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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
AS401682 US assigned 2025-04-17 5c811aaf62f2…
AS401683 CA assigned 2025-04-17 305a36d760d7…
AS401684 US assigned 2025-04-17 e3597c5a4ae0…
AS401685 US assigned 2025-04-17 8f08d0cd45ee…
AS401686 US assigned 2025-04-17 9ce656a7e4b9…
AS401687 US assigned 2025-04-17 34443405cdc9…
AS401688 US assigned 2025-04-17 d4ce2a2ffc16…
AS401689 US assigned 2025-04-17 a213bd390c86…
AS32358 US assigned 2025-04-16 9ad49a1d884e…
AS401676 US assigned 2025-04-16 f1393dadfccb…
AS401677 US assigned 2025-04-16 740399db74b3…
AS401678 US assigned 2025-04-16 7440b9e2753c…
AS401679 CA assigned 2025-04-16 a9f9bdd57b8a…
AS401669 US assigned 2025-04-15 caa1cd75e7c5…
AS401670 US assigned 2025-04-15 c3109f84d514…
AS401671 US assigned 2025-04-15 087cb05b6c6f…
AS401672 US assigned 2025-04-15 da6c13719285…
AS401673 US assigned 2025-04-15 d0ea073de2c2…
AS401674 US assigned 2025-04-15 143a5672e98a…
AS401675 US assigned 2025-04-15 7e6b412bda38…
AS401658 CA assigned 2025-04-14 836ca6fc4cf4…
AS401659 US assigned 2025-04-14 ea669931a641…
AS401660 US assigned 2025-04-14 0e99478ff230…
AS401661 US assigned 2025-04-14 fb71c5bec503…
AS401662 US assigned 2025-04-14 4866f5ebe725…
AS401663 US assigned 2025-04-14 e67592787739…
AS401664 CA assigned 2025-04-14 ea034da4c90d…
AS401665 CA assigned 2025-04-14 a2077656acae…
AS401666 US assigned 2025-04-14 7c5432c9611c…
AS401667 US assigned 2025-04-14 42a4b7b26497…
AS401668 US assigned 2025-04-14 63d79e1c3273…
AS401652 US assigned 2025-04-11 b313e9ae0c90…
AS401653 US assigned 2025-04-11 69b5e0380ac5…
AS401654 US assigned 2025-04-11 5070f22ef610…
AS401655 JP assigned 2025-04-11 487a4d04f3a8…
AS401656 US assigned 2025-04-11 771246ab7881…
AS401657 US assigned 2025-04-11 71cf13771739…
AS29761 US assigned 2025-04-10 544c50539fcd…
AS401646 US assigned 2025-04-10 ae01eebe38e6…
AS401647 US assigned 2025-04-10 b5e219329882…
AS401648 US assigned 2025-04-10 a8aeb5794df1…
AS401649 US assigned 2025-04-10 e7aff666db72…
AS401650 US assigned 2025-04-10 89a48307e326…
AS401651 US assigned 2025-04-10 9a87fc7573ad…
AS401616 PA assigned 2025-04-09 4b523d8ff48f…
AS401640 US assigned 2025-04-09 c2fed9901a38…
AS401641 US assigned 2025-04-09 5257772e1fdf…
AS401642 US assigned 2025-04-09 3efa4e0e98c6…
AS401643 US assigned 2025-04-09 f07cf39cb7f7…
AS401644 US assigned 2025-04-09 e257c0a8695e…
AS401645 US assigned 2025-04-09 7f25048b089d…
AS400605 US assigned 2025-04-08 6807757b4af2…
AS400700 US assigned 2025-04-08 ff43c7e391dc…
AS400802 US assigned 2025-04-08 8c76c77a07ac…
AS401081 US assigned 2025-04-08 9bcfea19e0fc…
AS401442 US assigned 2025-04-08 289f3df2ac71…
AS401454 US assigned 2025-04-08 b61b890d878b…
AS401475 US assigned 2025-04-08 dd4785c9c147…
AS399613 US assigned 2025-04-07 64897ea7ca9e…
AS399928 US assigned 2025-04-07 f552c52bfd4b…
AS399950 US assigned 2025-04-07 31e961fffee4…
AS400242 US assigned 2025-04-07 e26447750f54…
AS400345 US assigned 2025-04-07 5a8f43fbc408…
AS400388 US assigned 2025-04-07 b0dfca43049f…
AS399272 US assigned 2025-04-04 d587d7447fac…
AS399284 US assigned 2025-04-04 4d0a2de63964…
AS399304 CA assigned 2025-04-04 60b995c77ab1…
AS399375 US assigned 2025-04-04 ff3b64355b12…
AS399383 US assigned 2025-04-04 266dc69dc659…
AS399526 US assigned 2025-04-04 9e6a17e25fa8…
AS396050 US assigned 2025-04-03 5d47dd5f04c6…
AS399191 US assigned 2025-04-03 7f4e44cde27f…
AS395712 US assigned 2025-04-02 26466b36a1dd…
AS395878 US assigned 2025-04-02 bb642fc89037…
AS396037 US assigned 2025-04-02 d23c986103e8…
AS394871 US assigned 2025-04-01 3c4962eb0ed7…
AS394905 US assigned 2025-04-01 77b4e4090bfa…
AS395282 US assigned 2025-04-01 da87790d83c0…
AS395613 US assigned 2025-04-01 05c75914cd92…
AS3819 US assigned 2025-03-31 a3e2b93f5c1e…
AS38439 US assigned 2025-03-31 eddc82b0db0d…
AS64203 US assigned 2025-03-31 be688ae719c0…
AS393373 US assigned 2025-03-31 a45eb47a1995…
AS394076 US assigned 2025-03-31 0dbe415474f5…
AS30274 US assigned 2025-03-28 85e600bcc611…
AS53436 US assigned 2025-03-28 9b40a13ef799…
AS54416 US assigned 2025-03-28 488d2a5b6891…
AS54419 US assigned 2025-03-28 f01f64b3e568…
AS54953 US assigned 2025-03-28 0b5919042338…
AS55057 US assigned 2025-03-28 9f82822d7c7a…
AS55068 PR assigned 2025-03-28 624c811f937b…
AS55168 US assigned 2025-03-28 25d69ee207db…
AS40672 US assigned 2025-03-27 cbce41a0cade…
AS40838 CA assigned 2025-03-27 9b9ba634dda4…
AS40879 US assigned 2025-03-27 1f4cb87b35e9…
AS40925 CA assigned 2025-03-27 2a2ffa8f1322…
AS47098 US assigned 2025-03-27 3ce70f19de61…
AS53873 US assigned 2025-03-27 4ed61c6aa75f…
AS40419 US assigned 2025-03-26 63c5fe58fe75…
AS40493 US assigned 2025-03-26 60a35e827774…
1,701–1,800 of 32,715 « first‹ prev 1617181920 next ›last » of 328