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 |
|---|---|---|---|---|---|
| 204.87.184.0 – 204.87.184.255 | 256 |  US |
allocated | 1995-01-24 | 2af78aab3af6… |
| 204.126.150.0 – 204.126.151.255 | 512 | US |
allocated | 1995-01-24 | 0722fe8c4661… |
| 204.145.239.0 – 204.145.239.255 | 256 | US |
allocated | 1995-01-24 | e7adb3d5181d… |
| 204.145.240.0 – 204.145.240.255 | 256 | US |
allocated | 1995-01-24 | 7013aaedb478… |
| 204.145.242.0 – 204.145.242.255 | 256 | US |
allocated | 1995-01-24 | 9a75b407c97c… |
| 204.145.243.0 – 204.145.243.255 | 256 | US |
allocated | 1995-01-24 | 9a75b407c97c… |
| 204.145.246.0 – 204.145.247.255 | 512 | US |
allocated | 1995-01-24 | 93f0dd84dd12… |
| 204.145.248.0 – 204.145.249.255 | 512 | US |
allocated | 1995-01-24 | 93f0dd84dd12… |
| 204.227.224.0 – 204.227.255.255 | 8,192 | US |
allocated | 1995-01-24 | ddc3fb3d8937… |
| 149.31.0.0 – 149.31.255.255 | 65,536 | US |
allocated | 1995-01-23 | 446e06b3fdd8… |
| 149.105.0.0 – 149.105.255.255 | 65,536 | US |
allocated | 1995-01-23 | a287fc521c45… |
| 166.97.0.0 – 166.97.255.255 | 65,536 | US |
allocated | 1995-01-23 | 322913747ed2… |
| 192.251.33.0 – 192.251.33.255 | 256 | US |
allocated | 1995-01-23 | 25ca7162c72c… |
| 204.145.228.0 – 204.145.228.255 | 256 | US |
allocated | 1995-01-23 | ed964c7d9b11… |
| 204.145.229.0 – 204.145.229.255 | 256 |  CA |
allocated | 1995-01-23 | e6e88c608301… |
| 204.145.230.0 – 204.145.230.255 | 256 | US |
allocated | 1995-01-23 | fb337b2249ba… |
| 204.145.231.0 – 204.145.231.255 | 256 | US |
allocated | 1995-01-23 | fbac54fbb86e… |
| 204.145.232.0 – 204.145.232.255 | 256 | US |
allocated | 1995-01-23 | 9dfcbd553209… |
| 204.145.233.0 – 204.145.233.255 | 256 | US |
allocated | 1995-01-23 | b088e4782c0f… |
| 204.145.235.0 – 204.145.235.255 | 256 | US |
allocated | 1995-01-23 | c7797b19f1dc… |
| 204.145.236.0 – 204.145.236.255 | 256 | US |
allocated | 1995-01-23 | c4ffbdfdb6c2… |
| 204.145.237.0 – 204.145.237.255 | 256 | US |
allocated | 1995-01-23 | a091b6102abe… |
| 204.145.238.0 – 204.145.238.255 | 256 | US |
allocated | 1995-01-23 | a267000fdc79… |
| 204.227.160.0 – 204.227.191.255 | 8,192 | US |
allocated | 1995-01-23 | 9f14454567a6… |
| 192.34.70.0 – 192.34.70.255 | 256 | CA |
allocated | 1995-01-20 | cfaefc29b8bd… |
| 204.145.119.0 – 204.145.119.255 | 256 | US |
allocated | 1995-01-20 | d32bc1b55f8e… |
| 204.145.205.0 – 204.145.205.255 | 256 | US |
allocated | 1995-01-20 | ff6ac5f645ba… |
| 204.145.206.0 – 204.145.206.255 | 256 | US |
allocated | 1995-01-20 | 9a6fbe337e66… |
| 204.145.207.0 – 204.145.207.255 | 256 | US |
allocated | 1995-01-20 | da8caee48fbe… |
| 204.145.208.0 – 204.145.208.255 | 256 | US |
allocated | 1995-01-20 | 9ec269ccdd56… |
| 204.145.209.0 – 204.145.209.255 | 256 | US |
allocated | 1995-01-20 | 9e62a075a954… |
| 204.145.211.0 – 204.145.211.255 | 256 | US |
allocated | 1995-01-20 | 0a2ac46f6084… |
| 204.145.212.0 – 204.145.212.255 | 256 | US |
allocated | 1995-01-20 | 5c8d094f1e3a… |
| 204.145.213.0 – 204.145.213.255 | 256 | US |
allocated | 1995-01-20 | dc5bbc7f7dd0… |
| 204.145.214.0 – 204.145.214.255 | 256 | US |
allocated | 1995-01-20 | b8250d960802… |
| 204.145.215.0 – 204.145.215.255 | 256 | US |
allocated | 1995-01-20 | ca2e412fb7a7… |
| 204.145.216.0 – 204.145.216.255 | 256 | US |
allocated | 1995-01-20 | 4b66c2f8520e… |
| 204.145.217.0 – 204.145.217.255 | 256 | US |
allocated | 1995-01-20 | 46acd120edcf… |
| 204.145.218.0 – 204.145.218.255 | 256 | US |
allocated | 1995-01-20 | bae608539371… |
| 204.145.220.0 – 204.145.220.255 | 256 | US |
allocated | 1995-01-20 | ef8ef728f02a… |
| 204.145.221.0 – 204.145.221.255 | 256 | US |
allocated | 1995-01-20 | 0cbfb126f114… |
| 204.145.222.0 – 204.145.222.255 | 256 | US |
allocated | 1995-01-20 | 82580a81e7ad… |
| 204.145.223.0 – 204.145.223.255 | 256 | US |
allocated | 1995-01-20 | 1f5dde817633… |
| 204.145.224.0 – 204.145.224.255 | 256 | US |
allocated | 1995-01-20 | 38cd5fa9d4f4… |
| 204.145.225.0 – 204.145.225.255 | 256 | US |
allocated | 1995-01-20 | 8053efa59b4d… |
| 204.145.227.0 – 204.145.227.255 | 256 | US |
allocated | 1995-01-20 | c3fcfb71d673… |
| 204.152.84.0 – 204.152.87.255 | 1,024 | US |
allocated | 1995-01-20 | 9af8c86ed5f7… |
| 204.152.88.0 – 204.152.89.255 | 512 | US |
allocated | 1995-01-20 | 9af8c86ed5f7… |
| 204.152.96.0 – 204.152.96.255 | 256 | US |
allocated | 1995-01-20 | b81d2482d4b7… |
| 204.152.100.0 – 204.152.103.255 | 1,024 | US |
allocated | 1995-01-20 | 89999daaa161… |
| 204.152.104.0 – 204.152.104.255 | 256 | US |
allocated | 1995-01-20 | 89999daaa161… |
| 204.153.212.0 – 204.153.213.255 | 512 | US |
allocated | 1995-01-20 | 4e4147677985… |
| 204.153.214.0 – 204.153.214.255 | 256 | US |
allocated | 1995-01-20 | 4e4147677985… |
| 204.153.216.0 – 204.153.217.255 | 512 | US |
allocated | 1995-01-20 | f01528d7040a… |
| 204.153.218.0 – 204.153.218.255 | 256 | US |
allocated | 1995-01-20 | f01528d7040a… |
| 204.194.224.0 – 204.194.231.255 | 2,048 | US |
allocated | 1995-01-20 | 2fc72c3bfb52… |
| 204.227.96.0 – 204.227.127.255 | 8,192 | US |
allocated | 1995-01-20 | 2fc72c3bfb52… |
| 204.233.0.0 – 204.233.255.255 | 65,536 | US |
allocated | 1995-01-20 | 9f14454567a6… |
| 204.234.0.0 – 204.234.255.255 | 65,536 | US |
allocated | 1995-01-20 | a53917198362… |
| 204.235.0.0 – 204.235.15.255 | 4,096 | US |
allocated | 1995-01-20 | 2a53dc9a2632… |
| 204.235.16.0 – 204.235.31.255 | 4,096 | US |
allocated | 1995-01-20 | 723e46008c51… |
| 204.235.48.0 – 204.235.55.255 | 2,048 | US |
allocated | 1995-01-20 | 1643408c8e67… |
| 204.235.56.0 – 204.235.59.255 | 1,024 | US |
allocated | 1995-01-20 | 1643408c8e67… |
| 204.235.64.0 – 204.235.79.255 | 4,096 | US |
allocated | 1995-01-20 | 45fe880b68a8… |
| 204.235.80.0 – 204.235.95.255 | 4,096 | US |
allocated | 1995-01-20 | 278d3043dbec… |
| 199.253.128.0 – 199.253.135.255 | 2,048 | US |
allocated | 1995-01-19 | 67a7110b02b7… |
| 204.76.238.0 – 204.76.239.255 | 512 | US |
allocated | 1995-01-19 | 06b9f44a513c… |
| 204.76.240.0 – 204.76.243.255 | 1,024 | US |
allocated | 1995-01-19 | 06b9f44a513c… |
| 204.76.244.0 – 204.76.245.255 | 512 | US |
allocated | 1995-01-19 | 06b9f44a513c… |
| 204.76.246.0 – 204.76.247.255 | 512 | US |
allocated | 1995-01-19 | a81ab27ead8b… |
| 204.76.248.0 – 204.76.251.255 | 1,024 | US |
allocated | 1995-01-19 | a81ab27ead8b… |
| 204.76.252.0 – 204.76.253.255 | 512 | US |
allocated | 1995-01-19 | a81ab27ead8b… |
| 204.80.161.0 – 204.80.161.255 | 256 | US |
allocated | 1995-01-19 | 71a67f14563e… |
| 204.80.162.0 – 204.80.162.255 | 256 | US |
allocated | 1995-01-19 | a770680ef881… |
| 204.145.202.0 – 204.145.202.255 | 256 | US |
allocated | 1995-01-19 | 55d3274e336a… |
| 204.145.203.0 – 204.145.203.255 | 256 | US |
allocated | 1995-01-19 | 5db3ff6345d9… |
| 204.145.204.0 – 204.145.204.255 | 256 | US |
allocated | 1995-01-19 | 965e9ca560aa… |
| 204.76.230.0 – 204.76.231.255 | 512 | US |
allocated | 1995-01-18 | 8a7b91679c76… |
| 204.76.232.0 – 204.76.235.255 | 1,024 | US |
allocated | 1995-01-18 | 8a7b91679c76… |
| 204.76.236.0 – 204.76.237.255 | 512 | US |
allocated | 1995-01-18 | 8a7b91679c76… |
| 204.145.164.0 – 204.145.164.255 | 256 | US |
allocated | 1995-01-18 | a25aac589968… |
| 204.145.181.0 – 204.145.181.255 | 256 | US |
allocated | 1995-01-18 | 86179997ec43… |
| 204.145.182.0 – 204.145.182.255 | 256 | US |
allocated | 1995-01-18 | 42bf3a90e99f… |
| 204.145.183.0 – 204.145.183.255 | 256 | US |
allocated | 1995-01-18 | 2c9f658de8ed… |
| 204.145.184.0 – 204.145.184.255 | 256 | US |
allocated | 1995-01-18 | eb3beae6fd85… |
| 204.145.185.0 – 204.145.185.255 | 256 | US |
allocated | 1995-01-18 | bb60a15e6e52… |
| 204.145.186.0 – 204.145.186.255 | 256 | US |
allocated | 1995-01-18 | aed5a460ba2e… |
| 204.145.187.0 – 204.145.187.255 | 256 | US |
allocated | 1995-01-18 | 5bbc7fb76a23… |
| 204.145.188.0 – 204.145.188.255 | 256 | US |
allocated | 1995-01-18 | e1e5e22b5494… |
| 204.145.189.0 – 204.145.189.255 | 256 | US |
allocated | 1995-01-18 | 0e63cdb5f5ad… |
| 204.145.190.0 – 204.145.190.255 | 256 | US |
allocated | 1995-01-18 | 0e63cdb5f5ad… |
| 204.145.191.0 – 204.145.191.255 | 256 | US |
allocated | 1995-01-18 | f0300e3f9865… |
| 204.145.192.0 – 204.145.192.255 | 256 | US |
allocated | 1995-01-18 | f0300e3f9865… |
| 204.145.193.0 – 204.145.193.255 | 256 | US |
allocated | 1995-01-18 | 9fcbb61f0249… |
| 204.145.194.0 – 204.145.194.255 | 256 | US |
allocated | 1995-01-18 | 9fcbb61f0249… |
| 204.145.195.0 – 204.145.195.255 | 256 | US |
allocated | 1995-01-18 | 18d7df3acc5d… |
| 204.145.196.0 – 204.145.196.255 | 256 | US |
allocated | 1995-01-18 | a0bd2e03d9a7… |
| 204.145.199.0 – 204.145.199.255 | 256 | US |
allocated | 1995-01-18 | a7e17a464fec… |
| 204.145.200.0 – 204.145.200.255 | 256 | US |
allocated | 1995-01-18 | 7ce5badf4545… |
| 196.1.141.0 – 196.1.141.255 | 256 |  PR |
allocated | 1995-01-17 | d8a3cb5dee4b… |