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The system has evolved into a <a href="http://www.nro.net/accountability/rir-accountability/">stable</a>, robust environment for Internet address management, maintained through self-regulatory practices. It maintains its legitimacy and relevance by firmly adhering to an open, transparent, multi-stakeholder decision-making processes.</p> <h3>PTI and the IANA Functions</h3> <p>The Internet Assigned Numbers Authority (<a href="http://www.iana.org/" target="_blank" rel="noopener">IANA</a>) functions are a set of administrative tasks critical to ensuring the global coordination of the DNS root zone, IP addressing and protocol parameters. The IANA functions are performed by聽Public Technical Identifiers (<a href="https://pti.icann.org/" target="_blank" rel="noopener">PTI</a>) under聽<a href="https://pti.icann.org/agreements" target="_blank" rel="noopener">contracts and sub-contracts</a>聽with the Internet Corporation for Assigned Names and Numbers (<a href="http://www.icann.org/" target="_blank" rel="noopener">ICANN)</a>. PTI聽allocates Internet address space to the five RIRs according to their established needs. The policies that govern how PTI allocates Internet number resources to the RIRs are developed by the global RIR community using the global Policy Development Process (<a href="http://www.nro.net/policy/global/">GPDP</a>).</p> <h3>Role of the RIRs</h3> <p>RIRs allocate and register blocks of <a href="http://www.nro.net/about/rirs/internet-number-resources/">Internet number resources</a>聽(IPv4, IPv6 and ASNs) and provide related services to Internet service providers (ISPs) and other organizations in their geographical service regions. The <a href="http://www.nro.net/policy/regional/">policies</a> that govern how each RIR allocates Internet number resources to its members are defined by each RIR’s community.聽The RIRs also maintain a whois database containing all allocated Internet number resources to ensure the efficient functioning of the global Internet.</p> <p><a href="https://www.afrinic.net/en/services/whois-query" target="_blank" rel="noopener">AFRINIC Database</a> | <a href="https://wq.apnic.net/static/search.html" target="_blank" rel="noopener">APNIC Database</a> | <a href="https://whois.arin.net/ui/advanced.jsp" target="_blank" rel="noopener">ARIN Database</a> | <a href="https://lacnic.net/cgi-bin/lacnic/whois" target="_blank" rel="noopener">LACNIC Database</a> | <a href="https://www.ripe.net/manage-ips-and-asns/db" target="_blank" rel="noopener">RIPE Database</a></p> <p>The <a href="http://www.nro.net/about/">NRO</a> itself does not register or allocate Internet number resources or develop policy.</p> <h3>Coordination for Technical Communities</h3> <p>Each RIR also acts as the secretariat for its regional Internet technical community, providing administration and coordination support and facilitating the Policy Development Process (<a href="http://www.nro.net/policy/">PDP</a>).</p> <h3><strong><br /> Getting Internet Number Resources</strong></h3> <p>To receive blocks of Internet number resources, an organization must usually become a member of an RIR. The RIR allocates Internet number resources to its members, which are known as Local Internet Registries (LIRs) or, in some regions, National Internet Registries (NIRs), based on justified need. LIRs and NIRs then allocate the resources to their own customers or use them in their own networks. You can find out which RIR serves your country <a href="http://www.nro.net/about/rirs/country-codes-and-rir-region/">here</a>. And you can find out more about each RIR’s membership requirements here:</p> <p> </p> <table style="height: 221px;" width="1080"> <thead> <tr> <th style="width: 263px;">Regional Internet Registry (RIR)</th> <th style="width: 263px;">Region</th> </tr> </thead> <tbody> <tr> <td style="width: 263px;">African Network Coordination Centre (<a href="http://www.afrinic.net" target="_blank" rel="noopener">AFRINIC</a>)</td> <td style="width: 263px;">Africa</td> </tr> <tr> <td style="width: 263px;">Asia-Pacific Network Coordination Centre (<a href="http://www.apnic.net" target="_blank" rel="noopener">APNIC</a>)</td> <td style="width: 263px;">Asia-Pacific</td> </tr> <tr> <td style="width: 263px;">American Registry for Internet Numbers (<a href="http://www.arin.net" target="_blank" rel="noopener">ARIN</a>)</td> <td style="width: 263px;">United States, Canada, many Caribbean and North Atlantic islands</td> </tr> <tr> <td style="width: 263px;">聽Latin America and Caribbean Network Information Centre (<a href="http://www.lacnic.net" target="_blank" rel="noopener">LACNIC</a>)</td> <td style="width: 263px;">聽Latin America and the Caribbean</td> </tr> <tr> <td style="width: 263px;">R茅seaux IP Europ茅ens Network Coordination Centre (<a href="http://www.ripe.net" target="_blank" rel="noopener">RIPE NCC</a>)</td> <td style="width: 263px;">聽Europe, the Middle East and parts of Central Asia</td> </tr> </tbody> </table> <p> </p> <hr /> <h6>More Information:</h6> <ul> <li><a href="http://www.nro.net/about/rirs/the-internet-registry-system/rir-history/">History of the RIRs and the RIR System</a></li> <li><a href="http://www.nro.net/about/rirs/">About the RIRs</a></li> <li><a href="http://www.nro.net/about/rirs/country-codes-and-rir-region/">List of countries served by each RIR</a></li> </ul> <h3></h3> <h3></h3> <p> </p> <p class='last-modified'>Last modified on 06/11/2018</p> </div>  </div>  </div>  </div>  <footer role="contentinfo"> <div id="inner-footer" class="container"> <div class="row"> <div class="col-md-3 col-xs-6 col-lg-2 footer-item contact-info"> <h4>Contact Us</h4> <div class="contact-info clearfix"> <p><a href="mailto:secretariat@nro.net"><b>secretariat@nro.net</b></a></p> <div class="social-media"> <a href="https://twitter.com/thenro?lang=en" target="blank"><i class="fa fa-twitter fa-2x"></i></a> </div>  <div class="site-info"> © 2024 The Number Resource Organization. </div> <p class='site-credit'>Site by <a href="https://ardesign.us" target="_blank">AR Design</a></p> </div> </div>  <div class="col-md-3 col-sm-6 col-xs-6 col-lg-2 footer-item footer-menu-column"> <h4>Information</h4> <div class="menu-footer-menu-container"><ul id="menu-footer-menu" class="menu"><li id="menu-item-29891" class="menu-item menu-item-type-post_type menu-item-object-page current-page-ancestor menu-item-29891"><a href="https://www.nro.net/about/">About</a></li> <li id="menu-item-29886" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-29886"><a href="https://www.nro.net/accountability/">Accountability</a></li> <li id="menu-item-29887" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-29887"><a href="https://www.nro.net/internet-governance/">Internet Governance</a></li> <li id="menu-item-29888" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-29888"><a href="https://www.nro.net/technical-coordination/">Technical Coordination</a></li> <li id="menu-item-29889" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-29889"><a href="https://www.nro.net/policy/">Policy</a></li> <li id="menu-item-29890" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-29890"><a href="https://www.nro.net/documents/">Document Archive</a></li> </ul></div> </div>  <div class="col-md-3 aso-logo"> <a href="http://www.aso.icann.org" target="_blank"> <img src="/wp-content/uploads/ASO-logo-79x199.png" alt="AFRINIC" class=""> </a> </div> </div>  </div>  </div>  </footer>  <script type="text/javascript" src="https://www.nro.net/wp-includes/js/dist/hooks.min.js?ver=2810c76e705dd1a53b18" id="wp-hooks-js"></script> <script type="text/javascript" src="https://www.nro.net/wp-includes/js/dist/i18n.min.js?ver=5e580eb46a90c2b997e6" id="wp-i18n-js"></script> <script type="text/javascript" id="wp-i18n-js-after"> /* <![CDATA[ */ wp.i18n.setLocaleData( { 'text direction\u0004ltr': [ 'ltr' ] } ); 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