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
34,292
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 192.31.227.0 – 192.31.227.255 | 256 |  US |
allocated | 1987-09-11 | 9cae29406a59… |
| 192.31.230.0 – 192.31.230.255 | 256 | US |
allocated | 1987-09-11 | 51d9a9df21c3… |
| 192.31.225.0 – 192.31.225.255 | 256 | US |
allocated | 1987-09-09 | 45fe880b68a8… |
| 192.31.226.0 – 192.31.226.255 | 256 | US |
allocated | 1987-09-09 | 45fe880b68a8… |
| 129.68.0.0 – 129.68.255.255 | 65,536 | US |
allocated | 1987-09-08 | 326dd7381855… |
| 192.31.217.0 – 192.31.217.255 | 256 | US |
allocated | 1987-09-08 | 6dd814657e30… |
| 192.31.218.0 – 192.31.218.255 | 256 | US |
allocated | 1987-09-08 | 6dd814657e30… |
| 192.31.219.0 – 192.31.219.255 | 256 | US |
allocated | 1987-09-08 | 6dd814657e30… |
| 192.31.220.0 – 192.31.220.255 | 256 | US |
allocated | 1987-09-08 | 6dd814657e30… |
| 192.31.221.0 – 192.31.221.255 | 256 | US |
allocated | 1987-09-08 | 6dd814657e30… |
| 192.31.222.0 – 192.31.222.255 | 256 | US |
allocated | 1987-09-08 | 30b5ca67d880… |
| 129.66.0.0 – 129.66.255.255 | 65,536 | US |
allocated | 1987-09-05 | 67dbee9e775b… |
| 129.64.0.0 – 129.64.255.255 | 65,536 | US |
allocated | 1987-09-04 | a3e57da087ce… |
| 129.65.0.0 – 129.65.255.255 | 65,536 | US |
allocated | 1987-09-04 | bae608539371… |
| 129.62.0.0 – 129.62.255.255 | 65,536 | US |
allocated | 1987-09-01 | 24599e5446be… |
| 129.63.0.0 – 129.63.255.255 | 65,536 | US |
allocated | 1987-09-01 | 880d289bce3f… |
| 129.61.0.0 – 129.61.255.255 | 65,536 | US |
allocated | 1987-08-31 | 45fe880b68a8… |
| 192.31.210.0 – 192.31.210.255 | 256 | US |
allocated | 1987-08-30 | b685007a3aa4… |
| 192.31.175.0 – 192.31.175.255 | 256 | US |
allocated | 1987-08-21 | 4aa82cb7ec18… |
| 192.31.176.0 – 192.31.176.255 | 256 | US |
allocated | 1987-08-21 | c57d541ff302… |
| 129.59.0.0 – 129.59.255.255 | 65,536 | US |
allocated | 1987-08-17 | 8a06210186dd… |
| 129.58.0.0 – 129.58.255.255 | 65,536 | US |
allocated | 1987-08-07 | d2cb182d1e42… |
| 129.51.0.0 – 129.51.255.255 | 65,536 | US |
allocated | 1987-08-06 | 45fe880b68a8… |
| 129.52.0.0 – 129.52.255.255 | 65,536 | US |
allocated | 1987-08-06 | 45fe880b68a8… |
| 129.54.0.0 – 129.54.255.255 | 65,536 | US |
allocated | 1987-08-06 | 45fe880b68a8… |
| 129.55.0.0 – 129.55.255.255 | 65,536 | US |
allocated | 1987-08-06 | 9b41255c6e4f… |
| 129.50.0.0 – 129.50.255.255 | 65,536 | US |
allocated | 1987-08-05 | 2d90cbf4f78e… |
| 192.31.164.0 – 192.31.164.255 | 256 | US |
allocated | 1987-08-04 | e46d50b27c27… |
| 129.49.0.0 – 129.49.255.255 | 65,536 | US |
allocated | 1987-08-03 | 43d4350210d5… |
| 129.46.0.0 – 129.46.255.255 | 65,536 | US |
allocated | 1987-07-31 | f98fd00a1324… |
| 129.48.0.0 – 129.48.255.255 | 65,536 | US |
allocated | 1987-07-31 | 45fe880b68a8… |
| 129.41.0.0 – 129.41.31.255 | 8,192 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.32.0 – 129.41.35.255 | 1,024 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.36.0 – 129.41.39.255 | 1,024 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.40.0 – 129.41.41.255 | 512 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.42.0 – 129.41.42.255 | 256 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.43.0 – 129.41.43.255 | 256 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.44.0 – 129.41.44.255 | 256 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.45.0 – 129.41.45.255 | 256 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.46.0 – 129.41.47.255 | 512 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.48.0 – 129.41.51.255 | 1,024 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.52.0 – 129.41.52.255 | 256 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.53.0 – 129.41.53.255 | 256 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.54.0 – 129.41.55.255 | 512 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.56.0 – 129.41.59.255 | 1,024 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.60.0 – 129.41.61.255 | 512 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.62.0 – 129.41.63.255 | 512 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.64.0 – 129.41.71.255 | 2,048 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.72.0 – 129.41.75.255 | 1,024 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.76.0 – 129.41.77.255 | 512 | US |
allocated | 1987-07-29 | 24872777a723… |
| 129.41.78.0 – 129.41.79.255 | 512 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.80.0 – 129.41.83.255 | 1,024 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.84.0 – 129.41.87.255 | 1,024 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.88.0 – 129.41.89.255 | 512 | US |
allocated | 1987-07-29 | 24872777a723… |
| 129.41.90.0 – 129.41.90.255 | 256 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.91.0 – 129.41.91.255 | 256 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.92.0 – 129.41.93.255 | 512 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.94.0 – 129.41.94.255 | 256 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.95.0 – 129.41.95.255 | 256 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.96.0 – 129.41.111.255 | 4,096 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.112.0 – 129.41.127.255 | 4,096 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.128.0 – 129.41.159.255 | 8,192 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.160.0 – 129.41.163.255 | 1,024 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.164.0 – 129.41.165.255 | 512 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.166.0 – 129.41.166.255 | 256 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.167.0 – 129.41.167.255 | 256 | US |
allocated | 1987-07-29 | 24872777a723… |
| 129.41.168.0 – 129.41.171.255 | 1,024 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.172.0 – 129.41.175.255 | 1,024 | US |
allocated | 1987-07-29 | 24872777a723… |
| 129.41.176.0 – 129.41.176.255 | 256 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.177.0 – 129.41.177.255 | 256 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.178.0 – 129.41.179.255 | 512 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.180.0 – 129.41.183.255 | 1,024 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.184.0 – 129.41.187.255 | 1,024 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.188.0 – 129.41.189.255 | 512 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.190.0 – 129.41.191.255 | 512 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.192.0 – 129.41.207.255 | 4,096 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.208.0 – 129.41.209.255 | 512 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.210.0 – 129.41.211.255 | 512 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.212.0 – 129.41.215.255 | 1,024 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.216.0 – 129.41.216.255 | 256 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.217.0 – 129.41.217.255 | 256 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.218.0 – 129.41.219.255 | 512 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.220.0 – 129.41.221.255 | 512 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.222.0 – 129.41.222.255 | 256 | US |
allocated | 1987-07-29 | 24872777a723… |
| 129.41.223.0 – 129.41.223.255 | 256 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.224.0 – 129.41.255.255 | 8,192 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.42.0.0 – 129.42.255.255 | 65,536 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.43.0.0 – 129.43.255.255 | 65,536 | US |
allocated | 1987-07-29 | 22c14ad58b39… |
| 129.44.0.0 – 129.44.255.255 | 65,536 | US |
allocated | 1987-07-29 | e220ed812a4c… |
| 192.31.161.0 – 192.31.161.255 | 256 | US |
allocated | 1987-07-29 | 0ff513819226… |
| 129.29.0.0 – 129.29.255.255 | 65,536 | US |
allocated | 1987-07-21 | 45fe880b68a8… |
| 129.32.0.0 – 129.32.255.255 | 65,536 | US |
allocated | 1987-07-21 | fd2336fa1070… |
| 192.31.153.0 – 192.31.153.255 | 256 | US |
allocated | 1987-07-21 | b1a6704d6755… |
| 192.31.160.0 – 192.31.160.255 | 256 | US |
allocated | 1987-07-21 | 45fe880b68a8… |
| 129.25.0.0 – 129.25.255.255 | 65,536 | US |
allocated | 1987-07-20 | 290a2d702707… |
| 192.31.155.0 – 192.31.155.255 | 256 | US |
allocated | 1987-07-20 | 03772d84e56b… |
| 192.31.156.0 – 192.31.156.255 | 256 | US |
allocated | 1987-07-20 | de78695919e0… |
| 192.31.159.0 – 192.31.159.255 | 256 | US |
allocated | 1987-07-20 | b0b543385fb0… |
| 129.24.0.0 – 129.24.255.255 | 65,536 | US |
allocated | 1987-07-17 | e8d5be9b38c9… |
| 192.31.154.0 – 192.31.154.255 | 256 | US |
allocated | 1987-07-17 | e8d5be9b38c9… |