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
1,645,653,504
📦
IPv4 networks
76,715
delegated blocks
🧭
IPv6 networks
11,358
delegated blocks
🔗
Autonomous systems
34,034
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 204.80.221.0 – 204.80.221.255 | 256 |  US |
allocated | 1995-02-07 | a562deac856d… |
| 204.80.222.0 – 204.80.222.255 | 256 | US |
allocated | 1995-02-07 | c6611c8767b9… |
| 204.80.223.0 – 204.80.223.255 | 256 | US |
allocated | 1995-02-07 | e28c09c97db9… |
| 204.80.224.0 – 204.80.224.255 | 256 | US |
allocated | 1995-02-07 | 876efa136094… |
| 204.80.225.0 – 204.80.225.255 | 256 | US |
allocated | 1995-02-07 | 5b7ff23dac0b… |
| 204.80.227.0 – 204.80.227.255 | 256 | US |
allocated | 1995-02-07 | dd1bdf6f6de9… |
| 204.209.254.0 – 204.209.254.255 | 256 |  CA |
allocated | 1995-02-07 | e51da06e8faf… |
| 204.106.64.0 – 204.106.127.255 | 16,384 | US |
allocated | 1995-02-06 | eee4911c1d68… |
| 204.128.184.0 – 204.128.184.255 | 256 | US |
allocated | 1995-02-06 | 7dfdcb863fcc… |
| 204.128.185.0 – 204.128.185.255 | 256 | US |
allocated | 1995-02-06 | 2bebfb64926d… |
| 204.128.186.0 – 204.128.186.255 | 256 | US |
allocated | 1995-02-06 | 61cc3c035afb… |
| 204.128.188.0 – 204.128.188.255 | 256 | US |
allocated | 1995-02-06 | be87a6f57401… |
| 204.128.189.0 – 204.128.189.255 | 256 | US |
allocated | 1995-02-06 | 45f48a2b3043… |
| 204.128.190.0 – 204.128.190.255 | 256 | US |
allocated | 1995-02-06 | f90be79b4b6f… |
| 204.128.191.0 – 204.128.191.255 | 256 | US |
allocated | 1995-02-06 | 4ac31aa50267… |
| 204.128.192.0 – 204.128.192.255 | 256 | US |
allocated | 1995-02-06 | 6a2bec1ff1c3… |
| 204.128.193.0 – 204.128.193.255 | 256 | US |
allocated | 1995-02-06 | 1e292f6e28cf… |
| 204.194.248.0 – 204.194.255.255 | 2,048 | US |
allocated | 1995-02-06 | df6d6034134c… |
| 204.235.144.0 – 204.235.159.255 | 4,096 | US |
allocated | 1995-02-03 | 52ad5b039d2f… |
| 204.235.160.0 – 204.235.161.255 | 512 | US |
allocated | 1995-02-03 | c806dc0282a4… |
| 204.235.162.0 – 204.235.163.255 | 512 | US |
allocated | 1995-02-03 | 52ad5b039d2f… |
| 204.235.164.0 – 204.235.167.255 | 1,024 | US |
allocated | 1995-02-03 | 52ad5b039d2f… |
| 204.235.168.0 – 204.235.169.255 | 512 | US |
allocated | 1995-02-03 | 87f8461fd53b… |
| 204.235.170.0 – 204.235.171.255 | 512 | US |
allocated | 1995-02-03 | 32e081a21400… |
| 204.235.172.0 – 204.235.173.255 | 512 | US |
allocated | 1995-02-03 | 162d8e50912f… |
| 204.235.174.0 – 204.235.175.255 | 512 | US |
allocated | 1995-02-03 | 52ad5b039d2f… |
| 204.245.0.0 – 204.245.63.255 | 16,384 | US |
allocated | 1995-02-03 | e5e3b9c13678… |
| 204.245.64.0 – 204.245.127.255 | 16,384 | US |
allocated | 1995-02-03 | cdb7d42057bd… |
| 205.128.0.0 – 205.131.255.255 | 262,144 | US |
allocated | 1995-02-03 | e5e3b9c13678… |
| 204.78.64.0 – 204.78.127.255 | 16,384 | US |
allocated | 1995-02-02 | 2623748f448d… |
| 204.128.181.0 – 204.128.181.255 | 256 | US |
allocated | 1995-02-02 | 9dd931ef979b… |
| 204.128.183.0 – 204.128.183.255 | 256 | US |
allocated | 1995-02-02 | b752e4a1339d… |
| 204.152.106.0 – 204.152.107.255 | 512 | US |
allocated | 1995-02-02 | fe3f59b29b6c… |
| 204.152.108.0 – 204.152.109.255 | 512 | US |
allocated | 1995-02-02 | 2d90cbf4f78e… |
| 204.194.240.0 – 204.194.247.255 | 2,048 | US |
allocated | 1995-02-02 | 54d8c417dfb0… |
| 204.235.112.0 – 204.235.119.255 | 2,048 | US |
allocated | 1995-02-02 | d2fc8fbc818f… |
| 204.235.120.0 – 204.235.121.255 | 512 | US |
allocated | 1995-02-02 | d2fc8fbc818f… |
| 204.235.128.0 – 204.235.135.255 | 2,048 | US |
allocated | 1995-02-02 | 0418d3fd070a… |
| 204.235.136.0 – 204.235.139.255 | 1,024 | US |
allocated | 1995-02-02 | 0418d3fd070a… |
| 204.235.140.0 – 204.235.141.255 | 512 | US |
allocated | 1995-02-02 | 0418d3fd070a… |
| 205.132.4.0 – 205.132.4.255 | 256 | US |
allocated | 1995-02-02 | 4c758a54ea7c… |
| 205.132.5.0 – 205.132.5.255 | 256 | US |
allocated | 1995-02-02 | 41d606401cb6… |
| 205.132.6.0 – 205.132.7.255 | 512 | US |
allocated | 1995-02-02 | 4c758a54ea7c… |
| 205.153.220.0 – 205.153.223.255 | 1,024 | US |
allocated | 1995-02-02 | 4886a79e4b71… |
| 171.128.0.0 – 171.191.255.255 | 4,194,304 | US |
allocated | 1995-02-01 | bef0bf61cb6f… |
| 171.192.0.0 – 171.199.255.255 | 524,288 | US |
allocated | 1995-02-01 | bef0bf61cb6f… |
| 171.200.0.0 – 171.203.255.255 | 262,144 | US |
allocated | 1995-02-01 | bef0bf61cb6f… |
| 171.204.0.0 – 171.205.255.255 | 131,072 | US |
allocated | 1995-02-01 | bef0bf61cb6f… |
| 171.206.0.0 – 171.206.255.255 | 65,536 | US |
allocated | 1995-02-01 | bef0bf61cb6f… |
| 199.253.184.0 – 199.253.191.255 | 2,048 | US |
allocated | 1995-02-01 | a31a30520395… |
| 204.77.147.0 – 204.77.147.255 | 256 | US |
allocated | 1995-02-01 | 0b03fd28c3d9… |
| 204.87.216.0 – 204.87.216.255 | 256 | US |
allocated | 1995-02-01 | e422a7725959… |
| 204.87.217.0 – 204.87.217.255 | 256 | US |
allocated | 1995-02-01 | 68f08f077a27… |
| 204.87.218.0 – 204.87.218.255 | 256 | US |
allocated | 1995-02-01 | c7aacf56829d… |
| 204.87.219.0 – 204.87.219.255 | 256 | US |
allocated | 1995-02-01 | 8154b4ce1946… |
| 204.87.220.0 – 204.87.220.255 | 256 | US |
allocated | 1995-02-01 | d75c23cd99cf… |
| 204.87.221.0 – 204.87.221.255 | 256 | US |
allocated | 1995-02-01 | 967d4e152c17… |
| 204.87.223.0 – 204.87.223.255 | 256 | US |
allocated | 1995-02-01 | 9a93e24da5b7… |
| 204.87.225.0 – 204.87.225.255 | 256 | US |
allocated | 1995-02-01 | 5ded668dc46f… |
| 204.87.226.0 – 204.87.226.255 | 256 | US |
allocated | 1995-02-01 | 3401aebd3fca… |
| 204.87.227.0 – 204.87.227.255 | 256 | US |
allocated | 1995-02-01 | 0ebc09c71494… |
| 204.137.128.0 – 204.137.191.255 | 16,384 | US |
allocated | 1995-02-01 | 37fe01d6d027… |
| 204.137.192.0 – 204.137.223.255 | 8,192 | US |
allocated | 1995-02-01 | 37fe01d6d027… |
| 204.227.192.0 – 204.227.223.255 | 8,192 | US |
allocated | 1995-02-01 | 0b9809a4ff86… |
| 204.239.1.0 – 204.239.1.255 | 256 | CA |
allocated | 1995-02-01 | 1c16839f6229… |
| 204.239.4.0 – 204.239.7.255 | 1,024 | CA |
allocated | 1995-02-01 | 7cb1c1d9d8dd… |
| 204.239.8.0 – 204.239.9.255 | 512 | CA |
allocated | 1995-02-01 | 273d33928343… |
| 204.239.10.0 – 204.239.10.255 | 256 | CA |
allocated | 1995-02-01 | 273d33928343… |
| 204.239.16.0 – 204.239.16.255 | 256 | CA |
allocated | 1995-02-01 | 73dfb93336ad… |
| 204.239.18.0 – 204.239.18.255 | 256 | CA |
allocated | 1995-02-01 | 514bca940e05… |
| 204.239.19.0 – 204.239.19.255 | 256 | CA |
allocated | 1995-02-01 | e84842f10af2… |
| 204.239.20.0 – 204.239.23.255 | 1,024 | CA |
allocated | 1995-02-01 | 0e4578d12f61… |
| 204.239.25.0 – 204.239.25.255 | 256 | CA |
allocated | 1995-02-01 | 18d665f332ae… |
| 204.239.26.0 – 204.239.27.255 | 512 | CA |
allocated | 1995-02-01 | 2084176679df… |
| 204.239.28.0 – 204.239.29.255 | 512 | CA |
allocated | 1995-02-01 | 7cb1c1d9d8dd… |
| 204.239.30.0 – 204.239.30.255 | 256 | CA |
allocated | 1995-02-01 | 67db57bbbbca… |
| 204.239.31.0 – 204.239.31.255 | 256 | CA |
allocated | 1995-02-01 | 65b650fff703… |
| 204.239.32.0 – 204.239.39.255 | 2,048 | CA |
allocated | 1995-02-01 | 76569eb72bd2… |
| 204.239.40.0 – 204.239.41.255 | 512 | CA |
allocated | 1995-02-01 | 6b1704e70ee9… |
| 204.239.42.0 – 204.239.42.255 | 256 | CA |
allocated | 1995-02-01 | 6b1704e70ee9… |
| 204.239.43.0 – 204.239.43.255 | 256 | CA |
allocated | 1995-02-01 | 588dd64ffe46… |
| 204.239.44.0 – 204.239.47.255 | 1,024 | CA |
allocated | 1995-02-01 | 588dd64ffe46… |
| 204.239.48.0 – 204.239.63.255 | 4,096 | CA |
allocated | 1995-02-01 | 46f66aa0fac3… |
| 204.239.64.0 – 204.239.65.255 | 512 | CA |
allocated | 1995-02-01 | 960b04dd92a4… |
| 204.239.66.0 – 204.239.66.255 | 256 | CA |
allocated | 1995-02-01 | 960b04dd92a4… |
| 204.239.67.0 – 204.239.67.255 | 256 | CA |
allocated | 1995-02-01 | 75ab8e777450… |
| 204.239.68.0 – 204.239.69.255 | 512 | CA |
allocated | 1995-02-01 | c23c789046f2… |
| 204.239.70.0 – 204.239.71.255 | 512 | CA |
allocated | 1995-02-01 | 75ab8e777450… |
| 204.239.72.0 – 204.239.72.255 | 256 | CA |
allocated | 1995-02-01 | 75ab8e777450… |
| 204.239.73.0 – 204.239.73.255 | 256 | CA |
allocated | 1995-02-01 | a64ddaf12aef… |
| 204.239.74.0 – 204.239.75.255 | 512 | CA |
allocated | 1995-02-01 | a64ddaf12aef… |
| 204.239.76.0 – 204.239.79.255 | 1,024 | CA |
allocated | 1995-02-01 | a64ddaf12aef… |
| 204.239.80.0 – 204.239.81.255 | 512 | CA |
allocated | 1995-02-01 | a64ddaf12aef… |
| 204.239.82.0 – 204.239.82.255 | 256 | CA |
allocated | 1995-02-01 | a64ddaf12aef… |
| 204.239.83.0 – 204.239.83.255 | 256 | CA |
allocated | 1995-02-01 | 4e37788b47b0… |
| 204.239.84.0 – 204.239.85.255 | 512 | CA |
allocated | 1995-02-01 | 4e37788b47b0… |
| 204.239.86.0 – 204.239.86.255 | 256 | CA |
allocated | 1995-02-01 | 4e37788b47b0… |
| 204.239.87.0 – 204.239.87.255 | 256 | CA |
allocated | 1995-02-01 | d4c055dc3b07… |
| 204.239.88.0 – 204.239.89.255 | 512 | CA |
allocated | 1995-02-01 | 767c7fcdc10a… |
| 204.239.90.0 – 204.239.90.255 | 256 | CA |
allocated | 1995-02-01 | 767c7fcdc10a… |