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
1.64B
1,644,546,048
📦
IPv4 networks
77,308
delegated blocks
🧭
IPv6 networks
11,579
delegated blocks
🔗
Autonomous systems
34,293
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 192.65.77.0 – 192.65.77.255 | 256 |  US |
allocated | 1989-11-07 | 8fd6f35a8a48… |
| 192.65.78.0 – 192.65.78.255 | 256 | US |
allocated | 1989-11-07 | 8fd6f35a8a48… |
| 137.69.0.0 – 137.69.255.255 | 65,536 | US |
allocated | 1989-11-06 | 4cb61b484442… |
| 137.70.0.0 – 137.70.255.255 | 65,536 | US |
allocated | 1989-11-06 | eda92678b5ab… |
| 137.71.0.0 – 137.71.255.255 | 65,536 | US |
allocated | 1989-11-06 | bb847a07262d… |
| 137.72.0.0 – 137.72.255.255 | 65,536 | US |
allocated | 1989-11-06 | b9ea0a7c3235… |
| 192.65.72.0 – 192.65.72.255 | 256 | US |
allocated | 1989-11-06 | d1c2b260916b… |
| 192.65.73.0 – 192.65.73.255 | 256 | US |
allocated | 1989-11-06 | 4a34b9f7ce6e… |
| 192.65.74.0 – 192.65.74.255 | 256 | US |
allocated | 1989-11-06 | 4a34b9f7ce6e… |
| 192.65.75.0 – 192.65.75.255 | 256 | US |
allocated | 1989-11-06 | 7bd442ab6be5… |
| 192.65.76.0 – 192.65.76.255 | 256 | US |
allocated | 1989-11-06 | 79577141a075… |
| 137.67.0.0 – 137.67.255.255 | 65,536 | US |
allocated | 1989-11-03 | 45fe880b68a8… |
| 192.65.71.0 – 192.65.71.255 | 256 | US |
allocated | 1989-11-03 | 68d66fac32e3… |
| 128.23.0.0 – 128.23.255.255 | 65,536 | US |
allocated | 1989-11-02 | 3d3d4a4562fd… |
| 137.46.0.0 – 137.46.255.255 | 65,536 | US |
allocated | 1989-11-02 | 1e8f556759f4… |
| 137.53.0.0 – 137.53.255.255 | 65,536 | US |
allocated | 1989-11-02 | 605fc4bffa07… |
| 132.54.0.0 – 132.54.255.255 | 65,536 | US |
allocated | 1989-11-01 | 45fe880b68a8… |
| 132.55.0.0 – 132.55.255.255 | 65,536 | US |
allocated | 1989-11-01 | 45fe880b68a8… |
| 132.57.0.0 – 132.57.255.255 | 65,536 | US |
allocated | 1989-11-01 | 45fe880b68a8… |
| 132.58.0.0 – 132.58.255.255 | 65,536 | US |
allocated | 1989-11-01 | 45fe880b68a8… |
| 137.0.0.0 – 137.0.255.255 | 65,536 | US |
allocated | 1989-11-01 | 45fe880b68a8… |
| 137.1.0.0 – 137.1.255.255 | 65,536 | US |
allocated | 1989-11-01 | 45fe880b68a8… |
| 137.2.0.0 – 137.2.255.255 | 65,536 | US |
allocated | 1989-11-01 | 45fe880b68a8… |
| 137.3.0.0 – 137.3.255.255 | 65,536 | US |
allocated | 1989-11-01 | 45fe880b68a8… |
| 137.48.0.0 – 137.48.255.255 | 65,536 | US |
allocated | 1989-11-01 | 08db3fcc7f4f… |
| 137.49.0.0 – 137.49.127.255 | 32,768 | US |
allocated | 1989-11-01 | ac64cc73911a… |
| 137.49.128.0 – 137.49.191.255 | 16,384 | US |
allocated | 1989-11-01 | ac64cc73911a… |
| 137.49.192.0 – 137.49.223.255 | 8,192 | US |
allocated | 1989-11-01 | ac64cc73911a… |
| 137.52.0.0 – 137.52.255.255 | 65,536 | US |
allocated | 1989-11-01 | 2a4baf4c524b… |
| 137.54.0.0 – 137.54.255.255 | 65,536 | US |
allocated | 1989-11-01 | 8c78747c6d11… |
| 137.65.0.0 – 137.65.255.255 | 65,536 | US |
allocated | 1989-11-01 | b937c22d3156… |
| 192.5.7.0 – 192.5.7.255 | 256 | US |
allocated | 1989-11-01 | cfbd850949d2… |
| 192.5.39.0 – 192.5.39.255 | 256 | US |
allocated | 1989-11-01 | f95fbaca1734… |
| 192.5.40.0 – 192.5.40.255 | 256 | US |
allocated | 1989-11-01 | ff4fb015f8c7… |
| 192.5.72.0 – 192.5.72.255 | 256 | US |
allocated | 1989-11-01 | 4c69daf136f6… |
| 192.5.103.0 – 192.5.103.255 | 256 | US |
allocated | 1989-11-01 | bfedc6143226… |
| 192.5.166.0 – 192.5.166.255 | 256 | US |
allocated | 1989-11-01 | 5ebea2d4c325… |
| 192.12.97.0 – 192.12.97.255 | 256 | US |
allocated | 1989-11-01 | bab9f5385a55… |
| 192.12.173.0 – 192.12.173.255 | 256 | US |
allocated | 1989-11-01 | fc522e552438… |
| 192.65.9.0 – 192.65.9.255 | 256 | US |
allocated | 1989-11-01 | 72e0f2ec7621… |
| 192.65.24.0 – 192.65.27.255 | 1,024 | US |
allocated | 1989-11-01 | 72e0f2ec7621… |
| 192.65.30.0 – 192.65.31.255 | 512 | US |
allocated | 1989-11-01 | 72e0f2ec7621… |
| 192.65.39.0 – 192.65.39.255 | 256 | US |
allocated | 1989-11-01 | 72e0f2ec7621… |
| 192.65.40.0 – 192.65.47.255 | 2,048 | US |
allocated | 1989-11-01 | 72e0f2ec7621… |
| 192.65.48.0 – 192.65.49.255 | 512 | US |
allocated | 1989-11-01 | aee0c5093c28… |
| 137.38.0.0 – 137.38.255.255 | 65,536 | US |
allocated | 1989-10-25 | f21130892698… |
| 137.39.0.0 – 137.39.255.255 | 65,536 | US |
allocated | 1989-10-25 | e220ed812a4c… |
| 137.42.0.0 – 137.42.255.255 | 65,536 | US |
allocated | 1989-10-25 | 01ded2cfbf92… |
| 137.45.0.0 – 137.45.255.255 | 65,536 | US |
allocated | 1989-10-25 | 7a7281e9b52f… |
| 192.58.220.0 – 192.58.220.255 | 256 | US |
allocated | 1989-10-25 | 76144c9351f4… |
| 192.58.221.0 – 192.58.221.255 | 256 | US |
allocated | 1989-10-25 | 0ff513819226… |
| 192.58.222.0 – 192.58.222.255 | 256 | US |
allocated | 1989-10-25 | f715e413c9d1… |
| 192.58.223.0 – 192.58.223.255 | 256 | US |
allocated | 1989-10-25 | 36461df0e4b1… |
| 192.58.224.0 – 192.58.224.255 | 256 | US |
allocated | 1989-10-25 | 36461df0e4b1… |
| 192.58.225.0 – 192.58.225.255 | 256 | US |
allocated | 1989-10-25 | 36461df0e4b1… |
| 192.58.230.0 – 192.58.230.255 | 256 | US |
allocated | 1989-10-25 | 45fe880b68a8… |
| 192.58.231.0 – 192.58.231.255 | 256 | US |
allocated | 1989-10-25 | fc522e552438… |
| 192.58.232.0 – 192.58.233.255 | 512 | US |
allocated | 1989-10-25 | 2fc72c3bfb52… |
| 192.58.234.0 – 192.58.234.255 | 256 | US |
allocated | 1989-10-25 | 2fc72c3bfb52… |
| 192.58.235.0 – 192.58.235.255 | 256 | US |
allocated | 1989-10-25 | 2fc72c3bfb52… |
| 192.58.236.0 – 192.58.239.255 | 1,024 | US |
allocated | 1989-10-25 | 2fc72c3bfb52… |
| 192.58.240.0 – 192.58.241.255 | 512 | US |
allocated | 1989-10-25 | 2fc72c3bfb52… |
| 192.58.242.0 – 192.58.242.255 | 256 | US |
allocated | 1989-10-25 | 3205ece05592… |
| 192.58.243.0 – 192.58.243.255 | 256 | US |
allocated | 1989-10-25 | a3bc0d9e6627… |
| 192.58.244.0 – 192.58.244.255 | 256 | US |
allocated | 1989-10-25 | 2cf6e4f0ad22… |
| 192.58.245.0 – 192.58.245.255 | 256 |  CA |
allocated | 1989-10-25 | 101817e23304… |
| 192.58.246.0 – 192.58.246.255 | 256 | US |
allocated | 1989-10-25 | 6f4a28e9e3f3… |
| 192.58.247.0 – 192.58.247.255 | 256 | US |
allocated | 1989-10-25 | dcdca59678af… |
| 192.58.248.0 – 192.58.248.255 | 256 | US |
allocated | 1989-10-25 | 434bd644bdaf… |
| 192.58.249.0 – 192.58.249.255 | 256 | US |
allocated | 1989-10-25 | 6b5bfe83993f… |
| 192.58.254.0 – 192.58.254.255 | 256 | US |
allocated | 1989-10-24 | e2806a4dbf0e… |
| 137.28.0.0 – 137.28.255.255 | 65,536 | US |
allocated | 1989-10-19 | fb6db070c943… |
| 137.29.0.0 – 137.29.255.255 | 65,536 | US |
allocated | 1989-10-19 | 45fe880b68a8… |
| 192.58.213.0 – 192.58.213.255 | 256 | CA |
allocated | 1989-10-19 | 5582d2c31307… |
| 192.58.212.0 – 192.58.212.255 | 256 | US |
allocated | 1989-10-18 | 45fe880b68a8… |
| 137.30.0.0 – 137.30.255.255 | 65,536 | US |
allocated | 1989-10-17 | 59f822bcaa8e… |
| 137.32.0.0 – 137.32.255.255 | 65,536 | US |
allocated | 1989-10-17 | 0596821a6910… |
| 137.36.0.0 – 137.36.255.255 | 65,536 | US |
allocated | 1989-10-17 | 2b5875965d70… |
| 137.37.0.0 – 137.37.255.255 | 65,536 | US |
allocated | 1989-10-17 | 5b955ced0d94… |
| 192.58.216.0 – 192.58.216.255 | 256 | US |
allocated | 1989-10-17 | e1e4db0c22c3… |
| 192.58.217.0 – 192.58.217.255 | 256 | US |
allocated | 1989-10-17 | f2fd906172be… |
| 131.54.0.0 – 131.54.255.255 | 65,536 | US |
allocated | 1989-10-13 | 45fe880b68a8… |
| 131.55.0.0 – 131.55.255.255 | 65,536 | US |
allocated | 1989-10-13 | 45fe880b68a8… |
| 131.56.0.0 – 131.56.255.255 | 65,536 | US |
allocated | 1989-10-13 | 45fe880b68a8… |
| 132.1.0.0 – 132.1.255.255 | 65,536 | US |
allocated | 1989-10-13 | 45fe880b68a8… |
| 132.3.0.0 – 132.3.255.255 | 65,536 | US |
allocated | 1989-10-13 | 45fe880b68a8… |
| 132.18.0.0 – 132.18.255.255 | 65,536 | US |
allocated | 1989-10-13 | 45fe880b68a8… |
| 132.22.0.0 – 132.22.255.255 | 65,536 | US |
allocated | 1989-10-13 | 45fe880b68a8… |
| 132.42.0.0 – 132.42.255.255 | 65,536 | US |
allocated | 1989-10-13 | 45fe880b68a8… |
| 132.43.0.0 – 132.43.255.255 | 65,536 | US |
allocated | 1989-10-13 | 45fe880b68a8… |
| 132.44.0.0 – 132.44.255.255 | 65,536 | US |
allocated | 1989-10-13 | 45fe880b68a8… |
| 132.49.0.0 – 132.49.255.255 | 65,536 | US |
allocated | 1989-10-13 | 45fe880b68a8… |
| 132.52.0.0 – 132.52.255.255 | 65,536 | US |
allocated | 1989-10-13 | 45fe880b68a8… |
| 132.59.0.0 – 132.59.255.255 | 65,536 | US |
allocated | 1989-10-13 | 45fe880b68a8… |
| 132.46.0.0 – 132.46.255.255 | 65,536 | US |
allocated | 1989-10-11 | 45fe880b68a8… |
| 137.20.0.0 – 137.20.255.255 | 65,536 | US |
allocated | 1989-10-11 | 5da36e41edf3… |
| 137.21.0.0 – 137.21.255.255 | 65,536 | US |
allocated | 1989-10-11 | dfb5b08c31e4… |
| 137.22.0.0 – 137.22.31.255 | 8,192 | US |
allocated | 1989-10-11 | c4c0a27b7e93… |
| 137.22.64.0 – 137.22.95.255 | 8,192 | US |
allocated | 1989-10-11 | c4c0a27b7e93… |
| 137.22.192.0 – 137.22.223.255 | 8,192 | US |
allocated | 1989-10-11 | c4c0a27b7e93… |