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ARIN manages the distribution of Internet number resources, including IPv4 and IPv6 address space and AS numbers. ARIN opened for business on December 22, 1997 [1] after incorporating on April 18, 1997. [2] ARIN is a nonprofit corporation with headquarters in Chantilly, Virginia, United States. [3] [4]
Some large / 8 blocks of IPv4 addresses, the former Class A network blocks, are assigned in whole to single organizations or related groups of organizations, either by the Internet Corporation for Assigned Names and Numbers (ICANN), through the Internet Assigned Numbers Authority (IANA), or a regional Internet registry.
Those registries started empty and will be gradually populated as registrants of domains and address spaces provide RDAP server information to IANA. [4] [5] For number registries, ARIN set up a public RDAP service which also features a bootstrap URL, similar to what they do for WHOIS. [6] For name registries, ICANN requires RDAP compliance ...
The American Registry for Internet Numbers (ARIN) is based in Chantilly, Virginia and serves Antarctica, Canada, the United States, and some Caribbean countries and territories. [3] The Asia Pacific Network Information Centre (APNIC) is based in Brisbane, Australia and serves East, South and Southeast Asia and Oceania. [4]
The Internet Assigned Numbers Authority (IANA) is a standards organization that oversees global IP address allocation, autonomous system number allocation, root zone management in the Domain Name System (DNS), media types, and other Internet Protocol–related symbols and Internet numbers.
All the RIRs have set aside a small pool of IP addresses for the transition to IPv6 (for example carrier-grade NAT), from which each RIR can typically get at most 1024 in total. ARIN [37] and LACNIC [38] reserves the last /10 for IPv6 transition. APNIC, and RIPE NCC have reserved the last obtained /8 block for IPv6 transition.
IPv6 addresses are assigned to organizations in much larger blocks as compared to IPv4 address assignments—the recommended allocation is a / 48 block which contains 2 80 addresses, being 2 48 or about 2.8 × 10 14 times larger than the entire IPv4 address space of 2 32 addresses and about 7.2 × 10 16 times larger than the / 8 blocks of IPv4 ...
A RIR oversees the allocation and registration of Internet number resources (IPv4 addresses, IPv6 addresses and autonomous system numbers) in a specific region. The RIPE NCC supports the technical and administrative coordination of the infrastructure of the Internet.