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
1,645,666,816
📦
IPv4 networks
76,690
delegated blocks
🧭
IPv6 networks
11,349
delegated blocks
🔗
Autonomous systems
34,029
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 204.140.32.0 – 204.140.63.255 | 8,192 |  US |
allocated | 1994-09-02 | d7c40d04f568… |
| 168.236.0.0 – 168.236.255.255 | 65,536 | US |
allocated | 1994-09-01 | d9ff24550b16… |
| 204.75.150.0 – 204.75.150.255 | 256 | US |
allocated | 1994-09-01 | cecfd18d3013… |
| 204.75.153.0 – 204.75.153.255 | 256 | US |
allocated | 1994-09-01 | 882c7daa1bd2… |
| 204.75.156.0 – 204.75.156.255 | 256 | US |
allocated | 1994-09-01 | 2e522abc15f6… |
| 204.75.159.0 – 204.75.159.255 | 256 | US |
allocated | 1994-09-01 | a975645edc6f… |
| 204.75.160.0 – 204.75.160.255 | 256 | US |
allocated | 1994-09-01 | a114699d126e… |
| 204.139.0.0 – 204.139.7.255 | 2,048 | US |
allocated | 1994-09-01 | 9b11c494ef3e… |
| 204.139.8.0 – 204.139.15.255 | 2,048 | US |
allocated | 1994-09-01 | a7f7463af3d3… |
| 204.139.16.0 – 204.139.31.255 | 4,096 | US |
allocated | 1994-09-01 | 4f8f161f2dce… |
| 168.235.0.0 – 168.235.63.255 | 16,384 | US |
allocated | 1994-08-31 | 12b205ad0bd4… |
| 204.75.146.0 – 204.75.146.255 | 256 | US |
allocated | 1994-08-31 | 9f14454567a6… |
| 204.75.147.0 – 204.75.147.255 | 256 | US |
allocated | 1994-08-31 | c10943f7c494… |
| 204.75.148.0 – 204.75.149.255 | 512 | US |
allocated | 1994-08-31 | c10943f7c494… |
| 204.128.8.0 – 204.128.15.255 | 2,048 | US |
allocated | 1994-08-31 | 22e1ae00c246… |
| 204.137.0.0 – 204.137.7.255 | 2,048 | US |
allocated | 1994-08-31 | 21a2c1106771… |
| 204.137.32.0 – 204.137.63.255 | 8,192 | US |
allocated | 1994-08-31 | 41f4d6c9722e… |
| 204.139.32.0 – 204.139.47.255 | 4,096 | US |
allocated | 1994-08-31 | 0fc2e3a3825e… |
| 204.139.48.0 – 204.139.51.255 | 1,024 | US |
allocated | 1994-08-31 | 0fc2e3a3825e… |
| 166.99.0.0 – 166.99.255.255 | 65,536 | US |
allocated | 1994-08-30 | 2394679019c7… |
| 199.175.105.0 – 199.175.105.255 | 256 |  CA |
allocated | 1994-08-30 | 4e37788b47b0… |
| 204.75.129.0 – 204.75.129.255 | 256 | US |
allocated | 1994-08-30 | 026d8447363b… |
| 204.75.130.0 – 204.75.131.255 | 512 | US |
allocated | 1994-08-30 | 3bc3267d31e8… |
| 204.75.132.0 – 204.75.132.255 | 256 | US |
allocated | 1994-08-30 | 3bc3267d31e8… |
| 204.75.133.0 – 204.75.133.255 | 256 | US |
allocated | 1994-08-30 | 8a0ee28001f5… |
| 204.75.134.0 – 204.75.134.255 | 256 | US |
allocated | 1994-08-30 | 8a0ee28001f5… |
| 204.75.135.0 – 204.75.135.255 | 256 | US |
allocated | 1994-08-30 | 39c375825945… |
| 204.75.136.0 – 204.75.136.255 | 256 | US |
allocated | 1994-08-30 | d9b66ccba967… |
| 204.75.137.0 – 204.75.137.255 | 256 | US |
allocated | 1994-08-30 | 99f291894510… |
| 204.75.138.0 – 204.75.139.255 | 512 | US |
allocated | 1994-08-30 | 3eb7e64b1c34… |
| 204.75.141.0 – 204.75.141.255 | 256 | US |
allocated | 1994-08-30 | 1b45e7cbcd1e… |
| 204.107.117.0 – 204.107.117.255 | 256 | US |
allocated | 1994-08-30 | a1805ff721bd… |
| 204.107.118.0 – 204.107.118.255 | 256 | US |
allocated | 1994-08-30 | f049e98124fd… |
| 204.107.119.0 – 204.107.119.255 | 256 | US |
allocated | 1994-08-30 | 94b455da12e3… |
| 204.107.120.0 – 204.107.120.255 | 256 | US |
allocated | 1994-08-30 | 96fd592f5445… |
| 204.107.121.0 – 204.107.121.255 | 256 | US |
allocated | 1994-08-30 | 0abeaacbbb6b… |
| 204.138.1.0 – 204.138.1.255 | 256 | CA |
allocated | 1994-08-30 | e0df55371306… |
| 204.138.2.0 – 204.138.3.255 | 512 | CA |
allocated | 1994-08-30 | e0df55371306… |
| 204.138.4.0 – 204.138.7.255 | 1,024 | CA |
allocated | 1994-08-30 | e0df55371306… |
| 204.138.8.0 – 204.138.15.255 | 2,048 | CA |
allocated | 1994-08-30 | e0df55371306… |
| 204.138.16.0 – 204.138.23.255 | 2,048 | CA |
allocated | 1994-08-30 | e0df55371306… |
| 204.138.24.0 – 204.138.25.255 | 512 | CA |
allocated | 1994-08-30 | e0df55371306… |
| 204.138.27.0 – 204.138.27.255 | 256 |  GB |
allocated | 1994-08-30 | a66d0b3ece29… |
| 204.138.28.0 – 204.138.28.255 | 256 | CA |
allocated | 1994-08-30 | dc7f2908d190… |
| 204.138.29.0 – 204.138.29.255 | 256 | CA |
allocated | 1994-08-30 | 48df5e49fa1e… |
| 204.138.30.0 – 204.138.31.255 | 512 | CA |
allocated | 1994-08-30 | 48df5e49fa1e… |
| 204.138.32.0 – 204.138.32.255 | 256 | CA |
allocated | 1994-08-30 | c6ef6dc9c094… |
| 204.138.33.0 – 204.138.33.255 | 256 | CA |
allocated | 1994-08-30 | c2869978dc8f… |
| 204.138.34.0 – 204.138.34.255 | 256 | CA |
allocated | 1994-08-30 | 58017c74039e… |
| 204.138.35.0 – 204.138.35.255 | 256 | CA |
allocated | 1994-08-30 | d8d72d331958… |
| 204.138.36.0 – 204.138.36.255 | 256 | CA |
allocated | 1994-08-30 | 915c6b48e802… |
| 204.138.37.0 – 204.138.37.255 | 256 | CA |
allocated | 1994-08-30 | 1d0e2de74ca6… |
| 204.138.38.0 – 204.138.38.255 | 256 | CA |
allocated | 1994-08-30 | 4bd67cb6cae3… |
| 204.138.60.0 – 204.138.60.255 | 256 | CA |
allocated | 1994-08-30 | ff8ba1f41a09… |
| 204.138.61.0 – 204.138.61.255 | 256 | CA |
allocated | 1994-08-30 | 3a2436abefc0… |
| 204.138.62.0 – 204.138.62.255 | 256 | CA |
allocated | 1994-08-30 | c24bb4496b78… |
| 204.138.63.0 – 204.138.63.255 | 256 | CA |
allocated | 1994-08-30 | 4866f7634322… |
| 204.138.64.0 – 204.138.64.255 | 256 | CA |
allocated | 1994-08-30 | 0e8a097cfe63… |
| 204.138.65.0 – 204.138.65.255 | 256 | CA |
allocated | 1994-08-30 | 3b4025f19ab0… |
| 204.138.67.0 – 204.138.67.255 | 256 | CA |
allocated | 1994-08-30 | 2c3810d7f1de… |
| 204.138.68.0 – 204.138.68.255 | 256 | US |
allocated | 1994-08-30 | bdb3a6b5567a… |
| 204.138.69.0 – 204.138.69.255 | 256 | CA |
allocated | 1994-08-30 | 6fdf66cf0b5e… |
| 204.138.70.0 – 204.138.70.255 | 256 | CA |
allocated | 1994-08-30 | 2e94709b6387… |
| 204.138.71.0 – 204.138.71.255 | 256 | US |
allocated | 1994-08-30 | 85c2d5c1a770… |
| 204.138.73.0 – 204.138.73.255 | 256 | CA |
allocated | 1994-08-30 | 0f895b16cf16… |
| 204.138.80.0 – 204.138.87.255 | 2,048 | CA |
allocated | 1994-08-30 | 1da6f06fbe3b… |
| 204.138.88.0 – 204.138.89.255 | 512 | CA |
allocated | 1994-08-30 | 968e95845c4f… |
| 204.138.90.0 – 204.138.90.255 | 256 | CA |
allocated | 1994-08-30 | 968e95845c4f… |
| 204.138.91.0 – 204.138.91.255 | 256 | CA |
allocated | 1994-08-30 | 86d05afae771… |
| 204.138.92.0 – 204.138.92.255 | 256 | CA |
allocated | 1994-08-30 | 7b1f3508be35… |
| 204.138.93.0 – 204.138.93.255 | 256 | CA |
allocated | 1994-08-30 | 7196065e6764… |
| 204.138.96.0 – 204.138.96.255 | 256 | CA |
allocated | 1994-08-30 | 0b833318e102… |
| 204.138.97.0 – 204.138.97.255 | 256 | US |
allocated | 1994-08-30 | ab226dc561ca… |
| 204.138.98.0 – 204.138.98.255 | 256 | US |
allocated | 1994-08-30 | ab226dc561ca… |
| 204.138.105.0 – 204.138.105.255 | 256 | CA |
allocated | 1994-08-30 | c5d814b4a661… |
| 204.138.108.0 – 204.138.108.255 | 256 | CA |
allocated | 1994-08-30 | d1d5197415c2… |
| 204.138.110.0 – 204.138.110.255 | 256 | CA |
allocated | 1994-08-30 | 1ae6b9923fa2… |
| 204.138.111.0 – 204.138.111.255 | 256 | CA |
allocated | 1994-08-30 | c194de2d3f54… |
| 204.138.113.0 – 204.138.113.255 | 256 | CA |
allocated | 1994-08-30 | 100c616edfd0… |
| 204.138.115.0 – 204.138.115.255 | 256 | CA |
allocated | 1994-08-30 | a2eba22c6c42… |
| 204.138.116.0 – 204.138.116.255 | 256 | CA |
allocated | 1994-08-30 | 3b7ebb6febbf… |
| 204.138.122.0 – 204.138.123.255 | 512 | CA |
allocated | 1994-08-30 | 9b0297fb4ad8… |
| 204.138.124.0 – 204.138.127.255 | 1,024 | CA |
allocated | 1994-08-30 | 9b0297fb4ad8… |
| 204.138.128.0 – 204.138.135.255 | 2,048 | CA |
allocated | 1994-08-30 | 38b9eb47127a… |
| 204.138.138.0 – 204.138.139.255 | 512 | CA |
allocated | 1994-08-30 | 8f6f606b249e… |
| 204.138.140.0 – 204.138.140.255 | 256 | CA |
allocated | 1994-08-30 | 8f6f606b249e… |
| 204.138.141.0 – 204.138.141.255 | 256 | CA |
allocated | 1994-08-30 | f522a5c87d1a… |
| 204.138.142.0 – 204.138.142.255 | 256 | CA |
allocated | 1994-08-30 | 723b93f09ddf… |
| 204.138.143.0 – 204.138.143.255 | 256 | CA |
allocated | 1994-08-30 | 4c7569fd015e… |
| 204.138.144.0 – 204.138.144.255 | 256 | CA |
allocated | 1994-08-30 | 3dd932e85d88… |
| 204.138.151.0 – 204.138.151.255 | 256 | CA |
allocated | 1994-08-30 | 0338aca9eeba… |
| 204.138.153.0 – 204.138.153.255 | 256 | CA |
allocated | 1994-08-30 | 2bc0c706e876… |
| 204.138.154.0 – 204.138.155.255 | 512 | CA |
allocated | 1994-08-30 | 2bc0c706e876… |
| 204.138.156.0 – 204.138.156.255 | 256 | CA |
allocated | 1994-08-30 | 3854e53cf49f… |
| 204.138.157.0 – 204.138.157.255 | 256 | CA |
allocated | 1994-08-30 | cf84401dfcee… |
| 204.138.158.0 – 204.138.158.255 | 256 | CA |
allocated | 1994-08-30 | dae2e5bafdd4… |
| 204.138.159.0 – 204.138.159.255 | 256 | CA |
allocated | 1994-08-30 | 3ee4aa8955e9… |
| 204.138.160.0 – 204.138.163.255 | 1,024 | CA |
allocated | 1994-08-30 | 3ee4aa8955e9… |
| 204.138.164.0 – 204.138.164.255 | 256 | CA |
allocated | 1994-08-30 | cf7c8aa6a1ce… |
| 204.138.165.0 – 204.138.165.255 | 256 | CA |
allocated | 1994-08-30 | 069ab697650e… |