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
1,645,646,592
📦
IPv4 networks
76,735
delegated blocks
🧭
IPv6 networks
11,370
delegated blocks
🔗
Autonomous systems
34,059
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 216.162.80.0 – 216.162.95.255 | 4,096 |  US |
allocated | 2002-04-01 | 81f712a1eae7… |
| 66.252.0.0 – 66.252.31.255 | 8,192 | US |
allocated | 2002-03-28 | edb1773715cb… |
| 66.254.64.0 – 66.254.95.255 | 8,192 | US |
allocated | 2002-03-28 | dd3edde98ed2… |
| 66.255.128.0 – 66.255.191.255 | 16,384 | US |
allocated | 2002-03-28 | 6c065d5b54b8… |
| 207.188.96.0 – 207.188.127.255 | 8,192 | US |
allocated | 2002-03-27 | 6c065d5b54b8… |
| 209.237.224.0 – 209.237.255.255 | 8,192 | US |
allocated | 2002-03-27 | 1704bd1fb049… |
| 216.9.48.0 – 216.9.63.255 | 4,096 |  CA |
allocated | 2002-03-27 | 40cd94fa211e… |
| 66.254.0.0 – 66.254.31.255 | 8,192 | US |
allocated | 2002-03-26 | eec7dd7f899d… |
| 66.247.0.0 – 66.247.255.255 | 65,536 | US |
allocated | 2002-03-20 | 37fe01d6d027… |
| 66.250.0.0 – 66.250.255.255 | 65,536 | US |
allocated | 2002-03-20 | 37fe01d6d027… |
| 216.129.224.0 – 216.129.255.255 | 8,192 | US |
allocated | 2002-03-20 | 31cabede332a… |
| 66.248.0.0 – 66.248.127.255 | 32,768 | US |
allocated | 2002-03-19 | 6c065d5b54b8… |
| 64.5.160.0 – 64.5.191.255 | 8,192 | US |
allocated | 2002-03-18 | e586513b4435… |
| 66.7.96.0 – 66.7.111.255 | 4,096 | US |
allocated | 2002-03-18 | 68c49fc1539e… |
| 216.97.160.0 – 216.97.191.255 | 8,192 | US |
allocated | 2002-03-18 | 6c065d5b54b8… |
| 68.20.0.0 – 68.23.255.255 | 262,144 | US |
allocated | 2002-03-15 | 81e05477cc28… |
| 216.184.96.0 – 216.184.127.255 | 8,192 | US |
allocated | 2002-03-15 | 4616964edeb8… |
| 66.244.192.0 – 66.244.255.255 | 16,384 | CA |
allocated | 2002-03-14 | f6378853cc62… |
| 68.112.0.0 – 68.119.255.255 | 524,288 | US |
allocated | 2002-03-14 | 2ae6f8bcdd0f… |
| 207.189.96.0 – 207.189.127.255 | 8,192 | US |
allocated | 2002-03-14 | 4b179ab78b2a… |
| 216.197.96.0 – 216.197.127.255 | 8,192 | US |
allocated | 2002-03-13 | 04f97ffab0f6… |
| 64.79.32.0 – 64.79.47.255 | 4,096 | US |
allocated | 2002-03-12 | 3255a193db9a… |
| 66.244.0.0 – 66.244.63.255 | 16,384 | US |
allocated | 2002-03-12 | da2b5de398da… |
| 66.244.64.0 – 66.244.127.255 | 16,384 | US |
allocated | 2002-03-12 | 8b8f3fdb579c… |
| 209.197.32.0 – 209.197.63.255 | 8,192 | US |
allocated | 2002-03-12 | 6f1ca564de76… |
| 216.230.48.0 – 216.230.63.255 | 4,096 | US |
allocated | 2002-03-12 | 954b8bb3ee44… |
| 66.240.128.0 – 66.240.191.255 | 16,384 | CA |
allocated | 2002-03-08 | d9f6ef195bfa… |
| 66.246.0.0 – 66.246.255.255 | 65,536 | US |
allocated | 2002-03-08 | 0e660f095dee… |
| 66.241.128.0 – 66.241.143.255 | 4,096 | CA |
allocated | 2002-03-06 | a2e1bb6f40a4… |
| 66.241.192.0 – 66.241.255.255 | 16,384 | US |
allocated | 2002-03-06 | f9107f6aa386… |
| 66.242.160.0 – 66.242.175.255 | 4,096 | US |
allocated | 2002-03-06 | e3c57188b562… |
| 66.242.192.0 – 66.242.223.255 | 8,192 | US |
allocated | 2002-03-06 | ed1d3bf8b28c… |
| 66.242.224.0 – 66.242.255.255 | 8,192 | US |
allocated | 2002-03-06 | cdb7d42057bd… |
| 64.69.48.0 – 64.69.63.255 | 4,096 | US |
allocated | 2002-03-05 | a067dd2d4195… |
| 66.242.128.0 – 66.242.159.255 | 8,192 | US |
allocated | 2002-03-05 | ca4703be67b3… |
| 207.126.224.0 – 207.126.239.255 | 4,096 | US |
allocated | 2002-03-05 | c2dfb9e7c865… |
| 66.234.224.0 – 66.234.255.255 | 8,192 | US |
allocated | 2002-03-04 | a7f7463af3d3… |
| 66.242.32.0 – 66.242.47.255 | 4,096 | US |
allocated | 2002-03-04 | ac4b60bea73b… |
| 66.242.64.0 – 66.242.95.255 | 8,192 | US |
allocated | 2002-03-04 | 021385bf34d9… |
| 66.243.0.0 – 66.243.127.255 | 32,768 | US |
allocated | 2002-03-04 | e5e3b9c13678… |
| 66.243.128.0 – 66.243.191.255 | 16,384 | US |
allocated | 2002-03-04 | e5e3b9c13678… |
| 206.223.119.0 – 206.223.119.255 | 256 | US |
allocated | 2002-03-04 | fca460f9d966… |
| 66.234.192.0 – 66.234.223.255 | 8,192 | US |
allocated | 2002-03-01 | 1a922969fbba… |
| 68.16.0.0 – 68.17.255.255 | 131,072 | US |
allocated | 2002-02-27 | 81e05477cc28… |
| 64.56.208.0 – 64.56.208.255 | 256 | US |
allocated | 2002-02-26 | 21680e70669f… |
| 66.234.96.0 – 66.234.111.255 | 4,096 | US |
allocated | 2002-02-26 | 6a30efee1537… |
| 66.241.0.0 – 66.241.31.255 | 8,192 | US |
allocated | 2002-02-25 | a59873663842… |
| 66.241.64.0 – 66.241.95.255 | 8,192 | US |
allocated | 2002-02-25 | aa067cde7bfc… |
| 64.6.16.0 – 64.6.31.255 | 4,096 | US |
allocated | 2002-02-22 | f9dcea0c98ea… |
| 66.230.192.0 – 66.230.223.255 | 8,192 | US |
allocated | 2002-02-22 | a746174892d9… |
| 66.230.224.0 – 66.230.239.255 | 4,096 | US |
allocated | 2002-02-22 | a746174892d9… |
| 64.39.112.0 – 64.39.127.255 | 4,096 | US |
allocated | 2002-02-21 | db5877b31b4e… |
| 66.235.0.0 – 66.235.63.255 | 16,384 | US |
allocated | 2002-02-21 | 1a922969fbba… |
| 66.240.0.0 – 66.240.63.255 | 16,384 | US |
allocated | 2002-02-21 | 3a7b40ab58f6… |
| 66.234.0.0 – 66.234.0.255 | 256 | CA |
allocated | 2002-02-20 | 3c781914ab27… |
| 66.234.8.0 – 66.234.8.255 | 256 | CA |
allocated | 2002-02-20 | 3c781914ab27… |
| 66.234.10.0 – 66.234.11.255 | 512 | CA |
allocated | 2002-02-20 | 3c781914ab27… |
| 66.234.12.0 – 66.234.13.255 | 512 | CA |
allocated | 2002-02-20 | 3c781914ab27… |
| 66.234.14.0 – 66.234.14.255 | 256 | CA |
allocated | 2002-02-20 | 3c781914ab27… |
| 66.236.0.0 – 66.239.255.255 | 262,144 | US |
allocated | 2002-02-20 | e220ed812a4c… |
| 66.231.224.0 – 66.231.255.255 | 8,192 | US |
allocated | 2002-02-19 | b9a1c5613846… |
| 66.232.128.0 – 66.232.159.255 | 8,192 | US |
allocated | 2002-02-19 | f9107f6aa386… |
| 64.29.188.0 – 64.29.191.255 | 1,024 | US |
allocated | 2002-02-15 | b351e26e73d8… |
| 66.230.128.0 – 66.230.191.255 | 16,384 | US |
allocated | 2002-02-15 | 27465e27d21f… |
| 66.231.192.0 – 66.231.223.255 | 8,192 | US |
allocated | 2002-02-15 | f57036a35d7c… |
| 66.232.22.0 – 66.232.23.255 | 512 | US |
allocated | 2002-02-15 | aa82c10df1d1… |
| 66.232.24.0 – 66.232.27.255 | 1,024 | US |
allocated | 2002-02-15 | aa82c10df1d1… |
| 66.232.56.0 – 66.232.59.255 | 1,024 | US |
allocated | 2002-02-15 | aa82c10df1d1… |
| 64.29.144.0 – 64.29.159.255 | 4,096 | CA |
allocated | 2002-02-14 | 9533b2ecb615… |
| 66.230.64.0 – 66.230.79.255 | 4,096 | US |
allocated | 2002-02-14 | 1cb21afb6f24… |
| 66.231.160.0 – 66.231.175.255 | 4,096 |  PR |
allocated | 2002-02-14 | d89f312e331f… |
| 65.240.0.0 – 65.247.255.255 | 524,288 | US |
allocated | 2002-02-13 | e220ed812a4c… |
| 65.248.0.0 – 65.251.255.255 | 262,144 | US |
allocated | 2002-02-13 | e220ed812a4c… |
| 65.252.0.0 – 65.253.255.255 | 131,072 | US |
allocated | 2002-02-13 | e220ed812a4c… |
| 66.231.32.0 – 66.231.63.255 | 8,192 | US |
allocated | 2002-02-12 | 3f7ff4daa999… |
| 66.231.96.0 – 66.231.127.255 | 8,192 | US |
allocated | 2002-02-12 | cfa0dd745574… |
| 66.231.0.0 – 66.231.31.255 | 8,192 | US |
allocated | 2002-02-11 | 81d06921381e… |
| 66.226.192.0 – 66.226.255.255 | 16,384 | US |
allocated | 2002-02-08 | 614346bde8f8… |
| 66.228.192.0 – 66.228.223.255 | 8,192 | US |
allocated | 2002-02-08 | 0d72186b4f4f… |
| 66.228.224.0 – 66.228.255.255 | 8,192 | US |
allocated | 2002-02-08 | 6f963b327624… |
| 66.230.0.0 – 66.230.63.255 | 16,384 | US |
allocated | 2002-02-08 | b0faef22ffed… |
| 66.228.160.0 – 66.228.191.255 | 8,192 | US |
allocated | 2002-02-07 | c2dfb9e7c865… |
| 66.227.128.0 – 66.227.255.255 | 32,768 | US |
allocated | 2002-02-06 | 2ae6f8bcdd0f… |
| 66.228.96.0 – 66.228.111.255 | 4,096 | US |
allocated | 2002-02-06 | 08fe2bd61d93… |
| 66.228.128.0 – 66.228.159.255 | 8,192 | US |
allocated | 2002-02-06 | 83205c1a85a8… |
| 66.228.64.0 – 66.228.79.255 | 4,096 | US |
allocated | 2002-02-04 | 7744520fa5e7… |
| 68.96.0.0 – 68.111.255.255 | 1,048,576 | US |
allocated | 2002-02-04 | 4cad11d18482… |
| 64.72.224.0 – 64.72.224.255 | 256 | CA |
allocated | 2002-02-01 | 449259d9b4ce… |
| 64.72.225.0 – 64.72.225.255 | 256 | CA |
allocated | 2002-02-01 | ef873d206d9d… |
| 64.72.226.0 – 64.72.227.255 | 512 | CA |
allocated | 2002-02-01 | 449259d9b4ce… |
| 64.72.228.0 – 64.72.231.255 | 1,024 | CA |
allocated | 2002-02-01 | ef873d206d9d… |
| 64.72.232.0 – 64.72.239.255 | 2,048 | CA |
allocated | 2002-02-01 | ef873d206d9d… |
| 64.72.240.0 – 64.72.255.255 | 4,096 | CA |
allocated | 2002-02-01 | ef873d206d9d… |
| 66.229.0.0 – 66.229.255.255 | 65,536 | US |
allocated | 2002-02-01 | 3a7b40ab58f6… |
| 66.30.0.0 – 66.31.255.255 | 131,072 | US |
allocated | 2002-01-31 | 3a7b40ab58f6… |
| 66.226.64.0 – 66.226.71.255 | 2,048 | CA |
allocated | 2002-01-31 | 9533b2ecb615… |
| 66.226.80.0 – 66.226.95.255 | 4,096 | CA |
allocated | 2002-01-31 | 9533b2ecb615… |
| 66.227.0.0 – 66.227.127.255 | 32,768 | US |
allocated | 2002-01-31 | a7f7463af3d3… |
| 64.72.128.0 – 64.72.159.255 | 8,192 | US |
allocated | 2002-01-30 | 1cb21afb6f24… |
| 64.72.32.0 – 64.72.63.255 | 8,192 | US |
allocated | 2002-01-28 | e5d261f87d58… |