Packet Clearing House

<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>Packet Clearing House | PCH </title> <meta name="description" content="Tagline" />   <link rel="stylesheet" href="https://www.pch.net/assets/css/bootstrap.css?2025-03-21"> <link rel="stylesheet" href="https://www.pch.net/assets/css/font-awesome.css?2025-03-21"> <link rel="stylesheet" href="https://www.pch.net/assets/css/Helvetica_Black_unhinted.css?2025-03-21"> <style> .announcement { margin-left: -15px !important; margin-right: -15px !important; padding: 10px !important; font-size: smaller !important; background-color: #6e93b4 !important; color: white !important; display: none; } #wrap { /*margin: 57px auto -60px !important;*/ } .page-separator { /*top: 154px !important;*/ } @media (max-width: 768px) { .page-separator { /*top: 110px !important;*/ } } </style> <script type="text/javascript"> URL_ROOT = "https://www.pch.net/"; </script> <script src="https://www.pch.net/assets/js/vendor/jquery.js?2025-03-27"></script> <script src="https://www.pch.net/assets/js/vendor/bootstrap.js?2025-03-27"></script> <script src="https://www.pch.net/assets/js/modules/notification.js?2025-03-27"></script> <script src="https://www.pch.net/assets/js/modules/modal.js?2025-03-27"></script> <script src="https://www.pch.net/assets/js/global.js?2025-03-27"></script> <link rel="stylesheet" href="https://www.pch.net/assets/css/style.css?2025-03-21">   <link rel="icon" type="image/png" href="https://www.pch.net/assets/img/pch-logo-32x32.png" /> </head> <body> <div class="modal fade" id="modal" tabindex="-1" role="dialog" aria-hidden="true"></div> <div id="wrap"> <div class="header_print"> <img src="https://www.pch.net/assets/img/pch_logo.svg" alt="PCH" width="135px" height="60px"> </div> <header class="no-print navbar navbar-pch navbar-fixed-top" id="top" role="banner"> <div class="container"> <div class="announcement"> Website maintenance planned from Mar 1st 05:00UTC<br/> until Mar 4th 05:00UTC. 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IXPs are the places where Internet Service Providers interconnect their networks, to exchange traffic between their customers and create Internet bandwidth. PCH assists in the construction of IXPs, and provides equipment, training, and ongoing support to IXPs and their operators. Over the past thirty years, PCH has helped build more than half of the world鈥檚 IXPs, and has provided assistance of some sort to more than half of all the world鈥檚 IXPs. PCH also maintains the <a href="https://prefix.pch.net/applications/ixpdir/">global directory of IXPs</a>, and publishes statistics about their <a href="/resources/Papers/peering-survey/">use</a> and <a href="/ixp/summary_growth_by_country">growth</a>.<br/> <a href="/services/internet_exchange_points">More details...</a></p> </div> <div class="col-sm-12 col-md-4"> <h2>Core of the Domain Name System</h2> <p>PCH has been working since 1995 to make the Domain Name System faster, more scalable, and more resilient against attack. PCH pioneered the use of <a href="/services/dns_anycast">DNS anycast to distribute DNS load</a> among more servers in more places, anycasting top-level domain nameservers since 1997, and root nameservers since 2001. PCH is the largest authoritative DNS service network in the world, hosting multiple root letters and nearly 400 top-level domains on thousands of servers in 326 locations around the world. PCH is also the operator of the only <a href="/services/dnssec">FIPS 140-2 Level 4 DNSSEC signing platform</a> other than the root itself.<br/> <a href="/services/dns_anycast">More details...</a></p> </div> <div class="col-sm-12 col-md-4"> <h2>Regulatory & Policy</h2> <p>PCH conducts more than 100 workshops each year on Internet regulatory theory, governance, and economics for audiences ranging from Internet service provider engineers to communications, economic development, and defense ministers. PCH also works in conjunction with and in support of other Internet governance organizations and fora like the global network operators groups, the Internet Governance Forum, the OECD, ICANN, NetMundial, the Regional Internet Registries, and many others. PCH also maintains a <a href="https://prefix.pch.net/applications/internet-governance-meetings/">global calendar</a> of Internet operations and governance meetings.<br/> <a href="/services/policy">More details...</a></p> </div> </div> <div class="clearfix"></div> <noscript> <hr /> <p><strong>Note:</strong> This site requires JavaScript for much of it to work. Please consider enabling it.</p> </noscript>  </main> <script src="https://www.pch.net/assets/js/pages/home.js?2025-03-27"></script> </div>  <footer class="full_footer no-print"> <div class="container"> <div class="row"> <div class="col-xs-4 pull-right contact" > <ul class="nav navbar-nav navbar-footer navbar-right "> <li><a href="https://www.pch.net/about/privacy">Privacy</a></li> <li><a href="https://www.pch.net/about/donate">Donate</a></li> </ul> </div> <div class="col-xs-8 copyright "> <img src="https://www.pch.net/assets/img/by-nc-sa.svg" /> This work is licensed under a <a href='https://creativecommons.org/licenses/by-nc-sa/3.0/deed.en_US'>Creative Commons Attribution-NonCommercial-ShareAlike 3.0</a> License. </div> </div> </div> </footer> </body> </html>

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Packet Clearing House | PCH