a></li> <li><a href="/wiki/Redcare" title="Redcare">Redcare</a></li> <li><a href="/wiki/1-5-7-1" title="1-5-7-1">1-5-7-1</a></li> <li><a href="/wiki/YouView" title="YouView">YouView</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:3em;text-align:left;background-color:#eee">Defunct</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Digital_Access_Signalling_System_1" title="Digital Access Signalling System 1">Digital Access Signalling System 1</a></li> <li><a href="/wiki/Digital_Private_Network_Signalling_System" title="Digital Private Network Signalling System">Digital Private Network Signalling System</a></li> <li><a href="/wiki/Fixed-Mobile_Convergence_Alliance" title="Fixed-Mobile Convergence Alliance">Fixed-Mobile Convergence Alliance</a></li> <li><a href="/wiki/Go!Messenger" class="mw-redirect" title="Go!Messenger">Go!Messenger</a></li> <li><a href="/wiki/International_Packet_Switched_Service" title="International Packet Switched Service">International Packet Switched Service</a></li> <li><a href="/wiki/NHSnet" class="mw-redirect" title="NHSnet">NHSnet</a></li> <li><a href="/wiki/N3_(NHS)" class="mw-redirect" title="N3 (NHS)">N3 (NHS)</a></li> <li><a href="/wiki/Packet_Switch_Stream" title="Packet Switch Stream">Packet Switch Stream</a></li> <li><a href="/wiki/Prestel" title="Prestel">Prestel</a></li> <li><a href="/wiki/TXE" title="TXE">TXE</a></li> <li><a href="/wiki/TXK" title="TXK">TXK</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">History</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 href="/wiki/BT_Group#History" title="BT Group">BT Group</a></li> <li><a href="/wiki/General_Post_Office" title="General Post Office">General Post Office</a></li> <li><a href="/wiki/Electric_Telegraph_Company" title="Electric Telegraph Company">Electric Telegraph Company</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</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/BT_Archives" title="BT Archives">BT Archives</a></li> <li><a href="/wiki/BT_Museum" title="BT Museum">BT Museum</a></li> <li><a href="/wiki/BT_Digital_Music_Awards" title="BT Digital Music Awards">BT Digital Music Awards</a></li> <li><a href="/wiki/BT_Sport_Action_Woman_Awards" title="BT Sport Action Woman Awards">BT Sport Action Woman Awards</a></li> <li><a href="/wiki/Buzby" title="Buzby">Buzby</a></li> <li><a href="/wiki/Connected_Earth" title="Connected Earth">Connected Earth</a></li> <li><a href="/wiki/Category:BT_Group_people" title="Category:BT Group people">People</a></li> <li><a href="/wiki/Young_Scientist_and_Technology_Exhibition" title="Young Scientist and Technology Exhibition">Young Scientist and Technology Exhibition</a></li> <li><a href="/wiki/British_Telecommunications_plc_v._Prodigy" title="British Telecommunications plc v. Prodigy">British Telecommunications plc v. Prodigy</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="3"><div> <ul><li><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:BT_Group" title="Category:BT Group"><b>Category</b></a></li> <li><span class="noviewer" typeof="mw:File"><span title="Commons page"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/20px-Commons-logo.svg.png" decoding="async" width="12" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/40px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span> <a href="https://commons.wikimedia.org/wiki/Category:BT_Group" class="extiw" title="commons:Category:BT Group"><b>Commons</b></a></li></ul> </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="UK_mobile_network_operators225" style="padding:3px"><table class="nowraplinks hlist 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:UK_mobile_phone_companies" title="Template:UK mobile phone companies"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:UK_mobile_phone_companies" title="Template talk:UK mobile phone companies"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:UK_mobile_phone_companies" title="Special:EditPage/Template:UK mobile phone companies"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="UK_mobile_network_operators225" style="font-size:114%;margin:0 4em"><a href="/wiki/List_of_mobile_network_operators_of_Europe#United_Kingdom" class="mw-redirect" title="List of mobile network operators of Europe">UK mobile network operators</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Mobile network<br />operators</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Current</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 href="/wiki/EE_(telecommunications)" title="EE (telecommunications)">EE</a></li> <li><a class="mw-selflink selflink">O2</a></li> <li><a href="/wiki/Three_UK" title="Three UK">Three</a></li> <li><a href="/wiki/Vodafone_UK" title="Vodafone UK">Vodafone</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Former</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/Orange_UK" title="Orange UK">Orange</a></li> <li><a href="/wiki/T-Mobile_UK" title="T-Mobile UK">T-Mobile</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_United_Kingdom_mobile_virtual_network_operators" class="mw-redirect" title="List of United Kingdom mobile virtual network operators">Mobile virtual<br />network operators <br />(MVNOs)</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Current</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 href="/wiki/1pMobile" class="mw-redirect" title="1pMobile">1pMobile</a></li> <li><a href="/wiki/Asda_Mobile" title="Asda Mobile">Asda Mobile</a></li> <li><a href="/wiki/BT_Mobile" title="BT Mobile">BT Mobile</a></li> <li><a href="/wiki/China_Mobile#United_Kingdom" title="China Mobile">CMLink</a></li> <li><a href="/wiki/Econet_Global#Econet_Wireless_International" title="Econet Global">Econet</a></li> <li><a href="/wiki/Ecotricity#Mobile_phone_network" title="Ecotricity">Ecotalk</a></li> <li><a href="/wiki/FreedomPop" title="FreedomPop">FreedomPop</a></li> <li><a href="/wiki/Giffgaff" title="Giffgaff">Giffgaff</a></li> <li><a href="/wiki/ID_Mobile" title="ID Mobile">iD Mobile</a></li> <li><a href="/wiki/KCOM_Group" title="KCOM Group">KC Mobile</a></li> <li><a href="/wiki/Lebara" title="Lebara">Lebara</a></li> <li><a href="/wiki/Lycamobile" title="Lycamobile">Lycamobile</a></li> <li><a href="/wiki/Sky_UK" title="Sky UK">Sky</a></li> <li><a href="/wiki/SMARTY" title="SMARTY">SMARTY</a></li> <li><a href="/wiki/Spusu" title="Spusu">spusu</a></li> <li><a href="/wiki/Talkmobile" title="Talkmobile">Talkmobile</a></li> <li><a href="/wiki/Telecom_Plus" title="Telecom Plus">Telecom Plus</a></li> <li><a href="/wiki/Tesco_Mobile" title="Tesco Mobile">Tesco Mobile</a></li> <li><a href="/wiki/Truphone" title="Truphone">Truphone</a></li> <li><a href="/wiki/Utility_Warehouse" title="Utility Warehouse">Utility Warehouse</a></li> <li><a href="/wiki/Vodafone_UK#VOXI_by_Vodafone" title="Vodafone UK">VOXI</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Former</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/AfriMobile" title="AfriMobile">AfriMobile</a></li> <li><a href="/wiki/Blyk" title="Blyk">Blyk</a></li> <li><a href="/wiki/BT_Business_and_Public_Sector" title="BT Business and Public Sector">BT Business Mobile</a></li> <li><a href="/wiki/The_Phone_Co-op" title="The Phone Co-op">Co-operative</a></li> <li><a href="/wiki/EE_(telecommunications)#Virtual_network_agreements" title="EE (telecommunications)">LIFE</a></li> <li><a href="/wiki/Easymobile" class="mw-redirect" title="Easymobile">Easymobile</a></li> <li><a href="/wiki/Family_Mobile" title="Family Mobile">Family</a></li> <li><a href="/wiki/Fresh_Mobile" class="mw-redirect" title="Fresh Mobile">Fresh</a></li> <li><a href="/wiki/Lycamobile#GT_Mobile" title="Lycamobile">GT Mobile</a></li> <li><a href="/wiki/Mobile_by_Sainsbury%27s" title="Mobile by Sainsbury's">Sainsbury's</a></li> <li><a href="/wiki/Ovivo_Mobile" title="Ovivo Mobile">Ovivo</a></li> <li><a href="/wiki/The_People%27s_Operator" title="The People's Operator">People's</a></li> <li><a href="/wiki/Plusnet" title="Plusnet">Plusnet</a></li> <li><a href="/wiki/Post_Office_Mobile" class="mw-redirect" title="Post Office Mobile">Post Office</a></li> <li><a href="/wiki/Royal_Society_for_the_Prevention_of_Cruelty_to_Animals" class="mw-redirect" title="Royal Society for the Prevention of Cruelty to Animals">RSPCA Mobile</a></li> <li><a href="/wiki/TalkTalk_Mobile" class="mw-redirect" title="TalkTalk Mobile">TalkTalk</a></li> <li><a href="/wiki/Virgin_Mobile_(UK)" title="Virgin Mobile (UK)">Virgin</a></li></ul> </div></td></tr></tbody></table><div></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="Telecommunications_industry_in_the_United_Kingdom636" style="padding:3px"><table class="nowraplinks hlist 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:Telecommunications_industry_in_the_United_Kingdom" title="Template:Telecommunications industry in the United Kingdom"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Telecommunications_industry_in_the_United_Kingdom" title="Template talk:Telecommunications industry in the United Kingdom"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Telecommunications_industry_in_the_United_Kingdom" title="Special:EditPage/Template:Telecommunications industry in the United Kingdom"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Telecommunications_industry_in_the_United_Kingdom636" style="font-size:114%;margin:0 4em"><a href="/wiki/Telecommunications_in_the_United_Kingdom" title="Telecommunications in the United Kingdom">Telecommunications industry in the United Kingdom</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><a href="/wiki/Economy_of_the_United_Kingdom" title="Economy of the United Kingdom">Economy of the United Kingdom</a></li> <li><a href="/wiki/Science_and_technology_in_the_United_Kingdom" title="Science and technology in the United Kingdom">Science and technology in the United Kingdom</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left">Companies</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left; background-color:#eee">Infrastructure<br />providers</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 href="/wiki/Arqiva" title="Arqiva">Arqiva</a></li> <li><a href="/wiki/Babcock_International" title="Babcock International">Babcock International</a></li> <li><a href="/wiki/BT_Wholesale_and_Ventures" title="BT Wholesale and Ventures">BT Wholesale and Ventures</a></li> <li><a href="/wiki/CityFibre" title="CityFibre">CityFibre</a></li> <li><a href="/wiki/KCOM_Group" title="KCOM Group">KCOM Group</a></li> <li><a href="/wiki/Nexfibre" title="Nexfibre">Nexfibre</a></li> <li><a href="/wiki/Openreach" title="Openreach">Openreach</a></li> <li><a href="/wiki/Interxion" title="Interxion">Interxion</a></li> <li><a href="/wiki/TelecityGroup" title="TelecityGroup">TelecityGroup</a></li> <li><a href="/wiki/Telehouse_Europe" title="Telehouse Europe">Telehouse Europe</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left; background-color:#eee">Service<br />providers</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Current</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/Andrews_%26_Arnold" title="Andrews & Arnold">Andrews & Arnold</a></li> <li><a href="/wiki/Asda_Mobile" title="Asda Mobile">Asda Mobile</a></li> <li><a href="/wiki/BT_Group" title="BT Group">BT Group</a> <ul><li><small><a href="/wiki/BT_Consumer" class="mw-redirect" title="BT Consumer">BT Consumer</a></small></li> <li><small><a href="/wiki/BT_Business_and_Public_Sector" title="BT Business and Public Sector">BT Business and Public Sector</a></small></li> <li><small><a href="/wiki/BT_Global_Services" title="BT Global Services">BT Global Services</a></small></li> <li><small><a href="/wiki/EE_(telecommunications)" title="EE (telecommunications)">EE</a></small></li> <li><small><a href="/wiki/Plusnet" title="Plusnet">Plusnet</a></small></li></ul></li> <li><a href="/wiki/China_Mobile" title="China Mobile">China Mobile</a> <ul><li><small><a href="/wiki/China_Mobile#United_Kingdom" title="China Mobile">CMLink</a></small></li></ul></li> <li><a href="/wiki/Claranet" title="Claranet">Claranet</a></li> <li><a href="/wiki/Colt_Technology_Services" title="Colt Technology Services">Colt Group</a></li> <li><a href="/wiki/The_Phone_Co-op" title="The Phone Co-op">The Co-operative</a></li> <li><a href="/wiki/Cable_%26_Wireless_Communications" title="Cable & Wireless Communications">Cable & Wireless</a></li> <li><a href="/wiki/Entanet" title="Entanet">Entanet</a></li> <li><a href="/wiki/Inmarsat" title="Inmarsat">Inmarsat</a></li> <li><a href="/wiki/KCOM_Group" title="KCOM Group">KCOM Group</a> <ul><li><small><a href="/wiki/Eclipse_Internet" title="Eclipse Internet">Eclipse Internet</a></small></li></ul></li> <li><a href="/wiki/Lebara" title="Lebara">Lebara</a></li> <li><a href="/wiki/Lycamobile" title="Lycamobile">Lycamobile</a></li> <li><a href="/wiki/Sky_Group" title="Sky Group">Sky</a> <ul><li><small><a href="/wiki/Sky_Broadband" title="Sky Broadband">Sky Broadband</a></small></li></ul></li> <li><a href="/wiki/Spusu" title="Spusu">spusu</a></li> <li><a href="/wiki/TalkTalk_Group" title="TalkTalk Group">TalkTalk</a> <ul><li><small><a href="/wiki/TalkTalk_Business" title="TalkTalk Business">Business</a></small></li> <li><small><a href="/wiki/TalkTalk_Group#Mobile_telephony" title="TalkTalk Group">Mobile</a></small></li> <li><small><a href="/wiki/TalkTalk_TV" title="TalkTalk TV">TV</a></small></li></ul></li> <li><a href="/wiki/Telecom_Plus" title="Telecom Plus">Telecom Plus</a></li> <li><a href="/wiki/Tesco_Mobile" title="Tesco Mobile">Tesco</a></li> <li><a href="/wiki/3_(company)" title="3 (company)">Three</a> <ul><li><small><a href="/wiki/Three_UK" title="Three UK">Three UK</a></small></li> <li><small><a href="/wiki/SMARTY" title="SMARTY">SMARTY</a></small></li></ul></li> <li><a href="/wiki/Truphone" title="Truphone">Tru</a></li> <li><a href="/wiki/Virgin_Media_O2" title="Virgin Media O2">Virgin Media O2</a> <ul><li><small><a class="mw-selflink selflink">O2</a></small></li> <li><small><a href="/wiki/Giffgaff" title="Giffgaff">Giffgaff</a></small></li> <li><small><a href="/wiki/Virgin_Media" title="Virgin Media">Virgin Media</a></small> <ul><li><small><a href="/wiki/Virgin_Media_Business" title="Virgin Media Business">Virgin Media Business</a></small></li></ul></li></ul></li> <li><a href="/wiki/Vodafone" title="Vodafone">Vodafone</a> <ul><li><small><a href="/wiki/Vodafone_UK" title="Vodafone UK">Vodafone UK</a></small></li> <li><small><a href="/wiki/Talkmobile" title="Talkmobile">Talkmobile</a></small></li></ul></li> <li><a href="/wiki/Voipfone" title="Voipfone">Voipfone</a></li> <li><a href="/wiki/WightFibre" title="WightFibre">WightFibre</a></li> <li><a href="/wiki/Zen_Internet" title="Zen Internet">Zen Internet</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Defunct</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 href="/wiki/AOL_Broadband" title="AOL Broadband">AOL</a></li> <li><a href="/wiki/Atlantic_Telegraph_Company" title="Atlantic Telegraph Company">Atlantic Telegraph Company</a></li> <li><a href="/wiki/Be_Un_Limited" title="Be Un Limited">Be Un Limited</a></li> <li><a href="/wiki/Bonelli%27s_Electric_Telegraph_Company" title="Bonelli's Electric Telegraph Company">Bonelli's Electric Telegraph Company</a></li> <li><a href="/wiki/British_and_Irish_Magnetic_Telegraph_Company" title="British and Irish Magnetic Telegraph Company">British and Irish Magnetic Telegraph</a></li> <li><a href="/wiki/Cable_%26_Wireless_plc" title="Cable & Wireless plc">Cable & Wireless plc</a></li> <li><a href="/wiki/Cable_%26_Wireless_Worldwide" title="Cable & Wireless Worldwide">Cable & Wireless Worldwide</a></li> <li><a href="/wiki/Electric_Telegraph_Company" title="Electric Telegraph Company">Electric Telegraph Company</a></li> <li><a href="/wiki/Energis" title="Energis">Energis</a></li> <li><a href="/wiki/Family_Mobile" title="Family Mobile">Family</a></li> <li><a href="/wiki/General_Post_Office" title="General Post Office">General Post Office</a></li> <li><a href="/wiki/Gutta_Percha_Company" title="Gutta Percha Company">Gutta Percha Company</a></li> <li><a href="/wiki/Ionica_(company)" title="Ionica (company)">Ionica</a></li> <li><a href="/wiki/London_District_Telegraph_Company" title="London District Telegraph Company">London & Provincial District Telegraph</a></li> <li><a href="/wiki/Mercury_Communications" title="Mercury Communications">Mercury</a></li> <li><a href="/wiki/National_Telephone_Company" title="National Telephone Company">National Telephone Company</a></li> <li><a href="/wiki/NTL_Incorporated" title="NTL Incorporated">NTL</a></li> <li><a href="/wiki/Orange_UK" title="Orange UK">Orange</a></li> <li><a href="/wiki/Ovivo_Mobile" title="Ovivo Mobile">Ovivo</a></li> <li><a href="/wiki/Post_Office_Limited" title="Post Office Limited">Post Office</a></li> <li><a href="/wiki/Pipex" title="Pipex">Pipex</a></li> <li><a href="/wiki/Rabbit_(telecommunications)" title="Rabbit (telecommunications)">Rabbit</a></li> <li><a href="/wiki/Mobile_by_Sainsbury%27s" title="Mobile by Sainsbury's">Sainsbury's</a></li> <li><a href="/wiki/Submarine_Telegraph_Company" title="Submarine Telegraph Company">Submarine Telegraph</a></li> <li><a href="/wiki/Tiscali_UK" class="mw-redirect" title="Tiscali UK">Tiscali UK</a></li> <li><a href="/wiki/T-Mobile_UK" title="T-Mobile UK">T-Mobile</a></li> <li><a href="/wiki/Trunk_Networks" title="Trunk Networks">Trunk Networks</a> <ul><li><small>Leetline</small></li> <li><small>No One</small></li></ul></li> <li><a href="/wiki/Universal_Private_Telegraph_Company" title="Universal Private Telegraph Company">Universal Private Telegraph</a></li> <li><a href="/wiki/Virgin_Mobile_(UK)" title="Virgin Mobile (UK)">Virgin Mobile</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left; background-color:#eee">Suppliers</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Current</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/Arm_Holdings" title="Arm Holdings">Arm Holdings</a></li> <li><a href="/wiki/Icera" title="Icera">Icera</a></li> <li><a href="/wiki/Metaswitch" title="Metaswitch">Metaswitch</a></li> <li><a href="/wiki/Sarantel" class="mw-redirect" title="Sarantel">Sarantel</a></li> <li><a href="/wiki/Spirent" title="Spirent">Spirent</a></li> <li><a href="/wiki/Telent" title="Telent">Telent</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Defunct</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 href="/wiki/CSR_plc" title="CSR plc">CSR</a></li> <li><a href="/wiki/GEC_Plessey_Telecommunications" title="GEC Plessey Telecommunications">GEC Plessey</a></li> <li><a href="/wiki/Marconi_Company" title="Marconi Company">Marconi Company</a></li> <li><a href="/wiki/Marconi_Communications" title="Marconi Communications">Marconi Communications</a></li> <li><a href="/wiki/Pace_plc" title="Pace plc">Pace</a></li> <li><a href="/wiki/PicoChip" title="PicoChip">PicoChip</a></li> <li><a href="/wiki/Standard_Telephones_and_Cables" title="Standard Telephones and Cables">Standard</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left; background-color:#eee">Other</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/Carphone_Warehouse" title="Carphone Warehouse">Carphone Warehouse</a></li> <li><a href="/wiki/Hibu" title="Hibu">Hibu</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left">Government and<br />regulatory bodies</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 href="/wiki/Broadband_Stakeholder_Group" title="Broadband Stakeholder Group">Broadband Stakeholder Group</a></li> <li><a href="/wiki/Defence_Science_and_Technology_Laboratory" title="Defence Science and Technology Laboratory">Defence Science and Technology Laboratory</a></li> <li><a href="/wiki/European_Conference_of_Postal_and_Telecommunications_Administrations" title="European Conference of Postal and Telecommunications Administrations">European Conference of Postal and Telecommunications Administrations</a></li> <li><a href="/wiki/International_Telecommunication_Union" title="International Telecommunication Union">International Telecommunication Union</a></li> <li><a href="/wiki/Ofcom" title="Ofcom">Ofcom</a></li> <li><a href="/wiki/Phone-paid_Services_Authority" title="Phone-paid Services Authority">Phone-paid Services Authority</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left">Industry bodies</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/GSM_Association" class="mw-redirect" title="GSM Association">GSM Association</a></li> <li><a href="/wiki/Internet_Service_Providers_Association_(United_Kingdom)" title="Internet Service Providers Association (United Kingdom)">Internet Service Providers Association</a></li> <li><a href="/wiki/Internet_Telephony_Services_Providers%27_Association" title="Internet Telephony Services Providers' Association">Internet Telephony Services Providers' Association</a></li> <li><a href="/wiki/LONAP" title="LONAP">LONAP</a></li> <li><a href="/wiki/London_Internet_Exchange" title="London Internet Exchange">London Internet Exchange</a></li> <li><a href="/wiki/Manchester_Network_Access_Point" title="Manchester Network Access Point">MaNAP</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left">In <a href="/wiki/Crown_Dependencies" title="Crown Dependencies">Crown Dependencies</a> and<br /><a href="/wiki/British_Overseas_Territories" title="British Overseas Territories">British Overseas Territories</a></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 href="/wiki/Akrotiri_and_Dhekelia#Communications" title="Akrotiri and Dhekelia">Akrotiri and Dhekelia</a></li> <li><a href="/wiki/Telecommunications_in_Anguilla" title="Telecommunications in Anguilla">Anguilla</a></li> <li><a href="/wiki/Telecommunications_in_Antarctica" title="Telecommunications in Antarctica">Antarctica</a> (including <a href="/wiki/British_Antarctic_Territory" title="British Antarctic Territory">British Antarctic Territory</a>)</li> <li><a href="/wiki/Telecommunications_in_Ascension_Island" class="mw-redirect" title="Telecommunications in Ascension Island">Ascension Island</a></li> <li><a href="/wiki/Telecommunications_in_Bermuda" title="Telecommunications in Bermuda">Bermuda</a></li> <li><a href="/wiki/Telecommunications_in_the_British_Indian_Ocean_Territory" class="mw-redirect" title="Telecommunications in the British Indian Ocean Territory">British Indian Ocean Territory</a></li> <li><a href="/wiki/Telecommunications_in_the_British_Virgin_Islands" title="Telecommunications in the British Virgin Islands">British Virgin Islands</a></li> <li><a href="/wiki/Telecommunications_in_the_Cayman_Islands" title="Telecommunications in the Cayman Islands">Cayman Islands</a></li> <li><a href="/wiki/Telecommunications_in_the_Falkland_Islands" title="Telecommunications in the Falkland Islands">Falkland Islands</a></li> <li><a href="/wiki/Telecommunications_in_Gibraltar" class="mw-redirect" title="Telecommunications in Gibraltar">Gibraltar</a></li> <li><a href="/wiki/Telecommunications_in_Guernsey" title="Telecommunications in Guernsey">Guernsey</a></li> <li><a href="/wiki/Telecommunications_in_the_Isle_of_Man" class="mw-redirect" title="Telecommunications in the Isle of Man">Isle of Man</a></li> <li><a href="/wiki/Telecommunications_in_Jersey" title="Telecommunications in Jersey">Jersey</a></li> <li><a href="/wiki/Telecommunications_in_Montserrat" title="Telecommunications in Montserrat">Montserrat</a></li> <li><a href="/wiki/Telecommunications_in_the_Pitcairn_Islands" class="mw-redirect" title="Telecommunications in the Pitcairn Islands">Pitcairn Islands</a></li> <li><a href="/wiki/Telecommunications_in_Saint_Helena" class="mw-redirect" title="Telecommunications in Saint Helena">Saint Helena</a></li> <li><a href="/wiki/Telecommunications_in_South_Georgia_and_the_South_Sandwich_Islands" class="mw-redirect" title="Telecommunications in South Georgia and the South Sandwich Islands">South Georgia and South Sandwich Islands</a></li> <li><a href="/wiki/Telecommunications_in_the_Turks_and_Caicos_Islands" title="Telecommunications in the Turks and Caicos Islands">Turks and Caicos Islands</a></li> <li><a href="/wiki/Tristan_da_Cunha#Communications" title="Tristan da Cunha">Tristan da Cunha</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align:left">History,<br />legislation</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/Adastral_Park" title="Adastral Park">Adastral Park</a></li> <li><a href="/wiki/British_Approvals_Board_for_Telecommunications" title="British Approvals Board for Telecommunications">British Approvals Board for Telecommunications</a></li> <li><a href="/wiki/British_Telecommunications_Act_1981" title="British Telecommunications Act 1981">British Telecommunications Act 1981</a></li> <li><a href="/wiki/British_telephone_socket" title="British telephone socket">British telephone socket</a></li> <li><a href="/wiki/BT_Research" title="BT Research">BT Research</a></li> <li><a href="/wiki/BT_site_engineering_code" title="BT site engineering code">BT site engineering code</a></li> <li><a href="/wiki/Buzby" title="Buzby">Buzby</a></li> <li><a href="/wiki/Communications_Act_2003" title="Communications Act 2003">Communications Act 2003</a></li> <li><a href="/wiki/Category:Earth_stations_in_the_United_Kingdom" title="Category:Earth stations in the United Kingdom">Earth stations in UK</a></li> <li><a href="/wiki/Hull_Colour_Pages" title="Hull Colour Pages">Hull Colour Pages</a></li> <li><a href="/wiki/Interception_of_Communications_Act_1985" title="Interception of Communications Act 1985">Interception of Communications Act 1985</a></li> <li><a href="/wiki/Internet_in_the_United_Kingdom" title="Internet in the United Kingdom">Internet in UK</a></li> <li><a href="/wiki/Telegraph_Act" title="Telegraph Act">Telegraph Act</a></li> <li><a href="/wiki/Telegraph_Act_1868" title="Telegraph Act 1868">Telegraph Act 1868</a></li> <li><a href="/wiki/Telegraph_Act_1885" title="Telegraph Act 1885">Telegraph Act 1885</a></li> <li><a href="/wiki/Telephone_numbers_in_the_United_Kingdom" title="Telephone numbers in the United Kingdom">Telephone numbers in UK</a></li> <li><a href="/wiki/UK_telephone_code_misconceptions" title="UK telephone code misconceptions">UK telephone code misconceptions</a></li> <li><a href="/wiki/Web_blocking_in_the_United_Kingdom" title="Web blocking in the United Kingdom">Web blocking in UK</a></li></ul> </div></td></tr><tr><td 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