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 |
|---|---|---|---|---|---|
| 66.231.32.0 – 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 | 447a4f6460f9… |
| 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… |
| 64.72.64.0 – 64.72.95.255 | 8,192 | US |
allocated | 2002-01-28 | 34d342be0361… |
| 68.80.0.0 – 68.87.255.255 | 524,288 | US |
allocated | 2002-01-28 | 3a7b40ab58f6… |
| 64.72.0.0 – 64.72.31.255 | 8,192 | US |
allocated | 2002-01-25 | 8fcf50c1d63e… |
| 66.223.10.0 – 66.223.11.255 | 512 | CA |
allocated | 2002-01-25 | 3c781914ab27… |
| 66.223.16.0 – 66.223.31.255 | 4,096 | CA |
allocated | 2002-01-25 | 3c781914ab27… |
| 66.223.48.0 – 66.223.48.255 | 256 | CA |
allocated | 2002-01-25 | 3c781914ab27… |
| 66.223.50.0 – 66.223.51.255 | 512 | CA |
allocated | 2002-01-25 | 3c781914ab27… |
| 66.223.52.0 – 66.223.55.255 | 1,024 | CA |
allocated | 2002-01-25 | 3c781914ab27… |
| 66.223.56.0 – 66.223.59.255 | 1,024 | CA |
allocated | 2002-01-25 | 3c781914ab27… |
| 66.223.62.0 – 66.223.62.255 | 256 | CA |
allocated | 2002-01-25 | 3c781914ab27… |
| 66.223.94.0 – 66.223.95.255 | 512 | CA |
allocated | 2002-01-25 | 3c781914ab27… |
| 66.223.96.0 – 66.223.97.255 | 512 | CA |
allocated | 2002-01-25 | 3c781914ab27… |
| 66.223.98.0 – 66.223.98.255 | 256 | CA |
allocated | 2002-01-25 | 3c781914ab27… |
| 66.223.108.0 – 66.223.111.255 | 1,024 | CA |
allocated | 2002-01-25 | 3c781914ab27… |
| 66.223.112.0 – 66.223.119.255 | 2,048 | CA |
allocated | 2002-01-25 | 3c781914ab27… |
| 66.226.0.0 – 66.226.31.255 | 8,192 | US |
allocated | 2002-01-25 | 28f2d37d052b… |
| 66.220.224.0 – 66.220.255.255 | 8,192 | US |
allocated | 2002-01-24 | 7dd6f0b4075f… |
| 66.222.128.0 – 66.222.255.255 | 32,768 | CA |
allocated | 2002-01-24 | 0e702695cc8d… |
| 66.220.96.0 – 66.220.127.255 | 8,192 | US |
allocated | 2002-01-23 | b473330fef07… |
| 66.219.128.0 – 66.219.191.255 | 16,384 | US |
allocated | 2002-01-18 | b80a3c9f9777… |
| 66.220.32.0 – 66.220.35.255 | 1,024 | US |
allocated | 2002-01-18 | fdc2db5ed59b… |
| 66.220.36.0 – 66.220.36.255 | 256 | US |
allocated | 2002-01-18 | fdc2db5ed59b… |
| 66.220.40.0 – 66.220.41.255 | 512 | US |
allocated | 2002-01-18 | fdc2db5ed59b… |
| 66.220.44.0 – 66.220.45.255 | 512 | US |
allocated | 2002-01-18 | fdc2db5ed59b… |
| 66.220.58.0 – 66.220.58.255 | 256 | US |
allocated | 2002-01-18 | b648bfc516f1… |
| 66.220.62.0 – 66.220.63.255 | 512 | US |
allocated | 2002-01-18 | fdc2db5ed59b… |
| 66.224.0.0 – 66.224.255.255 | 65,536 | US |
allocated | 2002-01-18 | 07b4afc6ca39… |
| 216.229.144.0 – 216.229.159.255 | 4,096 | US |
allocated | 2002-01-18 | ffc6db994528… |
| 66.58.128.0 – 66.58.255.255 | 32,768 | US |
allocated | 2002-01-17 | ad5a8840e6d5… |
| 66.218.224.0 – 66.218.239.255 | 4,096 | US |
allocated | 2002-01-17 | e7cd5c0d0a88… |
| 66.218.240.0 – 66.218.247.255 | 2,048 | US |
allocated | 2002-01-17 | 43673755dd32… |
| 66.218.248.0 – 66.218.255.255 | 2,048 | US |
allocated | 2002-01-17 | e7cd5c0d0a88… |
| 66.220.0.0 – 66.220.31.255 | 8,192 | US |
allocated | 2002-01-17 | e2e9e26bea21… |
| 66.222.0.0 – 66.222.127.255 | 32,768 | US |
allocated | 2002-01-17 | b473330fef07… |
| 66.218.128.0 – 66.218.131.255 | 1,024 | US |
allocated | 2002-01-16 | faf2a6f0cf9d… |
| 66.218.192.0 – 66.218.207.255 | 4,096 | US |
allocated | 2002-01-16 | 8300bbb71e8a… |
| 66.218.64.0 – 66.218.95.255 | 8,192 | US |
allocated | 2002-01-15 | c2dfb9e7c865… |
| 66.216.128.0 – 66.216.191.255 | 16,384 | US |
allocated | 2002-01-14 | 6c065d5b54b8… |
| 66.217.0.0 – 66.217.255.255 | 65,536 | US |
allocated | 2002-01-09 | 6c065d5b54b8… |
| 66.218.0.0 – 66.218.31.255 | 8,192 | US |
allocated | 2002-01-09 | ea3a4c65b990… |
| 66.212.192.0 – 66.212.223.255 | 8,192 | US |
allocated | 2002-01-08 | 98e6c615fd07… |
| 66.216.0.0 – 66.216.63.255 | 16,384 | US |
allocated | 2002-01-08 | 66e68ecd93af… |
| 66.216.64.0 – 66.216.127.255 | 16,384 | US |
allocated | 2002-01-08 | c66e83fbb76c… |
| 207.126.176.0 – 207.126.191.255 | 4,096 | US |
allocated | 2002-01-08 | da0313f37869… |
| 66.209.192.0 – 66.209.223.255 | 8,192 | US |
allocated | 2002-01-04 | 80f5df88c87e… |
| 66.212.128.0 – 66.212.159.255 | 8,192 | US |
allocated | 2002-01-04 | 424bfcacb580… |
| 66.213.128.0 – 66.213.159.255 | 8,192 | US |
allocated | 2002-01-04 | 34d342be0361… |
| 66.209.128.0 – 66.209.143.255 | 4,096 | US |
allocated | 2002-01-02 | 093c25c34dc7… |
| 66.214.0.0 – 66.215.255.255 | 131,072 | US |
allocated | 2001-12-31 | 2ae6f8bcdd0f… |
| 66.212.64.0 – 66.212.79.255 | 4,096 | US |
allocated | 2001-12-27 | 18e6b17f5ea1… |
| 66.212.80.0 – 66.212.95.255 | 4,096 | US |
allocated | 2001-12-27 | 1f9dbe1dd925… |
| 66.213.0.0 – 66.213.127.255 | 32,768 | US |
allocated | 2001-12-27 | 6c2b9e1214fd… |
| 66.208.192.0 – 66.208.255.255 | 16,384 | US |
allocated | 2001-12-21 | 3a7b40ab58f6… |
| 66.209.0.0 – 66.209.31.255 | 8,192 | US |
allocated | 2001-12-21 | 81e05477cc28… |
| 66.209.64.0 – 66.209.95.255 | 8,192 | US |
allocated | 2001-12-21 | 2f174894386d… |
| 66.212.0.0 – 66.212.15.255 | 4,096 | US |
allocated | 2001-12-21 | f1e69b8e49c7… |
| 216.116.16.0 – 216.116.31.255 | 4,096 | US |
allocated | 2001-12-21 | 9493ca86769a… |
| 66.207.160.0 – 66.207.175.255 | 4,096 | US |
allocated | 2001-12-20 | d811d7a8561f… |
| 66.207.192.0 – 66.207.223.255 | 8,192 | CA |
allocated | 2001-12-20 | a2e1bb6f40a4… |
| 66.207.224.0 – 66.207.255.255 | 8,192 | US |
allocated | 2001-12-20 | b1da36e418e3… |
| 66.207.128.0 – 66.207.143.255 | 4,096 | US |
allocated | 2001-12-19 | 97a2476b7659… |
| 66.210.0.0 – 66.210.255.255 | 65,536 | US |
allocated | 2001-12-19 | 4cad11d18482… |
| 66.208.128.0 – 66.208.191.255 | 16,384 | US |
allocated | 2001-12-18 | cdb7d42057bd… |
| 154.5.0.0 – 154.5.255.255 | 65,536 | CA |
allocated | 2001-12-18 | 0e702695cc8d… |
| 66.207.96.0 – 66.207.127.255 | 8,192 | CA |
allocated | 2001-12-17 | 0042cdeb1e05… |
| 66.208.0.0 – 66.208.63.255 | 16,384 | US |
allocated | 2001-12-14 | 66316ac7be00… |
| 68.24.0.0 – 68.31.255.255 | 524,288 | US |
allocated | 2001-12-14 | c4fef8e680d3… |
| 66.206.224.0 – 66.206.255.255 | 8,192 | CA |
allocated | 2001-12-13 | 041ef52753d9… |
| 66.207.0.0 – 66.207.31.255 | 8,192 | US |
allocated | 2001-12-13 | 5e840135adab… |
| 66.207.65.0 – 66.207.65.255 | 256 | US |
allocated | 2001-12-13 | 6f1ca564de76… |
| 66.207.66.0 – 66.207.67.255 | 512 | US |
allocated | 2001-12-13 | 6f1ca564de76… |
| 66.207.68.0 – 66.207.69.255 | 512 | US |
allocated | 2001-12-13 | 6f1ca564de76… |
| 66.207.72.0 – 66.207.73.255 | 512 | US |
allocated | 2001-12-13 | 6f1ca564de76… |
| 66.207.74.0 – 66.207.74.255 | 256 | US |
allocated | 2001-12-13 | 6f1ca564de76… |