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ARIN registry — WHOIS, browse & statistics

A daily mirror of ARIN's public delegated registry (North America). Look up a resource, browse every object, or find a company's resources by name.

Single-resource lookup in ARIN’s delegated registry, enriched live from ARIN RDAP.
// what ARIN has delegated

ARIN registry at a glance

🌐
Assigned IPv4 addresses
1.65B
1,645,875,712
📦
IPv4 networks
76,665
delegated blocks
🧭
IPv6 networks
11,326
delegated blocks
🔗
Autonomous systems
34,014
ASNs
// browse the objects

Browse the ARIN registry

IPv4 blocks IPv6 blocks ASNs
ASCountryStatusAllocatedOrg handle
AS47005 reserved
AS47044 reserved
AS47057 reserved
AS47083 reserved
AS47089 reserved
AS53279 reserved
AS53286 reserved
AS53325 reserved
AS53326 reserved
AS53337 reserved
AS53351 reserved
AS53358 reserved
AS53362 reserved
AS53367 reserved
AS53419 reserved
AS53440 reserved
AS53456 reserved
AS53461 reserved
AS53466 reserved
AS53534 reserved
AS53573 reserved
AS53584 reserved
AS53630 reserved
AS53657 reserved
AS53685 reserved
AS53694 reserved
AS53708 reserved
AS53715 reserved
AS53731 reserved
AS53737 reserved
AS53771 reserved
AS53803 reserved
AS53810 reserved
AS53835 reserved
AS53881 reserved
AS53905 reserved
AS53923 reserved
AS53929 reserved
AS53947 reserved
AS53969 reserved
AS53996 reserved
AS53998 reserved
AS54051 reserved
AS54077 reserved
AS54090 reserved
AS54108 reserved
AS54161 reserved
AS54202 reserved
AS54212 reserved
AS54215 reserved
AS54231 reserved
AS54237 reserved
AS54242 reserved
AS54278 reserved
AS54315 reserved
AS54320 reserved
AS54322 reserved
AS54339 reserved
AS54433 reserved
AS54465 reserved
AS54503 reserved
AS54660 reserved
AS54694 reserved
AS54739 reserved
AS54745 reserved
AS54753 reserved
AS54757 reserved
AS54779 reserved
AS54909 reserved
AS54927 reserved
AS54942 reserved
AS55015 reserved
AS55055 reserved
AS55069 reserved
AS55072 reserved
AS55107 reserved
AS55144 reserved
AS55203 reserved
AS55225 reserved
AS58579 reserved
AS62506 reserved
AS62569 reserved
AS62621 reserved
AS62641 reserved
AS62660 reserved
AS62693 reserved
AS62748 reserved
AS62770 reserved
AS62801 reserved
AS62820 reserved
AS62847 reserved
AS62940 reserved
AS62946 reserved
AS62964 reserved
AS62986 reserved
AS63002 reserved
AS63090 reserved
AS63170 reserved
AS63177 reserved
AS63247 reserved
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