NRO
The Number Resource Organization (NRO) was established in 2003 as a coordinating body for the world’s Regional Internet Registries (RIRs). The RIRs manage the distribution of Internet number resources (IP address space and Autonomous System Numbers) within their respective regions.
The NRO is a coordination point for joint RIR activities and projects, including Resource Certification (RPKI), global RIR statistics reports, global Internet governance activities and global policy coordination.
NRO 2020 Continuing Cooperation Brochure available here.
AFRINIC
The African Network Information Centre (AFRINIC) is the Regional Internet Registry (RIR) for Africa and the Indian Ocean region. Established in 2005, AFRINIC is responsible for the distribution and management of Internet number resources such as Internet Protocol (IP) addresses and Autonomous System Numbers (ASNs). AFRINIC serves 55 economies throughout Africa and the Indian Ocean. Read more about AFRINIC here: https://www.afrinic.net/.
APNIC
APNIC (Asia Pacific Network Information Centre) is an open, member-based, not-for-profit organization, whose primary role is to distribute and manage Internet number resources in the Asia Pacific region's 56 economies. APNIC helps build essential technical skills across the region, supports Internet infrastructure development, produces insightful research, and is an active participant in the multistakeholder model of Internet cooperation and governance. APNIC performs these activities as part of its commitment to a global, open, stable and secure Internet. www.apnic.net
ARIN
Established in December 1997, the American Registry for Internet Numbers (ARIN) is a nonprofit, member-based organization that supports the operation and growth of the Internet. ARIN accomplishes this by carrying out its core service, which is the management and distribution of Internet number resources such as Internet Protocol (IP) addresses and Autonomous System Numbers (ASNs). ARIN manages these resources within its service region, which is comprised of Canada, the United States, and many Caribbean and North Atlantic islands. ARIN also coordinates policy development by the community and advances the Internet through informational outreach. www.arin.net
LACNIC
The Internet Addresses Registry for Latin America and the Caribbean (LACNIC) is an international, non-governmental organization established in Uruguay in 2002. It is responsible for assigning and managing Internet number resources (IPv4, IPv6), Autonomous System Numbers, and Reverse Resolution for the region. LACNIC provides its services in 33 territories in Latin America and the Caribbean. Access the list here: https://www.lacnic.net/1004/2/lacnic/about-lacnic
RIPE NCC
Founded in 1992, the RIPE NCC is a not-for-profit membership association that supports over 20,000 members across Europe, the Middle East and parts of Central Asia. The RIPE NCC also provides administrative and secretariat support to the RIPE community, which is a forum open to anyone interested in wide area IP networks. As a Regional Internet Registry, the RIPE NCC allocates IP addresses and AS Numbers to organisations within its service region and registers them in a public database. www.ripe.net.