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 |
|---|---|---|---|---|---|
| 204.10.44.0 – 204.10.47.255 | 1,024 |  US |
allocated | 2005-01-04 | 80038a48eee9… |
| 216.119.176.0 – 216.119.191.255 | 4,096 | US |
allocated | 2005-01-04 | b88a875fa9b9… |
| 204.10.48.0 – 204.10.51.255 | 1,024 | US |
allocated | 2005-01-03 | db65d2671150… |
| 72.21.192.0 – 72.21.223.255 | 8,192 | US |
allocated | 2004-12-30 | bda9ea2b27b8… |
| 72.21.224.0 – 72.21.255.255 | 8,192 | US |
allocated | 2004-12-30 | c2c562c4f400… |
| 216.180.176.0 – 216.180.191.255 | 4,096 | US |
allocated | 2004-12-30 | bc9fc2d53549… |
| 72.25.128.0 – 72.25.191.255 | 16,384 | US |
allocated | 2004-12-29 | 07b4afc6ca39… |
| 204.10.40.0 – 204.10.43.255 | 1,024 | US |
allocated | 2004-12-29 | ce654d72bcc4… |
| 204.10.36.0 – 204.10.39.255 | 1,024 | US |
allocated | 2004-12-28 | a67ad7f7f99a… |
| 216.10.48.0 – 216.10.51.255 | 1,024 | US |
allocated | 2004-12-28 | 5fd778e73004… |
| 216.10.52.0 – 216.10.52.255 | 256 | US |
allocated | 2004-12-28 | 5fd778e73004… |
| 216.10.55.0 – 216.10.55.255 | 256 | US |
allocated | 2004-12-28 | 5fd778e73004… |
| 216.10.56.0 – 216.10.59.255 | 1,024 | US |
allocated | 2004-12-28 | 5fd778e73004… |
| 216.10.61.0 – 216.10.61.255 | 256 | US |
allocated | 2004-12-28 | 5fd778e73004… |
| 72.21.160.0 – 72.21.191.255 | 8,192 | US |
allocated | 2004-12-22 | 99033d963ccc… |
| 72.25.0.0 – 72.25.63.255 | 16,384 | US |
allocated | 2004-12-22 | 6c065d5b54b8… |
| 204.10.84.0 – 204.10.87.255 | 1,024 | US |
allocated | 2004-12-22 | 4912a57bdaf2… |
| 72.20.192.0 – 72.20.255.255 | 16,384 | US |
allocated | 2004-12-21 | cadf96870499… |
| 204.10.80.0 – 204.10.83.255 | 1,024 | US |
allocated | 2004-12-21 | 6a066418508d… |
| 209.124.176.0 – 209.124.191.255 | 4,096 | US |
allocated | 2004-12-21 | 87af7399642b… |
| 216.189.208.0 – 216.189.223.255 | 4,096 | US |
allocated | 2004-12-21 | f984730f795a… |
| 71.32.0.0 – 71.39.255.255 | 524,288 | US |
allocated | 2004-12-17 | cdb7d42057bd… |
| 72.20.128.0 – 72.20.128.255 | 256 | US |
allocated | 2004-12-17 | bc9b2d83c16d… |
| 72.20.130.0 – 72.20.131.255 | 512 | US |
allocated | 2004-12-17 | bc9b2d83c16d… |
| 72.20.136.0 – 72.20.136.255 | 256 | US |
allocated | 2004-12-17 | bc9b2d83c16d… |
| 72.20.139.0 – 72.20.139.255 | 256 | US |
allocated | 2004-12-17 | bc9b2d83c16d… |
| 72.20.141.0 – 72.20.141.255 | 256 | US |
allocated | 2004-12-17 | bc9b2d83c16d… |
| 72.20.142.0 – 72.20.143.255 | 512 | US |
allocated | 2004-12-17 | bc9b2d83c16d… |
| 72.20.145.0 – 72.20.145.255 | 256 | US |
allocated | 2004-12-17 | bc9b2d83c16d… |
| 72.20.148.0 – 72.20.149.255 | 512 | US |
allocated | 2004-12-17 | bc9b2d83c16d… |
| 72.20.150.0 – 72.20.150.255 | 256 | US |
allocated | 2004-12-17 | bc9b2d83c16d… |
| 72.20.154.0 – 72.20.154.255 | 256 | US |
allocated | 2004-12-17 | bc9b2d83c16d… |
| 72.21.96.0 – 72.21.127.255 | 8,192 | US |
allocated | 2004-12-17 | 11ecd9164b16… |
| 72.20.64.0 – 72.20.95.255 | 8,192 | US |
allocated | 2004-12-16 | 443db4889f6d… |
| 204.10.64.0 – 204.10.71.255 | 2,048 | US |
allocated | 2004-12-16 | 9c960b3267d5… |
| 204.10.124.0 – 204.10.127.255 | 1,024 | US |
allocated | 2004-12-16 | 9a27f5c3234d… |
| 216.82.176.0 – 216.82.191.255 | 4,096 | US |
allocated | 2004-12-16 | 92847c100780… |
| 72.24.0.0 – 72.24.255.255 | 65,536 | US |
allocated | 2004-12-14 | af18a1eb1972… |
| 72.16.0.0 – 72.16.127.255 | 32,768 | US |
allocated | 2004-12-13 | 6c065d5b54b8… |
| 204.10.96.0 – 204.10.103.255 | 2,048 | US |
allocated | 2004-12-10 | bfd9bb2ba832… |
| 204.10.136.0 – 204.10.143.255 | 2,048 | US |
allocated | 2004-12-09 | 84b1251f3230… |
| 204.10.144.0 – 204.10.147.255 | 1,024 | US |
allocated | 2004-12-09 | 09a753649d47… |
| 71.24.0.0 – 71.27.255.255 | 262,144 | US |
allocated | 2004-12-08 | 3a7b40ab58f6… |
| 72.19.192.0 – 72.19.255.255 | 16,384 | US |
allocated | 2004-12-08 | 8a9af80225d4… |
| 72.21.32.0 – 72.21.63.255 | 8,192 | US |
allocated | 2004-12-08 | 67ce42f5d914… |
| 204.10.128.0 – 204.10.131.255 | 1,024 | US |
allocated | 2004-12-08 | 2cd5fcb30974… |
| 206.41.144.0 – 206.41.159.255 | 4,096 | US |
allocated | 2004-12-08 | c2c562c4f400… |
| 206.125.208.0 – 206.125.223.255 | 4,096 | US |
allocated | 2004-12-08 | ec11830c4c67… |
| 72.23.0.0 – 72.23.255.255 | 65,536 | US |
allocated | 2004-12-06 | 635e221de053… |
| 72.21.8.0 – 72.21.9.255 | 512 | US |
allocated | 2004-12-03 | 2911dd1b758b… |
| 72.21.12.0 – 72.21.15.255 | 1,024 | US |
allocated | 2004-12-03 | 2911dd1b758b… |
| 72.21.20.0 – 72.21.20.255 | 256 | US |
allocated | 2004-12-03 | 2911dd1b758b… |
| 72.21.22.0 – 72.21.22.255 | 256 | US |
allocated | 2004-12-03 | 2911dd1b758b… |
| 216.49.208.0 – 216.49.223.255 | 4,096 | US |
allocated | 2004-12-03 | e674822ac75b… |
| 216.105.176.0 – 216.105.191.255 | 4,096 | US |
allocated | 2004-12-03 | 215eb8393a4a… |
| 72.18.224.0 – 72.18.255.255 | 8,192 | US |
allocated | 2004-12-02 | 7f75b8e6c16c… |
| 72.19.128.0 – 72.19.191.255 | 16,384 | US |
allocated | 2004-12-02 | d538268083a4… |
| 204.10.196.0 – 204.10.199.255 | 1,024 | US |
allocated | 2004-12-02 | 0fca664501b7… |
| 206.41.112.0 – 206.41.127.255 | 4,096 | US |
allocated | 2004-12-02 | f5b3e4757987… |
| 209.16.112.0 – 209.16.127.255 | 4,096 | US |
allocated | 2004-12-02 | de94a62ce8f9… |
| 72.19.64.0 – 72.19.127.255 | 16,384 | US |
allocated | 2004-12-01 | 8600d3e98608… |
| 72.8.0.0 – 72.8.63.255 | 16,384 | US |
allocated | 2004-11-30 | 6c065d5b54b8… |
| 72.18.160.0 – 72.18.191.255 | 8,192 | US |
allocated | 2004-11-30 | 61a18383a4ee… |
| 72.18.192.0 – 72.18.207.255 | 4,096 | US |
allocated | 2004-11-30 | bdc76f5d845b… |
| 206.83.16.0 – 206.83.31.255 | 4,096 | US |
allocated | 2004-11-30 | 38753105ac5b… |
| 207.126.144.0 – 207.126.159.255 | 4,096 | US |
allocated | 2004-11-30 | 4b60998be2f1… |
| 72.15.192.0 – 72.15.255.255 | 16,384 | US |
allocated | 2004-11-29 | 68ddf6a7f69b… |
| 72.18.128.0 – 72.18.159.255 | 8,192 | US |
allocated | 2004-11-29 | d1af1622e04e… |
| 204.10.216.0 – 204.10.223.255 | 2,048 | US |
allocated | 2004-11-29 | 5904c16a3024… |
| 206.53.144.0 – 206.53.159.255 | 4,096 |  CA |
allocated | 2004-11-29 | 81d84a66fa20… |
| 206.83.48.0 – 206.83.63.255 | 4,096 | US |
allocated | 2004-11-29 | 9d3c11115b56… |
| 206.253.144.0 – 206.253.159.255 | 4,096 | US |
allocated | 2004-11-29 | eaa4bb916340… |
| 72.15.144.0 – 72.15.159.255 | 4,096 | CA |
allocated | 2004-11-24 | 449259d9b4ce… |
| 72.18.96.0 – 72.18.111.255 | 4,096 | US |
allocated | 2004-11-23 | cb23b62f4037… |
| 206.41.48.0 – 206.41.63.255 | 4,096 | US |
allocated | 2004-11-22 | 92921d25e3ea… |
| 72.15.64.0 – 72.15.127.255 | 16,384 | US |
allocated | 2004-11-19 | e9f843549cbf… |
| 72.18.32.0 – 72.18.47.255 | 4,096 | US |
allocated | 2004-11-19 | 928ab51b355d… |
| 72.18.0.0 – 72.18.31.255 | 8,192 | US |
allocated | 2004-11-18 | f81d9edf6843… |
| 204.10.200.0 – 204.10.207.255 | 2,048 | CA |
allocated | 2004-11-18 | 5403aa050bcc… |
| 204.10.244.0 – 204.10.247.255 | 1,024 | US |
allocated | 2004-11-18 | 6bbec5f9d067… |
| 206.183.176.0 – 206.183.191.255 | 4,096 | US |
allocated | 2004-11-18 | acefdf74cbbe… |
| 72.4.128.0 – 72.4.159.255 | 8,192 | US |
allocated | 2004-11-17 | f9107f6aa386… |
| 72.4.160.0 – 72.4.175.255 | 4,096 | US |
allocated | 2004-11-17 | f9107f6aa386… |
| 72.13.160.0 – 72.13.191.255 | 8,192 | CA |
allocated | 2004-11-17 | aa1284f96cc4… |
| 72.13.192.0 – 72.13.207.255 | 4,096 | US |
allocated | 2004-11-16 | 15b8a461947c… |
| 72.13.224.0 – 72.13.255.255 | 8,192 | US |
allocated | 2004-11-16 | a7f7463af3d3… |
| 72.15.0.0 – 72.15.31.255 | 8,192 | US |
allocated | 2004-11-16 | f57036a35d7c… |
| 207.231.112.0 – 207.231.127.255 | 4,096 | US |
allocated | 2004-11-16 | 87eb587d5575… |
| 72.13.128.0 – 72.13.159.255 | 8,192 | US |
allocated | 2004-11-12 | feae0c5faca3… |
| 204.10.240.0 – 204.10.243.255 | 1,024 | CA |
allocated | 2004-11-12 | f8447314fcbe… |
| 72.13.96.0 – 72.13.111.255 | 4,096 | US |
allocated | 2004-11-11 | 6c9fbbc78a24… |
| 72.14.128.0 – 72.14.159.255 | 8,192 | US |
allocated | 2004-11-10 | 6442f73ea58e… |
| 72.14.192.0 – 72.14.255.255 | 16,384 | US |
allocated | 2004-11-10 | 9d99e3f7d38d… |
| 206.71.16.0 – 206.71.31.255 | 4,096 | US |
allocated | 2004-11-10 | d3529f254bc5… |
| 206.80.240.0 – 206.80.255.255 | 4,096 | CA |
allocated | 2004-11-10 | 9f2122981d76… |
| 71.240.0.0 – 71.240.255.255 | 65,536 | US |
allocated | 2004-11-09 | e220ed812a4c… |
| 71.241.0.0 – 71.241.127.255 | 32,768 | US |
allocated | 2004-11-09 | e220ed812a4c… |
| 71.241.128.0 – 71.241.143.255 | 4,096 | US |
allocated | 2004-11-09 | 013c0ebdd6ce… |
| 71.241.144.0 – 71.241.159.255 | 4,096 | US |
allocated | 2004-11-09 | e220ed812a4c… |
| 71.241.160.0 – 71.241.191.255 | 8,192 | US |
allocated | 2004-11-09 | e220ed812a4c… |