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For network abuse such as spam or , people mistakenly interpret references to apnic.net when doing a whois search to indicate that APNIC is the source of the abuse. Instead, these references to APNIC simply mean that the address space in question was delegated by APNIC to an organization within the Asia Pacific region.
This means that 256 /8 address blocks fit into the entire IPv4 space. As IPv4 address exhaustion has advanced to its final stages, some organizations, such as Stanford University, formerly using 36.0.0.0 / 8, have returned their allocated blocks (in this case to APNIC) to assist in the delay of the exhaustion date.
NIRs operate primarily in the Asia Pacific region, under the authority of APNIC, the regional Internet registry for that region. The following NIRs are currently operating in the APNIC region: IDNIC-APJII (Indonesia Network Information Centre-Asosiasi Penyelenggara Jasa Internet Indonesia)
The various legacy address blocks with administration historically split among the RIRs were distributed to the RIRs in February 2011. [28] APNIC was the first regional Internet registry to run out of freely allocated IPv4 addresses, on 15 April 2011. This date marked the point where not everyone who needed an IPv4 address could be allocated one.
Lookups of IP address allocations are often limited to the larger Classless Inter-Domain Routing (CIDR) blocks (e.g., /24, /22, /16), because usually only the regional Internet registries (RIRs) and domain registrars run RWhois or WHOIS servers, although RWhois is intended to be run by even smaller local Internet registries, to provide more ...
The American Registry for Internet Numbers (ARIN) is the regional Internet registry for the United States, Canada, and many Caribbean and North Atlantic islands. ARIN manages the distribution of Internet number resources, including IPv4 and IPv6 address space and AS numbers.
Some commercial databases have augmented geolocation software with demographic data to enable demographic-type targeting using IP address data. The primary source for IP address data is the regional Internet registries which allocates and distributes IP addresses amongst organizations located in their respective service regions:
Announcements of new assignments are often published on network operators' mailing lists (such as NANOG) to ensure that bogon filtering can be removed for addresses that have become legitimate. For example, addresses in 49.0.0.0 / 8 were not allocated prior to August 2010, but are now used by APNIC. [7]