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
1,644,584,448
📦
IPv4 networks
76,800
delegated blocks
🧭
IPv6 networks
11,472
delegated blocks
🔗
Autonomous systems
34,179
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 66.207.76.0 – 66.207.79.255 | 1,024 |  US |
allocated | 2001-12-13 | 6f1ca564de76… |
| 66.207.81.0 – 66.207.81.255 | 256 | US |
allocated | 2001-12-13 | 6f1ca564de76… |
| 66.207.83.0 – 66.207.83.255 | 256 | US |
allocated | 2001-12-13 | 6f1ca564de76… |
| 66.207.86.0 – 66.207.86.255 | 256 | US |
allocated | 2001-12-13 | 6f1ca564de76… |
| 66.207.88.0 – 66.207.89.255 | 512 | US |
allocated | 2001-12-13 | 6f1ca564de76… |
| 66.207.95.0 – 66.207.95.255 | 256 | US |
allocated | 2001-12-13 | 6f1ca564de76… |
| 66.206.160.0 – 66.206.175.255 | 4,096 | US |
allocated | 2001-12-11 | f27df807139f… |
| 66.205.128.0 – 66.205.159.255 | 8,192 | US |
allocated | 2001-12-07 | 424bfcacb580… |
| 66.206.64.0 – 66.206.79.255 | 4,096 | US |
allocated | 2001-12-07 | 403ce57035b2… |
| 66.206.96.0 – 66.206.111.255 | 4,096 | US |
allocated | 2001-12-07 | b79d4d7cf0b9… |
| 66.206.128.0 – 66.206.159.255 | 8,192 | US |
allocated | 2001-12-07 | 3626ecf79a0d… |
| 66.202.128.0 – 66.202.191.255 | 16,384 | US |
allocated | 2001-12-04 | 0b05899d0922… |
| 66.203.116.0 – 66.203.119.255 | 1,024 | US |
allocated | 2001-12-04 | 3ac912828e0d… |
| 66.203.120.0 – 66.203.123.255 | 1,024 | US |
allocated | 2001-12-04 | 3ac912828e0d… |
| 66.205.0.0 – 66.205.63.255 | 16,384 | US |
allocated | 2001-12-04 | 9f5cb4d23569… |
| 66.203.224.0 – 66.203.239.255 | 4,096 | US |
allocated | 2001-12-03 | d497a9a99490… |
| 66.201.192.0 – 66.201.255.255 | 16,384 |  CA |
allocated | 2001-11-30 | 7de51f8320f6… |
| 66.203.160.0 – 66.203.191.255 | 8,192 | CA |
allocated | 2001-11-29 | e23cabb7a6c5… |
| 66.203.192.0 – 66.203.223.255 | 8,192 | CA |
allocated | 2001-11-29 | 0e702695cc8d… |
| 68.32.0.0 – 68.63.255.255 | 2,097,152 | US |
allocated | 2001-11-29 | 3a7b40ab58f6… |
| 66.201.128.0 – 66.201.159.255 | 8,192 | US |
allocated | 2001-11-28 | 302960e84b60… |
| 66.203.128.0 – 66.203.143.255 | 4,096 | US |
allocated | 2001-11-28 | 2ea584a374f5… |
| 66.203.64.0 – 66.203.95.255 | 8,192 | US |
allocated | 2001-11-27 | 6e048190eb9a… |
| 66.204.0.0 – 66.204.255.255 | 65,536 | US |
allocated | 2001-11-27 | 887ce4ec84e6… |
| 67.40.0.0 – 67.41.255.255 | 131,072 | US |
allocated | 2001-11-27 | cdb7d42057bd… |
| 67.42.0.0 – 67.42.255.255 | 65,536 | US |
allocated | 2001-11-27 | cdb7d42057bd… |
| 66.203.0.0 – 66.203.15.255 | 4,096 | US |
allocated | 2001-11-26 | 9f77ba07766e… |
| 66.202.0.0 – 66.202.127.255 | 32,768 | US |
allocated | 2001-11-21 | 6c065d5b54b8… |
| 67.12.0.0 – 67.13.255.255 | 131,072 | US |
allocated | 2001-11-20 | cdb7d42057bd… |
| 67.14.0.0 – 67.14.127.255 | 32,768 | US |
allocated | 2001-11-20 | cdb7d42057bd… |
| 67.14.128.0 – 67.14.159.255 | 8,192 | US |
allocated | 2001-11-20 | cdb7d42057bd… |
| 66.199.192.0 – 66.199.223.255 | 8,192 | US |
allocated | 2001-11-16 | 5945d652fdd2… |
| 66.199.128.0 – 66.199.143.255 | 4,096 | CA |
allocated | 2001-11-15 | 3c781914ab27… |
| 66.199.144.0 – 66.199.151.255 | 2,048 | CA |
allocated | 2001-11-15 | 3c781914ab27… |
| 66.199.152.0 – 66.199.155.255 | 1,024 | CA |
allocated | 2001-11-15 | 3c781914ab27… |
| 66.199.160.0 – 66.199.175.255 | 4,096 | CA |
allocated | 2001-11-15 | 3c781914ab27… |
| 66.199.184.0 – 66.199.191.255 | 2,048 | CA |
allocated | 2001-11-15 | 3c781914ab27… |
| 66.187.128.0 – 66.187.159.255 | 8,192 | US |
allocated | 2001-11-14 | 4044d12f1093… |
| 66.199.64.0 – 66.199.127.255 | 16,384 | US |
allocated | 2001-11-14 | 4f110d9bcc28… |
| 66.200.0.0 – 66.200.255.255 | 65,536 | US |
allocated | 2001-11-14 | a7f7463af3d3… |
| 66.187.32.0 – 66.187.47.255 | 4,096 | US |
allocated | 2001-11-13 | ebcff024e387… |
| 66.187.224.0 – 66.187.239.255 | 4,096 | US |
allocated | 2001-11-13 | 8f06f3cf9062… |
| 66.199.0.0 – 66.199.31.255 | 8,192 | US |
allocated | 2001-11-13 | e5e3b9c13678… |
| 68.0.0.0 – 68.15.255.255 | 1,048,576 | US |
allocated | 2001-11-12 | 4cad11d18482… |
| 66.186.192.0 – 66.186.193.255 | 512 | US |
allocated | 2001-11-09 | 66e68ecd93af… |
| 66.186.197.0 – 66.186.197.255 | 256 | US |
allocated | 2001-11-09 | 66e68ecd93af… |
| 66.186.206.0 – 66.186.206.255 | 256 | US |
allocated | 2001-11-09 | 66e68ecd93af… |
| 66.186.224.0 – 66.186.255.255 | 8,192 | US |
allocated | 2001-11-09 | 4cbfdfccc395… |
| 66.196.192.0 – 66.196.255.255 | 16,384 | US |
allocated | 2001-11-09 | e08441e4beab… |
| 67.80.0.0 – 67.87.255.255 | 524,288 | US |
allocated | 2001-11-09 | aaf656fbdfd1… |
| 66.186.128.0 – 66.186.143.255 | 4,096 | US |
allocated | 2001-11-08 | 532796486356… |
| 66.186.160.0 – 66.186.191.255 | 8,192 | US |
allocated | 2001-11-08 | f57036a35d7c… |
| 24.171.0.0 – 24.171.127.255 | 32,768 | US |
allocated | 2001-11-07 | 2ae6f8bcdd0f… |
| 66.186.0.0 – 66.186.31.255 | 8,192 | US |
allocated | 2001-11-07 | 28f2d37d052b… |
| 66.186.64.0 – 66.186.95.255 | 8,192 | CA |
allocated | 2001-11-07 | 0d46a8b30ddc… |
| 67.24.0.0 – 67.31.255.255 | 524,288 | US |
allocated | 2001-11-07 | e5e3b9c13678… |
| 66.185.160.0 – 66.185.175.255 | 4,096 | US |
allocated | 2001-11-06 | feedcd8ee49c… |
| 24.57.0.0 – 24.57.255.255 | 65,536 | CA |
allocated | 2001-11-05 | 7f8d2810def2… |
| 24.58.0.0 – 24.59.255.255 | 131,072 | US |
allocated | 2001-11-02 | d2fc8fbc818f… |
| 66.185.80.0 – 66.185.95.255 | 4,096 | CA |
allocated | 2001-11-01 | df8a77919027… |
| 66.198.0.0 – 66.198.127.255 | 32,768 | US |
allocated | 2001-11-01 | 1592250ba841… |
| 66.198.128.0 – 66.198.191.255 | 16,384 | US |
allocated | 2001-11-01 | 1592250ba841… |
| 67.32.0.0 – 67.33.255.255 | 131,072 | US |
allocated | 2001-11-01 | 81e05477cc28… |
| 66.185.64.0 – 66.185.79.255 | 4,096 | US |
allocated | 2001-10-30 | 0374ced4819c… |
| 66.185.96.0 – 66.185.111.255 | 4,096 | US |
allocated | 2001-10-30 | 892193366df8… |
| 66.196.64.0 – 66.196.127.255 | 16,384 | US |
allocated | 2001-10-30 | c2dfb9e7c865… |
| 66.197.0.0 – 66.197.127.255 | 32,768 | US |
allocated | 2001-10-30 | 11605ea9b000… |
| 66.185.32.0 – 66.185.47.255 | 4,096 |  VI |
allocated | 2001-10-29 | 8f14470a2eaf… |
| 66.180.176.0 – 66.180.191.255 | 4,096 | US |
allocated | 2001-10-26 | 6d1a5524ff23… |
| 66.185.0.0 – 66.185.15.255 | 4,096 | US |
allocated | 2001-10-26 | d538268083a4… |
| 66.185.224.0 – 66.185.239.255 | 4,096 | US |
allocated | 2001-10-26 | b9063101280c… |
| 66.185.240.0 – 66.185.255.255 | 4,096 | US |
allocated | 2001-10-26 | 73670b7fa6a7… |
| 64.247.192.0 – 64.247.223.255 | 8,192 | US |
allocated | 2001-10-25 | f5f7b3f4a69d… |
| 66.181.192.0 – 66.181.207.255 | 4,096 | US |
allocated | 2001-10-25 | 8de61d77c1b7… |
| 66.192.0.0 – 66.195.255.255 | 262,144 | US |
allocated | 2001-10-25 | e5e3b9c13678… |
| 64.247.128.0 – 64.247.159.255 | 8,192 | CA |
allocated | 2001-10-24 | 1c91e66cffcb… |
| 66.181.96.0 – 66.181.111.255 | 4,096 | US |
allocated | 2001-10-24 | f2a9de878e1f… |
| 66.182.128.0 – 66.182.191.255 | 16,384 | US |
allocated | 2001-10-24 | b8807d2824b9… |
| 66.188.0.0 – 66.191.255.255 | 262,144 | US |
allocated | 2001-10-24 | 2ae6f8bcdd0f… |
| 24.74.0.0 – 24.74.255.255 | 65,536 | US |
allocated | 2001-10-23 | d2fc8fbc818f… |
| 66.181.64.0 – 66.181.95.255 | 8,192 | US |
allocated | 2001-10-23 | 1cb21afb6f24… |
| 24.56.160.0 – 24.56.163.255 | 1,024 | US |
allocated | 2001-10-19 | b473330fef07… |
| 24.56.170.0 – 24.56.171.255 | 512 | US |
allocated | 2001-10-19 | b473330fef07… |
| 24.56.176.0 – 24.56.179.255 | 1,024 | US |
allocated | 2001-10-19 | b473330fef07… |
| 24.56.180.0 – 24.56.181.255 | 512 | US |
allocated | 2001-10-19 | b473330fef07… |
| 24.56.188.0 – 24.56.189.255 | 512 | US |
allocated | 2001-10-19 | b473330fef07… |
| 24.56.192.0 – 24.56.255.255 | 16,384 | US |
allocated | 2001-10-19 | 1a922969fbba… |
| 64.246.192.0 – 64.246.223.255 | 8,192 | US |
allocated | 2001-10-18 | e5e3b9c13678… |
| 64.247.0.0 – 64.247.63.255 | 16,384 | US |
allocated | 2001-10-18 | 0e660f095dee… |
| 64.247.64.0 – 64.247.127.255 | 16,384 | US |
allocated | 2001-10-18 | 60c47e8ce9b1… |
| 66.181.224.0 – 66.181.239.255 | 4,096 | US |
allocated | 2001-10-18 | 48cd4b0eb425… |
| 66.181.240.0 – 66.181.255.255 | 4,096 | US |
allocated | 2001-10-18 | a9c77f7bd563… |
| 66.183.0.0 – 66.183.255.255 | 65,536 | CA |
allocated | 2001-10-18 | 0e702695cc8d… |
| 66.181.0.0 – 66.181.31.255 | 8,192 | US |
allocated | 2001-10-17 | feb1692f1bbb… |
| 66.182.0.0 – 66.182.63.255 | 16,384 | US |
allocated | 2001-10-17 | 07b4afc6ca39… |
| 24.56.96.0 – 24.56.111.255 | 4,096 | US |
allocated | 2001-10-16 | e5e3b9c13678… |
| 66.180.192.0 – 66.180.207.255 | 4,096 | US |
allocated | 2001-10-16 | d537614cb5a4… |
| 67.112.0.0 – 67.127.255.255 | 1,048,576 | US |
allocated | 2001-10-16 | 81e05477cc28… |
| 64.246.128.0 – 64.246.159.255 | 8,192 | US |
allocated | 2001-10-15 | 95adc31e7aaa… |
| 66.180.128.0 – 66.180.159.255 | 8,192 | US |
allocated | 2001-10-15 | 12c0cba60d75… |