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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
AS19023 US assigned 2000-11-09 276d1c64a28b…
AS19017 US assigned 2000-11-08 f98fd00a1324…
AS19018 US assigned 2000-11-08 a7f7463af3d3…
AS19019 US assigned 2000-11-08 6e048190eb9a…
AS8092 US assigned 2000-11-07 4f110d9bcc28…
AS19000 US assigned 2000-11-07 2b743e1478fc…
AS19002 US assigned 2000-11-07 c2a16aebbb5c…
AS19003 US assigned 2000-11-07 a9a74c6651c6…
AS19006 US assigned 2000-11-07 e40a1c3369de…
AS19008 US assigned 2000-11-07 41b86f858032…
AS19011 US assigned 2000-11-07 209fb9ddbb9c…
AS19016 CA assigned 2000-11-07 efef4c621276…
AS18986 CA assigned 2000-11-06 cb6d23ee13c9…
AS18988 CA assigned 2000-11-06 b9945c7e414f…
AS18990 US assigned 2000-11-06 614346bde8f8…
AS18972 US assigned 2000-11-03 38cc2ffa4121…
AS18973 US assigned 2000-11-03 5f072065ec90…
AS18980 US assigned 2000-11-03 c15a1a43f0d3…
AS18982 US assigned 2000-11-03 73857dd3d742…
AS18961 US assigned 2000-11-02 da0e939f1107…
AS18962 US assigned 2000-11-02 3834e59ca0ff…
AS18964 US assigned 2000-11-02 29e7925039db…
AS18968 CA assigned 2000-11-02 e00dc8358990…
AS18970 US assigned 2000-11-02 347c70c39c30…
AS18971 US assigned 2000-11-02 f74174412503…
AS18948 US assigned 2000-11-01 8a250f508b66…
AS18943 US assigned 2000-10-31 81dca8c445e5…
AS18945 US assigned 2000-10-31 4b179ab78b2a…
AS18946 US assigned 2000-10-31 aaba12e06546…
AS18924 US assigned 2000-10-30 399da38fd3d4…
AS18930 US assigned 2000-10-30 691a25f4fb6c…
AS18936 US assigned 2000-10-30 3aef1867c05a…
AS18938 US assigned 2000-10-30 5b17c83f35c1…
AS18939 US assigned 2000-10-30 7a43b8579dc2…
AS18942 US assigned 2000-10-30 a070a29f35de…
AS78 US assigned 2000-10-28 eee4911c1d68…
AS18920 US assigned 2000-10-27 ed8928d84d3c…
AS18916 US assigned 2000-10-26 ace55d4dc090…
AS18895 PR assigned 2000-10-24 46ac846b8731…
AS18900 US assigned 2000-10-24 0412de68f79a…
AS18882 US assigned 2000-10-23 06e6c6671a5b…
AS18884 US assigned 2000-10-23 0c437ee29efa…
AS18885 US assigned 2000-10-23 43dff98f7079…
AS18886 US assigned 2000-10-23 e4a25f8062d9…
AS18887 CA assigned 2000-10-23 81d84a66fa20…
AS18872 US assigned 2000-10-20 be614121e0db…
AS18874 US assigned 2000-10-20 e4cff83cc62b…
AS18876 US assigned 2000-10-20 b0eabe23f5c8…
AS18880 US assigned 2000-10-20 7680c296351d…
AS18866 US assigned 2000-10-19 5018a994966e…
AS18867 US assigned 2000-10-19 73140e517da1…
AS18848 US assigned 2000-10-18 4adc80de0dd5…
AS18856 US assigned 2000-10-18 d9f6aa3ab689…
AS18858 US assigned 2000-10-18 ed1108e0daac…
AS18859 US assigned 2000-10-18 ac4d1f023faf…
AS18861 US assigned 2000-10-18 7a73cca250d9…
AS18862 US assigned 2000-10-18 76361b53ecb7…
AS8190 US assigned 2000-10-17 a7f7463af3d3…
AS18839 US assigned 2000-10-17 d4a23bf6be72…
AS18842 US assigned 2000-10-17 08b3c18bdbfa…
AS18843 US assigned 2000-10-17 4cc81ce6002e…
AS18844 US assigned 2000-10-17 1458bed16e3f…
AS18816 US assigned 2000-10-16 cc7a1dd8f2a5…
AS18818 US assigned 2000-10-16 b8fedc590b14…
AS18819 US assigned 2000-10-16 bd060bbd3b4b…
AS18823 US assigned 2000-10-16 9f8dc0de5a55…
AS18824 US assigned 2000-10-16 0c170b57dd3c…
AS18831 US assigned 2000-10-16 cbbf7e419d00…
AS18832 US assigned 2000-10-16 66e68ecd93af…
AS18833 US assigned 2000-10-16 2a1a19e1bfc9…
AS18834 US assigned 2000-10-16 59cca8331e4b…
AS18835 US assigned 2000-10-16 2cdbb266be20…
AS18806 US assigned 2000-10-13 73857dd3d742…
AS18810 US assigned 2000-10-13 74bea4bd5171…
AS18802 US assigned 2000-10-12 53bc5501e639…
AS18803 US assigned 2000-10-12 49ad496a5450…
AS18787 US assigned 2000-10-11 aee0c5093c28…
AS18791 US assigned 2000-10-11 3cdb0f1ef1bb…
AS18794 US assigned 2000-10-11 f7f437bb9a49…
AS18795 US assigned 2000-10-11 86bb66a34be0…
AS18776 US assigned 2000-10-10 c436de313344…
AS18784 US assigned 2000-10-10 683598f431cf…
AS18763–AS18770 US assigned 2000-10-09 1babc6b53fe5…
AS18756 US assigned 2000-10-06 e5e3b9c13678…
AS18757 US assigned 2000-10-06 62069089c3b8…
AS18761 US assigned 2000-10-06 72353bde3d2a…
AS18743 US assigned 2000-10-05 fdbcab4884cf…
AS18749 US assigned 2000-10-05 bb9107573298…
AS18750 CA assigned 2000-10-05 86c69c140e87…
AS18755 US assigned 2000-10-05 f96917241084…
AS18713 US assigned 2000-10-03 31caea8da158…
AS18716 US assigned 2000-10-03 3d32246d93f9…
AS18718 US assigned 2000-10-03 91e59dfefd97…
AS18719 US assigned 2000-10-03 5f96f4b26b20…
AS18720 US assigned 2000-10-03 bdac70f9dbb5…
AS18722 US assigned 2000-10-03 5a8c749535eb…
AS18723 US assigned 2000-10-03 1af6f5e38c00…
AS18726 US assigned 2000-10-03 83c8ea319583…
AS18727 US assigned 2000-10-03 89111e38c012…
AS18728 US assigned 2000-10-03 33d55d66978d…
26,301–26,400 of 32,715 « first‹ prev 262263264265266 next ›last » of 328