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A regional Internet
Internet
registry (RIR) is an organization that manages the allocation and registration of Internet number resources within a particular region of the world. Internet number resources include IP addresses and autonomous system (AS) numbers.

Map of Regional Internet
Internet
Registries

Regional Internet
Internet
Registries from 2002–2005

Regional Internet
Internet
Registries until 2002

The Regional Internet
Internet
Registry system evolved over time, eventually dividing the world into five RIRs:

African Network Information Center (AFRINIC)[1] for Africa American Registry for Internet Numbers
American Registry for Internet Numbers
(ARIN)[2] for the United States, Canada, several parts of the Caribbean
Caribbean
region, and Antarctica. Asia-Pacific Network Information Centre
Asia-Pacific Network Information Centre
(APNIC)[3] for Asia, Australia, New Zealand, and neighboring countries Latin America
Latin America
and Caribbean
Caribbean
Network Information Centre (LACNIC)[4] for Latin America
Latin America
and parts of the Caribbean
Caribbean
region Réseaux IP Européens Network Coordination Centre (RIPE NCC)[5] for Europe, Russia, the Middle East, and Central Asia

Contents

1 Internet
Internet
Assigned Numbers Authority 2 Number Resource Organization 3 Local Internet
Internet
registry 4 See also 5 References

Internet
Internet
Assigned Numbers Authority[edit] Regional Internet
Internet
Registries are components of the Internet
Internet
Number Registry System, which is described in IETF
IETF
RFC 7020.[6] The Internet Assigned Numbers Authority (IANA) delegates Internet resources to the RIRs who, in turn, follow their regional policies to delegate resources to their customers, which include Internet
Internet
service providers and end-user organizations. Collectively, the RIRs participate in the Number Resource Organization
Number Resource Organization
(NRO),[7] formed as a body to represent their collective interests, undertake joint activities, and coordinate their activities globally. The NRO has entered into an agreement with ICANN for the establishment of the Address Supporting Organisation (ASO),[8] which undertakes coordination of global IP addressing policies within the ICANN framework. Number Resource Organization[edit] The Number Resource Organization[7] (NRO) is an unincorporated organization uniting the five RIRs. It came into existence on October 24, 2003, when the four existing RIRs entered into a memorandum of understanding (MoU) in order to undertake joint activities, including joint technical projects, liaison activities and policy co-ordination. AFRINIC, which was officially created in April 2005, joined on April 25, 2005. The main aims of the NRO are to:

Protect the unallocated IP number resource pool, Promote and protect the bottom-up policy development process of the Internet, and Act as a focal point for Internet
Internet
community input into the RIR system.

Local Internet
Internet
registry[edit] A local Internet
Internet
registry (LIR) is an organization that has been allocated a block of IP addresses by a RIR, and that assigns most parts of this block to its own customers.[9] Most LIRs are Internet service providers, enterprises, or academic institutions. Membership in a Regional Internet
Internet
registry is required to become an LIR. See also[edit]

Country code top-level domain Geolocation software Internet
Internet
governance National Internet
Internet
registry

References[edit]

^ African Network Information Centre ^ American Registry for Internet
Internet
Numbers ^ Asia-Pacific Network Information Centre ^ Latin America
Latin America
and Caribbean
Caribbean
Network Information Centre ^ RIPE Network Coordination Centre ^ R. Housley, J. Curran, G. Huston, D. Conrad (August 2013). The Internet
Internet
Numbers Registry System. IETF. doi:10.17487/RFC7020. RFC 7020. https://tools.ietf.org/html/rfc7020.  ^ a b Number Resource Organization ^ The Address Supporting Organization ^ "ARIN Number Resource Policy Manual: Local Internet
Internet
Registry (LIR)". 

v t e

Regional Internet
Internet
Registries

ARIN (Canada, United States, some Caribbean
Caribbean
nations) RIPE NCC
RIPE NCC
(Europe, Russia, Middle East, Central Asia) APNIC (Asia-Pacific region) LACNIC (Latin America, some Caribbean
Caribbean
nations

.