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
1,645,650,944
📦
IPv4 networks
76,728
delegated blocks
🧭
IPv6 networks
11,368
delegated blocks
🔗
Autonomous systems
34,055
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 204.231.227.0 – 204.231.227.255 | 256 |  US |
allocated | 1995-04-21 | 01ded2cfbf92… |
| 204.231.228.0 – 204.231.228.255 | 256 |  DE |
allocated | 1995-04-21 | 0faff5ce905a… |
| 204.231.229.0 – 204.231.229.255 | 256 | US |
allocated | 1995-04-21 | 043854a6189a… |
| 204.231.230.0 – 204.231.230.255 | 256 |  JP |
allocated | 1995-04-21 | a28492c99368… |
| 204.231.231.0 – 204.231.231.255 | 256 |  BE |
allocated | 1995-04-21 | 2a163cd6eb79… |
| 204.231.232.0 – 204.231.232.255 | 256 |  GB |
allocated | 1995-04-21 | 93334f2678c6… |
| 204.231.233.0 – 204.231.233.255 | 256 | US |
allocated | 1995-04-21 | e479f282e06a… |
| 204.231.235.0 – 204.231.235.255 | 256 | US |
allocated | 1995-04-21 | 7d320510a37a… |
| 204.231.237.0 – 204.231.237.255 | 256 |  IT |
allocated | 1995-04-21 | 0a33001fbb5f… |
| 204.231.239.0 – 204.231.239.255 | 256 | US |
allocated | 1995-04-21 | 01ded2cfbf92… |
| 204.231.240.0 – 204.231.240.255 | 256 |  IE |
allocated | 1995-04-21 | a70e4ba4b1ac… |
| 204.231.242.0 – 204.231.243.255 | 512 | US |
allocated | 1995-04-21 | cc601b9e4cb6… |
| 204.231.244.0 – 204.231.245.255 | 512 | US |
allocated | 1995-04-21 | cc601b9e4cb6… |
| 204.231.246.0 – 204.231.246.255 | 256 | US |
allocated | 1995-04-21 | cc601b9e4cb6… |
| 204.231.247.0 – 204.231.247.255 | 256 | US |
allocated | 1995-04-21 | acc2b1577b30… |
| 204.231.248.0 – 204.231.249.255 | 512 | US |
allocated | 1995-04-21 | 18a0000fe2dc… |
| 204.231.250.0 – 204.231.250.255 | 256 | US |
allocated | 1995-04-21 | 18a0000fe2dc… |
| 204.231.251.0 – 204.231.251.255 | 256 | JP |
allocated | 1995-04-21 | 0dddb111d7c3… |
| 204.231.252.0 – 204.231.252.255 | 256 | JP |
allocated | 1995-04-21 | 0dddb111d7c3… |
| 204.238.53.0 – 204.238.53.255 | 256 | US |
allocated | 1995-04-21 | a06a7dfab24b… |
| 204.238.56.0 – 204.238.56.255 | 256 | US |
allocated | 1995-04-21 | f0bea5d47bea… |
| 205.151.17.0 – 205.151.17.255 | 256 |  CA |
allocated | 1995-04-21 | f4ff45421958… |
| 205.151.18.0 – 205.151.19.255 | 512 | CA |
allocated | 1995-04-21 | f4ff45421958… |
| 205.151.20.0 – 205.151.23.255 | 1,024 | CA |
allocated | 1995-04-21 | f4ff45421958… |
| 205.151.24.0 – 205.151.31.255 | 2,048 | CA |
allocated | 1995-04-21 | f4ff45421958… |
| 205.151.32.0 – 205.151.39.255 | 2,048 | CA |
allocated | 1995-04-21 | f4ff45421958… |
| 205.151.40.0 – 205.151.43.255 | 1,024 | CA |
allocated | 1995-04-21 | f4ff45421958… |
| 205.151.44.0 – 205.151.44.255 | 256 | CA |
allocated | 1995-04-21 | f4ff45421958… |
| 205.151.45.0 – 205.151.45.255 | 256 | CA |
allocated | 1995-04-21 | 3c4e1114f889… |
| 205.151.46.0 – 205.151.47.255 | 512 | CA |
allocated | 1995-04-21 | 3c4e1114f889… |
| 205.151.48.0 – 205.151.49.255 | 512 | CA |
allocated | 1995-04-21 | 3c4e1114f889… |
| 205.151.51.0 – 205.151.51.255 | 256 | CA |
allocated | 1995-04-21 | 1a8dc942fa8e… |
| 205.166.244.0 – 205.166.244.255 | 256 | US |
allocated | 1995-04-21 | a17c79846fbd… |
| 205.166.245.0 – 205.166.245.255 | 256 | US |
allocated | 1995-04-21 | 38ac1fa17ad7… |
| 205.166.246.0 – 205.166.246.255 | 256 | US |
allocated | 1995-04-21 | d6357cd9f8e6… |
| 205.166.248.0 – 205.166.248.255 | 256 | US |
allocated | 1995-04-21 | cf54b6778908… |
| 205.166.249.0 – 205.166.249.255 | 256 | US |
allocated | 1995-04-21 | d886de5cc3e9… |
| 205.166.250.0 – 205.166.250.255 | 256 | US |
allocated | 1995-04-21 | 4fab33c25bc2… |
| 205.166.252.0 – 205.166.252.255 | 256 | US |
allocated | 1995-04-21 | 19e86535629b… |
| 205.166.254.0 – 205.166.254.255 | 256 | US |
allocated | 1995-04-21 | da43aa9e20ec… |
| 205.167.58.0 – 205.167.59.255 | 512 | US |
allocated | 1995-04-21 | 1267cffdb2fb… |
| 205.167.62.0 – 205.167.63.255 | 512 | US |
allocated | 1995-04-21 | 8ec83b4cd31e… |
| 205.173.200.0 – 205.173.207.255 | 2,048 | US |
allocated | 1995-04-21 | 322913747ed2… |
| 204.126.244.0 – 204.126.245.255 | 512 | US |
allocated | 1995-04-20 | 1ee41ab9ac6b… |
| 205.159.108.0 – 205.159.108.255 | 256 | US |
allocated | 1995-04-20 | 51d76a42320c… |
| 205.166.232.0 – 205.166.232.255 | 256 | US |
allocated | 1995-04-20 | ad27659f6f77… |
| 205.166.233.0 – 205.166.233.255 | 256 | US |
allocated | 1995-04-20 | 114827a41da0… |
| 205.166.234.0 – 205.166.234.255 | 256 | US |
allocated | 1995-04-20 | 96d9495b2c16… |
| 205.166.236.0 – 205.166.236.255 | 256 | US |
allocated | 1995-04-20 | 5c31fc88a3d5… |
| 205.166.237.0 – 205.166.237.255 | 256 | US |
allocated | 1995-04-20 | 72336171178b… |
| 205.166.238.0 – 205.166.238.255 | 256 | US |
allocated | 1995-04-20 | 3bede434719c… |
| 205.166.239.0 – 205.166.239.255 | 256 | US |
allocated | 1995-04-20 | 6ce1458993ac… |
| 205.166.240.0 – 205.166.240.255 | 256 | US |
allocated | 1995-04-20 | 890a061e3aec… |
| 205.166.241.0 – 205.166.241.255 | 256 | US |
allocated | 1995-04-20 | 71a67f14563e… |
| 205.166.242.0 – 205.166.242.255 | 256 | US |
allocated | 1995-04-20 | 38f65544a03a… |
| 205.166.243.0 – 205.166.243.255 | 256 | US |
allocated | 1995-04-20 | 76472f88cf06… |
| 205.167.50.0 – 205.167.51.255 | 512 | US |
allocated | 1995-04-20 | a4d81802091a… |
| 205.167.52.0 – 205.167.53.255 | 512 | US |
allocated | 1995-04-20 | 1971bb12d595… |
| 205.173.176.0 – 205.173.183.255 | 2,048 | US |
allocated | 1995-04-20 | 5756fe600978… |
| 205.173.184.0 – 205.173.191.255 | 2,048 | US |
allocated | 1995-04-20 | 9947726fd3a7… |
| 205.173.192.0 – 205.173.199.255 | 2,048 | US |
allocated | 1995-04-20 | 4d8d803540d0… |
| 205.166.230.0 – 205.166.230.255 | 256 | US |
allocated | 1995-04-19 | dd7c7f659a47… |
| 141.174.0.0 – 141.174.255.255 | 65,536 | US |
allocated | 1995-04-18 | 47ac4889612a… |
| 192.75.191.0 – 192.75.191.255 | 256 | CA |
allocated | 1995-04-18 | 8d25fb9c3474… |
| 204.90.104.0 – 204.90.104.255 | 256 | US |
allocated | 1995-04-18 | 16407b37450d… |
| 205.166.223.0 – 205.166.223.255 | 256 | US |
allocated | 1995-04-18 | e2a08a95e9c8… |
| 205.166.224.0 – 205.166.224.255 | 256 | US |
allocated | 1995-04-18 | 152e6120de97… |
| 205.166.225.0 – 205.166.225.255 | 256 | US |
allocated | 1995-04-18 | 201718187cdc… |
| 205.166.226.0 – 205.166.226.255 | 256 | US |
allocated | 1995-04-18 | df4aa7191e78… |
| 205.166.227.0 – 205.166.227.255 | 256 | US |
allocated | 1995-04-18 | c70bfeff579a… |
| 205.166.228.0 – 205.166.228.255 | 256 | US |
allocated | 1995-04-18 | 233404f6ac58… |
| 205.166.229.0 – 205.166.229.255 | 256 | US |
allocated | 1995-04-18 | 7ea7dcbb356f… |
| 205.172.148.0 – 205.172.151.255 | 1,024 | US |
allocated | 1995-04-18 | ace55d4dc090… |
| 205.172.152.0 – 205.172.155.255 | 1,024 | US |
allocated | 1995-04-18 | ff6c5e15fcad… |
| 205.214.96.0 – 205.214.127.255 | 8,192 | US |
allocated | 1995-04-18 | 125542f801db… |
| 205.214.128.0 – 205.214.159.255 | 8,192 | US |
allocated | 1995-04-18 | 125542f801db… |
| 205.223.0.0 – 205.223.15.255 | 4,096 | US |
allocated | 1995-04-18 | 5346682d948c… |
| 204.138.103.0 – 204.138.103.255 | 256 | CA |
allocated | 1995-04-17 | de16e4533f3b… |
| 205.159.106.0 – 205.159.106.255 | 256 | US |
allocated | 1995-04-17 | 59a16d9c66d4… |
| 205.159.107.0 – 205.159.107.255 | 256 | US |
allocated | 1995-04-17 | 22d9ebcf6e35… |
| 170.220.0.0 – 170.220.255.255 | 65,536 | US |
allocated | 1995-04-14 | dc86ce7065a3… |
| 205.153.48.0 – 205.153.51.255 | 1,024 | US |
allocated | 1995-04-14 | 6278768ce356… |
| 205.166.222.0 – 205.166.222.255 | 256 | US |
allocated | 1995-04-14 | 4f5153f965af… |
| 205.167.40.0 – 205.167.41.255 | 512 | US |
allocated | 1995-04-14 | 78c3aaf8e2de… |
| 205.167.42.0 – 205.167.43.255 | 512 | US |
allocated | 1995-04-14 | 4c48935eba1b… |
| 205.167.44.0 – 205.167.45.255 | 512 | US |
allocated | 1995-04-14 | 7baafdf77dfe… |
| 205.167.46.0 – 205.167.47.255 | 512 | US |
allocated | 1995-04-14 | 1d3e167e368c… |
| 205.172.136.0 – 205.172.139.255 | 1,024 | US |
allocated | 1995-04-14 | f971c17ad218… |
| 205.172.140.0 – 205.172.143.255 | 1,024 | US |
allocated | 1995-04-14 | f2d47ebfee3a… |
| 205.172.144.0 – 205.172.147.255 | 1,024 | US |
allocated | 1995-04-14 | dcae70b4b5e9… |
| 205.175.96.0 – 205.175.127.255 | 8,192 | US |
allocated | 1995-04-14 | 57de9c13c3e4… |
| 205.203.64.0 – 205.203.71.255 | 2,048 | US |
allocated | 1995-04-14 | 332556fdace4… |
| 205.203.72.0 – 205.203.73.255 | 512 | US |
allocated | 1995-04-14 | 332556fdace4… |
| 205.203.76.0 – 205.203.79.255 | 1,024 | US |
allocated | 1995-04-14 | 332556fdace4… |
| 205.203.80.0 – 205.203.95.255 | 4,096 | US |
allocated | 1995-04-14 | 332556fdace4… |
| 205.214.32.0 – 205.214.63.255 | 8,192 | US |
allocated | 1995-04-14 | a7f7463af3d3… |
| 205.214.64.0 – 205.214.95.255 | 8,192 | US |
allocated | 1995-04-14 | c3d03da3f053… |
| 205.228.0.0 – 205.231.255.255 | 262,144 | US |
allocated | 1995-04-14 | e220ed812a4c… |
| 205.232.0.0 – 205.232.255.255 | 65,536 | US |
allocated | 1995-04-14 | 6c065d5b54b8… |
| 205.166.204.0 – 205.166.204.255 | 256 | US |
allocated | 1995-04-13 | 981d75d0be57… |