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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
1.64B
1,644,545,792
📦
IPv4 networks
77,307
delegated blocks
🧭
IPv6 networks
11,571
delegated blocks
🔗
Autonomous systems
34,285
ASNs
// browse the objects

Browse the ARIN registry

IPv4 blocks IPv6 blocks ASNs
PrefixCountryStatusAllocatedOrg handle
2602:81f:9000::/40 US allocated 2026-10-28 44ec8d240fa3…
2602:81f:a000::/44 US allocated 2026-10-28 017d0d4ea1fb…
2602:81f:b000::/44 US allocated 2026-10-28 068119c6fc19…
2602:f285::/40 US allocated 2026-10-28 0e6e8bf502f9…
2602:f286::/40 US allocated 2026-10-28 d1144feb12d3…
2602:f287::/40 US allocated 2026-10-28 e6840c1c85ba…
2602:f288::/40 US allocated 2026-10-28 ead1ea7ffe30…
2604:bf40::/32 US allocated 2026-10-28 cc196a21c04e…
2602:81f:8000::/44 US allocated 2026-10-27 f9159654c788…
2602:f289::/36 US allocated 2026-10-27 ff1f8a8f5e8e…
2604:bd80::/32 US allocated 2026-10-27 3d170639f885…
2620:b3:d000::/48 US allocated 2026-10-27 b6c912b33a9c…
2620:c5:d000::/48 US allocated 2026-10-27 74a91bc3a082…
2602:f28a::/40 CA allocated 2026-10-26 caa18d425bf0…
2602:81f:7000::/44 US allocated 2026-10-23 cdb6799d8478…
2602:f28b::/40 US allocated 2026-10-23 e563aa7acaf0…
2602:f28c::/40 US allocated 2026-10-23 24b4b426e745…
2602:f28d::/36 US allocated 2026-10-23 39333bc9c5ec…
2602:f28e::/36 US allocated 2026-10-23 97fb8ea08c77…
2602:f28f::/40 US allocated 2026-10-23 84e0e4a7e7e9…
2602:f290::/40 US allocated 2026-10-22 776ca1ee871b…
2604:b380::/32 US allocated 2026-10-22 cbcd35f8078e…
2602:f291::/40 US allocated 2026-10-21 a1f0d10a18a5…
2604:acc0::/32 US allocated 2026-10-21 a511e0415c2e…
2604:af00::/32 CA allocated 2026-10-21 b9657672d138…
2602:81f:6000::/44 CA allocated 2026-10-20 90e38ef18202…
2602:f292::/40 US allocated 2026-10-20 fe74594c96e2…
2602:f293::/40 US allocated 2026-10-20 88291c1e8fd0…
2602:f294::/40 NL allocated 2026-10-20 277c3859eb81…
2602:f295::/40 US allocated 2026-10-20 8d4f50d8e8f1…
2602:f296::/40 TH allocated 2026-10-20 4a3df17946f7…
2602:f297::/40 US allocated 2026-10-20 cb343974fbac…
2602:f298::/40 US allocated 2026-10-20 53179d846088…
2604:aac0::/32 US allocated 2026-10-20 3c1f05563829…
2602:f299::/40 US allocated 2026-10-19 7aeafc21ce30…
2602:81f:5000::/44 US allocated 2026-10-16 0078016d175f…
2602:f29a::/40 CA allocated 2026-10-16 5353cfb48e30…
2602:f29b::/40 US allocated 2026-10-16 707704dee65e…
2602:f29c::/40 TH allocated 2026-10-16 71422eb04c6d…
2602:f29d::/40 JP allocated 2026-10-16 9abeae8144be…
2602:f29e::/40 IT allocated 2026-10-16 9df167d583a6…
2602:f29f::/40 TH allocated 2026-10-16 249ccdeb768d…
2602:f2a0::/40 US allocated 2026-10-16 384300841e03…
2602:f2a1::/40 US allocated 2026-10-16 724bb4868071…
2604:a380::/32 US allocated 2026-10-16 065c6fb96b85…
2602:f2a2::/40 US allocated 2026-10-15 5311418e82b6…
2602:f2a3::/36 US allocated 2026-10-14 fd781ee47904…
2602:f2a4::/36 US allocated 2026-10-14 5f46b41af8ca…
2602:f2a5::/36 US allocated 2026-10-14 08d1d0aa32dc…
2602:f2a6::/40 US allocated 2026-10-14 d4d01b894fa6…
2602:f2a7::/40 US allocated 2026-10-14 a67089bf8089…
2604:8b40::/32 US allocated 2026-10-14 745cc6cbfed6…
2620:9b:f000::/48 US allocated 2026-10-14 5be1bd058eea…
2602:81f:4000::/44 US allocated 2026-10-13 2497a33829de…
2602:f2a8::/40 CA allocated 2026-10-13 b68b5aaeaa42…
2602:f2a9::/40 US allocated 2026-10-13 a5cd304d49a5…
2602:f2aa::/36 US allocated 2026-10-13 c02691ecbff7…
2604:8680::/32 US allocated 2026-10-13 5945d652fdd2…
2604:8a80::/32 US allocated 2026-10-13 31d3cc96b902…
2602:f2ab::/40 US allocated 2026-10-09 255dbd2ebe1d…
2602:f2ac::/40 US allocated 2026-10-09 30e8f150bffc…
2602:f2ad::/36 US allocated 2026-10-09 e0cf16d5f74a…
2602:f2ae::/40 US allocated 2026-10-09 06184a08cac1…
2602:f2af::/40 US allocated 2026-10-09 893bab5c8a68…
2001:478::/32 US allocated 2026-10-08 9b0464c126b9…
2602:81f:2000::/44 US allocated 2026-10-08 f131d4101958…
2602:81f:3000::/40 US allocated 2026-10-08 901489662b55…
2602:f2b0::/40 US allocated 2026-10-08 20a546b6e9e3…
2602:f2b1::/40 US allocated 2026-10-08 f09239e68ea4…
2602:f2b2::/40 TH allocated 2026-10-08 d84d5e6af0a7…
2602:f2b3::/40 TH allocated 2026-10-08 8782b68a1849…
2602:f2b4::/40 US allocated 2026-10-08 857cb7a14e8b…
2602:f2b5::/40 US allocated 2026-10-08 2e6b308ab563…
2602:f2b6::/36 US allocated 2026-10-08 ad602d56d1fb…
2602:f2b7::/40 US allocated 2026-10-08 16181be38a8e…
2604:8080::/32 US allocated 2026-10-08 699f0842b443…
2602:81f:1000::/44 US allocated 2026-10-07 09f78c432f48…
2602:f2b8::/36 US allocated 2026-10-07 faabf549572b…
2602:f2b9::/40 TH allocated 2026-10-07 8e7ad2686a43…
2620:99:b000::/48 US allocated 2026-10-07 5117cf29e7cd…
2602:f2ba::/40 US allocated 2026-10-06 326c25663664…
2602:f2bb::/40 US allocated 2026-10-06 390af976207f…
2602:f2bc::/40 SG allocated 2026-10-06 b0b6c5e8b19d…
2602:f2bd::/40 US allocated 2026-10-06 006575c60f55…
2602:f2be::/40 US allocated 2026-10-06 09e2117eab4c…
2620:8c:d000::/48 US allocated 2026-10-06 32e17e81ab9c…
2620:106:7000::/40 US allocated 2026-10-05 6bdfde5adc51…
2602:81e:f000::/44 US allocated 2026-10-02 16c895579094…
2602:81f::/44 US allocated 2026-10-02 6a760cc52bdf…
2602:f2bf::/40 SG allocated 2026-10-02 73fe9d68f610…
2602:f2c0::/40 SG allocated 2026-10-02 b1b0da38144a…
2602:f2c1::/40 US allocated 2026-10-02 47342f27ceae…
2602:f2c2::/36 US allocated 2026-10-02 5defefa96a7b…
2602:f2c3::/40 TH allocated 2026-10-02 17fe22a4385b…
2602:f2c4::/36 US allocated 2026-10-02 ed984ebf0bb9…
2602:f2c5::/40 US allocated 2026-10-02 4e59c4369608…
2620:89:5000::/48 US allocated 2026-10-02 5f63e7eb88ec…
2600:2e00::/24 US allocated 2026-10-01 9105e2787f6f…
2602:f2c6::/36 US allocated 2026-10-01 ad3cdc1f171a…
2602:f2c7::/40 US allocated 2026-10-01 a3c5a50806a0…
1–100 of 90,067 123 next ›last » of 901