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
1,645,647,872
📦
IPv4 networks
76,740
delegated blocks
🧭
IPv6 networks
11,370
delegated blocks
🔗
Autonomous systems
34,065
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 209.157.0.0 – 209.157.255.255 | 65,536 |  US |
allocated | 2000-11-15 | 9f14454567a6… |
| 66.44.0.0 – 66.44.127.255 | 32,768 | US |
allocated | 2000-11-14 | d497a9a99490… |
| 208.39.192.0 – 208.39.255.255 | 16,384 | US |
allocated | 2000-11-14 | 34d342be0361… |
| 66.43.64.0 – 66.43.79.255 | 4,096 | US |
allocated | 2000-11-13 | b4bdedf91b3e… |
| 66.43.80.0 – 66.43.87.255 | 2,048 | US |
allocated | 2000-11-13 | b4bdedf91b3e… |
| 66.43.88.0 – 66.43.91.255 | 1,024 | US |
allocated | 2000-11-13 | b4bdedf91b3e… |
| 66.43.92.0 – 66.43.92.255 | 256 | US |
allocated | 2000-11-13 | 1481ecc87fd7… |
| 66.43.95.0 – 66.43.95.255 | 256 | US |
allocated | 2000-11-13 | b4bdedf91b3e… |
| 66.43.96.0 – 66.43.97.255 | 512 | US |
allocated | 2000-11-13 | 1481ecc87fd7… |
| 66.43.98.0 – 66.43.98.255 | 256 | US |
allocated | 2000-11-13 | 1481ecc87fd7… |
| 66.43.99.0 – 66.43.99.255 | 256 | US |
allocated | 2000-11-13 | b4bdedf91b3e… |
| 66.43.100.0 – 66.43.100.255 | 256 | US |
allocated | 2000-11-13 | b4bdedf91b3e… |
| 66.43.101.0 – 66.43.101.255 | 256 | US |
allocated | 2000-11-13 | 1481ecc87fd7… |
| 66.43.102.0 – 66.43.103.255 | 512 | US |
allocated | 2000-11-13 | b4bdedf91b3e… |
| 66.43.104.0 – 66.43.104.255 | 256 | US |
allocated | 2000-11-13 | b4bdedf91b3e… |
| 66.43.105.0 – 66.43.105.255 | 256 | US |
allocated | 2000-11-13 | 1481ecc87fd7… |
| 66.43.106.0 – 66.43.106.255 | 256 | US |
allocated | 2000-11-13 | 1481ecc87fd7… |
| 66.43.107.0 – 66.43.107.255 | 256 | US |
allocated | 2000-11-13 | b4bdedf91b3e… |
| 66.43.108.0 – 66.43.108.255 | 256 | US |
allocated | 2000-11-13 | 1481ecc87fd7… |
| 66.43.109.0 – 66.43.109.255 | 256 | US |
allocated | 2000-11-13 | b4bdedf91b3e… |
| 66.43.110.0 – 66.43.110.255 | 256 | US |
allocated | 2000-11-13 | 1481ecc87fd7… |
| 66.43.111.0 – 66.43.111.255 | 256 | US |
allocated | 2000-11-13 | b4bdedf91b3e… |
| 66.43.112.0 – 66.43.119.255 | 2,048 | US |
allocated | 2000-11-13 | 1481ecc87fd7… |
| 66.43.120.0 – 66.43.127.255 | 2,048 | US |
allocated | 2000-11-13 | b4bdedf91b3e… |
| 208.39.128.0 – 208.39.191.255 | 16,384 | US |
allocated | 2000-11-13 | 3a7b40ab58f6… |
| 66.38.128.0 – 66.38.143.255 | 4,096 |  CA |
allocated | 2000-11-10 | 7de51f8320f6… |
| 66.38.144.0 – 66.38.144.255 | 256 | US |
allocated | 2000-11-10 | fca460f9d966… |
| 66.38.145.0 – 66.38.145.255 | 256 | CA |
allocated | 2000-11-10 | 7de51f8320f6… |
| 66.38.146.0 – 66.38.146.255 | 256 | US |
allocated | 2000-11-10 | fca460f9d966… |
| 66.38.147.0 – 66.38.147.255 | 256 | CA |
allocated | 2000-11-10 | 7de51f8320f6… |
| 66.38.148.0 – 66.38.151.255 | 1,024 | CA |
allocated | 2000-11-10 | 7de51f8320f6… |
| 66.38.152.0 – 66.38.159.255 | 2,048 | CA |
allocated | 2000-11-10 | 7de51f8320f6… |
| 66.38.160.0 – 66.38.191.255 | 8,192 | CA |
allocated | 2000-11-10 | 7de51f8320f6… |
| 66.38.192.0 – 66.38.255.255 | 16,384 | CA |
allocated | 2000-11-10 | 7de51f8320f6… |
| 216.155.224.0 – 216.155.239.255 | 4,096 |  SE |
allocated | 2000-11-10 | b8ec712dc0a7… |
| 216.219.64.0 – 216.219.79.255 | 4,096 | US |
allocated | 2000-11-10 | cdb7d42057bd… |
| 216.219.96.0 – 216.219.111.255 | 4,096 | US |
allocated | 2000-11-10 | cdb7d42057bd… |
| 24.219.0.0 – 24.219.255.255 | 65,536 | US |
allocated | 2000-11-07 | 4f110d9bcc28… |
| 66.41.0.0 – 66.41.255.255 | 65,536 | US |
allocated | 2000-11-07 | 3a7b40ab58f6… |
| 216.155.192.0 – 216.155.207.255 | 4,096 | US |
allocated | 2000-11-07 | c2dfb9e7c865… |
| 24.153.0.0 – 24.153.31.255 | 8,192 | CA |
allocated | 2000-11-06 | df8a77919027… |
| 216.155.160.0 – 216.155.175.255 | 4,096 | US |
allocated | 2000-11-06 | c4fef8e680d3… |
| 209.43.128.0 – 209.43.255.255 | 32,768 | US |
allocated | 2000-11-02 | 9f14454567a6… |
| 209.168.0.0 – 209.168.127.255 | 32,768 | US |
allocated | 2000-11-02 | 9f14454567a6… |
| 216.155.96.0 – 216.155.127.255 | 8,192 | US |
allocated | 2000-11-02 | 21791a899298… |
| 66.40.0.0 – 66.40.63.255 | 16,384 | CA |
allocated | 2000-10-31 | 3c781914ab27… |
| 66.40.64.0 – 66.40.95.255 | 8,192 | CA |
allocated | 2000-10-31 | 3c781914ab27… |
| 66.40.96.0 – 66.40.103.255 | 2,048 | CA |
allocated | 2000-10-31 | 3c781914ab27… |
| 66.40.104.0 – 66.40.107.255 | 1,024 | CA |
allocated | 2000-10-31 | 3c781914ab27… |
| 66.40.128.0 – 66.40.159.255 | 8,192 | CA |
allocated | 2000-10-31 | 3c781914ab27… |
| 66.40.160.0 – 66.40.175.255 | 4,096 | CA |
allocated | 2000-10-31 | 3c781914ab27… |
| 66.40.192.0 – 66.40.255.255 | 16,384 | CA |
allocated | 2000-10-31 | 3c781914ab27… |
| 216.98.16.0 – 216.98.31.255 | 4,096 | US |
allocated | 2000-10-31 | 2c8b166870cf… |
| 216.138.192.0 – 216.138.193.255 | 512 | CA |
allocated | 2000-10-31 | ca299e016615… |
| 216.138.194.0 – 216.138.195.255 | 512 | CA |
allocated | 2000-10-31 | 58099ebcb100… |
| 216.138.196.0 – 216.138.199.255 | 1,024 | CA |
allocated | 2000-10-31 | ca299e016615… |
| 216.138.200.0 – 216.138.207.255 | 2,048 | CA |
allocated | 2000-10-31 | ca299e016615… |
| 216.138.208.0 – 216.138.215.255 | 2,048 | CA |
allocated | 2000-10-31 | ca299e016615… |
| 216.138.216.0 – 216.138.217.255 | 512 | CA |
allocated | 2000-10-31 | 58099ebcb100… |
| 216.138.218.0 – 216.138.219.255 | 512 | CA |
allocated | 2000-10-31 | ca299e016615… |
| 216.138.220.0 – 216.138.221.255 | 512 | CA |
allocated | 2000-10-31 | 58099ebcb100… |
| 216.138.222.0 – 216.138.223.255 | 512 | CA |
allocated | 2000-10-31 | ca299e016615… |
| 216.138.224.0 – 216.138.227.255 | 1,024 | CA |
allocated | 2000-10-31 | ca299e016615… |
| 216.138.228.0 – 216.138.228.255 | 256 | CA |
allocated | 2000-10-31 | ca299e016615… |
| 216.138.229.0 – 216.138.229.255 | 256 | CA |
allocated | 2000-10-31 | 58099ebcb100… |
| 216.138.230.0 – 216.138.231.255 | 512 | CA |
allocated | 2000-10-31 | 58099ebcb100… |
| 216.138.232.0 – 216.138.233.255 | 512 | CA |
allocated | 2000-10-31 | 58099ebcb100… |
| 216.138.234.0 – 216.138.235.255 | 512 | CA |
allocated | 2000-10-31 | ca299e016615… |
| 216.138.236.0 – 216.138.239.255 | 1,024 | CA |
allocated | 2000-10-31 | ca299e016615… |
| 216.138.240.0 – 216.138.255.255 | 4,096 | CA |
allocated | 2000-10-31 | ca299e016615… |
| 66.37.192.0 – 66.37.223.255 | 8,192 | US |
allocated | 2000-10-30 | cdb7d42057bd… |
| 66.37.224.0 – 66.37.255.255 | 8,192 | US |
allocated | 2000-10-30 | 4cad11d18482… |
| 65.192.0.0 – 65.223.255.255 | 2,097,152 | US |
allocated | 2000-10-27 | e220ed812a4c… |
| 66.39.0.0 – 66.39.127.255 | 32,768 | US |
allocated | 2000-10-27 | 553baa5a5ca7… |
| 66.39.128.0 – 66.39.159.255 | 8,192 | US |
allocated | 2000-10-27 | 553baa5a5ca7… |
| 216.16.224.0 – 216.16.255.255 | 8,192 | CA |
allocated | 2000-10-27 | 0042cdeb1e05… |
| 216.138.128.0 – 216.138.191.255 | 16,384 | US |
allocated | 2000-10-27 | 6c065d5b54b8… |
| 206.176.160.0 – 206.176.191.255 | 8,192 | US |
allocated | 2000-10-26 | b8fedc590b14… |
| 216.138.64.0 – 216.138.127.255 | 16,384 | US |
allocated | 2000-10-26 | 614346bde8f8… |
| 66.35.192.0 – 66.35.255.255 | 16,384 | US |
allocated | 2000-10-25 | cdb7d42057bd… |
| 66.37.160.0 – 66.37.191.255 | 8,192 | US |
allocated | 2000-10-25 | d2fc8fbc818f… |
| 66.35.128.0 – 66.35.191.255 | 16,384 | US |
allocated | 2000-10-24 | 6c065d5b54b8… |
| 66.37.64.0 – 66.37.95.255 | 8,192 | US |
allocated | 2000-10-24 | aba0c2798e47… |
| 66.37.128.0 – 66.37.159.255 | 8,192 | US |
allocated | 2000-10-24 | 81f49939d218… |
| 66.38.0.0 – 66.38.127.255 | 32,768 | US |
allocated | 2000-10-24 | 1b3e1ee9bff8… |
| 66.33.128.0 – 66.33.191.255 | 16,384 | US |
allocated | 2000-10-23 | 278d3043dbec… |
| 66.36.16.0 – 66.36.31.255 | 4,096 | US |
allocated | 2000-10-20 | 6e048190eb9a… |
| 66.37.0.0 – 66.37.31.255 | 8,192 | US |
allocated | 2000-10-20 | 84b1251f3230… |
| 207.188.32.0 – 207.188.63.255 | 8,192 | US |
allocated | 2000-10-18 | ebfe67afa5c6… |
| 216.16.192.0 – 216.16.207.255 | 4,096 | US |
allocated | 2000-10-18 | b8820af9d1df… |
| 216.109.240.0 – 216.109.255.255 | 4,096 | US |
allocated | 2000-10-18 | 60377bc1f34a… |
| 216.82.64.0 – 216.82.127.255 | 16,384 | US |
allocated | 2000-10-17 | 1cb21afb6f24… |
| 216.126.96.0 – 216.126.127.255 | 8,192 | CA |
allocated | 2000-10-16 | 8c6e4cd4a338… |
| 216.166.192.0 – 216.166.255.255 | 16,384 | US |
allocated | 2000-10-16 | cdb7d42057bd… |
| 66.32.0.0 – 66.32.255.255 | 65,536 | US |
allocated | 2000-10-13 | 6c065d5b54b8… |
| 66.33.7.0 – 66.33.7.255 | 256 | CA |
allocated | 2000-10-13 | 3c781914ab27… |
| 66.33.20.0 – 66.33.20.255 | 256 | CA |
allocated | 2000-10-13 | 3c781914ab27… |
| 66.33.32.0 – 66.33.32.255 | 256 | CA |
allocated | 2000-10-13 | 3c781914ab27… |
| 66.33.36.0 – 66.33.36.255 | 256 | CA |
allocated | 2000-10-13 | 3c781914ab27… |
| 66.33.56.0 – 66.33.56.255 | 256 | CA |
allocated | 2000-10-13 | 3c781914ab27… |