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
1,645,875,712
📦
IPv4 networks
76,665
delegated blocks
🧭
IPv6 networks
11,326
delegated blocks
🔗
Autonomous systems
34,014
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 128.100.0.0 – 128.100.255.255 | 65,536 |  CA |
allocated | 1986-01-09 | ab0b04510ace… |
| 128.101.0.0 – 128.101.255.255 | 65,536 |  US |
allocated | 1986-01-09 | 252351fbc17c… |
| 192.5.135.0 – 192.5.135.255 | 256 | US |
allocated | 1985-12-23 | 9b41255c6e4f… |
| 192.5.136.0 – 192.5.139.255 | 1,024 | US |
allocated | 1985-12-23 | 9b41255c6e4f… |
| 192.5.140.0 – 192.5.141.255 | 512 | US |
allocated | 1985-12-23 | 9b41255c6e4f… |
| 192.12.184.0 – 192.12.184.255 | 256 | US |
allocated | 1985-12-18 | d36aed7aeb09… |
| 192.5.134.0 – 192.5.134.255 | 256 | US |
allocated | 1985-12-12 | 6af3dbdad10c… |
| 192.12.174.0 – 192.12.175.255 | 512 | CA |
allocated | 1985-12-02 | ab0b04510ace… |
| 192.12.176.0 – 192.12.183.255 | 2,048 | CA |
allocated | 1985-12-02 | ab0b04510ace… |
| 192.20.0.0 – 192.20.127.255 | 32,768 | US |
allocated | 1985-11-27 | 7347b13c724c… |
| 192.20.128.0 – 192.20.191.255 | 16,384 | US |
allocated | 1985-11-27 | 7347b13c724c… |
| 192.20.192.0 – 192.20.223.255 | 8,192 | US |
allocated | 1985-11-27 | 7347b13c724c… |
| 192.20.224.0 – 192.20.224.255 | 256 | US |
allocated | 1985-11-27 | 7347b13c724c… |
| 192.20.226.0 – 192.20.227.255 | 512 | US |
allocated | 1985-11-27 | 7347b13c724c… |
| 192.20.228.0 – 192.20.231.255 | 1,024 | US |
allocated | 1985-11-27 | 7347b13c724c… |
| 192.20.232.0 – 192.20.235.255 | 1,024 | US |
allocated | 1985-11-27 | 7347b13c724c… |
| 192.20.236.0 – 192.20.237.255 | 512 | US |
allocated | 1985-11-27 | 7347b13c724c… |
| 192.20.238.0 – 192.20.238.255 | 256 | US |
allocated | 1985-11-27 | 7347b13c724c… |
| 192.20.239.0 – 192.20.239.255 | 256 | US |
allocated | 1985-11-27 | 84b0140897a5… |
| 192.20.240.0 – 192.20.255.255 | 4,096 | US |
allocated | 1985-11-27 | 7347b13c724c… |
| 192.19.0.0 – 192.19.255.255 | 65,536 | US |
allocated | 1985-11-18 | 399da38fd3d4… |
| 192.12.171.0 – 192.12.171.255 | 256 | US |
allocated | 1985-11-14 | 45fe880b68a8… |
| 128.97.0.0 – 128.97.255.255 | 65,536 | US |
allocated | 1985-11-11 | 4fd07590de28… |
| 192.5.133.0 – 192.5.133.255 | 256 | US |
allocated | 1985-11-11 | 525171dde1d1… |
| 192.12.145.0 – 192.12.145.255 | 256 | US |
allocated | 1985-11-05 | b932558eb528… |
| 192.12.150.0 – 192.12.151.255 | 512 | US |
allocated | 1985-11-05 | b932558eb528… |
| 192.12.152.0 – 192.12.153.255 | 512 | US |
allocated | 1985-11-05 | b932558eb528… |
| 128.96.0.0 – 128.96.255.255 | 65,536 | US |
allocated | 1985-11-04 | 41d606401cb6… |
| 192.5.100.0 – 192.5.100.255 | 256 | US |
allocated | 1985-11-01 | 64d5354b3ebf… |
| 192.12.142.0 – 192.12.142.255 | 256 | US |
allocated | 1985-10-30 | df60bf18efe7… |
| 192.12.143.0 – 192.12.143.255 | 256 | US |
allocated | 1985-10-30 | df60bf18efe7… |
| 192.12.141.0 – 192.12.141.255 | 256 | US |
allocated | 1985-10-23 | 0b4c396f0b41… |
| 192.12.129.0 – 192.12.129.255 | 256 | CA |
allocated | 1985-10-21 | 8fc5a0642a90… |
| 192.12.132.0 – 192.12.132.255 | 256 | US |
allocated | 1985-10-15 | 2be2a0b0a861… |
| 192.12.133.0 – 192.12.133.255 | 256 | US |
allocated | 1985-10-15 | 2be2a0b0a861… |
| 192.12.134.0 – 192.12.134.255 | 256 | US |
allocated | 1985-10-15 | 2be2a0b0a861… |
| 192.12.135.0 – 192.12.135.255 | 256 | US |
allocated | 1985-10-15 | 2be2a0b0a861… |
| 192.12.136.0 – 192.12.136.255 | 256 | US |
allocated | 1985-10-15 | 2be2a0b0a861… |
| 192.12.137.0 – 192.12.137.255 | 256 | US |
allocated | 1985-10-15 | 2be2a0b0a861… |
| 192.12.138.0 – 192.12.138.255 | 256 | US |
allocated | 1985-10-15 | 2be2a0b0a861… |
| 192.12.140.0 – 192.12.140.255 | 256 | US |
allocated | 1985-10-15 | 199602be8669… |
| 192.12.139.0 – 192.12.139.255 | 256 | US |
allocated | 1985-10-10 | 45fe880b68a8… |
| 192.12.125.0 – 192.12.125.255 | 256 | US |
allocated | 1985-10-03 | 45fe880b68a8… |
| 192.12.126.0 – 192.12.126.255 | 256 | US |
allocated | 1985-10-03 | 45fe880b68a8… |
| 192.12.127.0 – 192.12.127.255 | 256 | US |
allocated | 1985-10-03 | 9b41255c6e4f… |
| 192.12.11.0 – 192.12.11.255 | 256 | US |
allocated | 1985-09-27 | d98c567cda2d… |
| 192.12.123.0 – 192.12.123.255 | 256 | US |
allocated | 1985-09-20 | 2d90cbf4f78e… |
| 192.12.124.0 – 192.12.124.255 | 256 | US |
allocated | 1985-09-20 | 45fe880b68a8… |
| 128.91.0.0 – 128.91.255.255 | 65,536 | US |
allocated | 1985-09-18 | f56754654451… |
| 192.12.121.0 – 192.12.121.255 | 256 | US |
allocated | 1985-09-18 | c51d02ec525f… |
| 192.12.122.0 – 192.12.122.255 | 256 | US |
allocated | 1985-09-18 | c51d02ec525f… |
| 192.5.89.0 – 192.5.89.255 | 256 | US |
allocated | 1985-09-16 | 2c8438ff5e93… |
| 192.5.114.0 – 192.5.114.255 | 256 | US |
allocated | 1985-09-09 | 6af3dbdad10c… |
| 192.5.115.0 – 192.5.115.255 | 256 | US |
allocated | 1985-09-09 | 6af3dbdad10c… |
| 192.5.116.0 – 192.5.119.255 | 1,024 | US |
allocated | 1985-09-09 | 45fe880b68a8… |
| 192.5.120.0 – 192.5.127.255 | 2,048 | US |
allocated | 1985-09-09 | 45fe880b68a8… |
| 192.5.128.0 – 192.5.131.255 | 1,024 | US |
allocated | 1985-09-09 | 45fe880b68a8… |
| 192.5.132.0 – 192.5.132.255 | 256 | US |
allocated | 1985-09-09 | 45fe880b68a8… |
| 192.18.0.0 – 192.18.127.255 | 32,768 | US |
allocated | 1985-09-09 | ace55d4dc090… |
| 192.18.128.0 – 192.18.191.255 | 16,384 | US |
allocated | 1985-09-09 | ace55d4dc090… |
| 192.18.192.0 – 192.18.193.255 | 512 | US |
allocated | 1985-09-09 | ace55d4dc090… |
| 192.18.194.0 – 192.18.194.255 | 256 | US |
allocated | 1985-09-09 | ace55d4dc090… |
| 192.18.196.0 – 192.18.199.255 | 1,024 | US |
allocated | 1985-09-09 | ace55d4dc090… |
| 192.18.200.0 – 192.18.207.255 | 2,048 | US |
allocated | 1985-09-09 | ace55d4dc090… |
| 192.18.208.0 – 192.18.223.255 | 4,096 | US |
allocated | 1985-09-09 | ace55d4dc090… |
| 192.18.224.0 – 192.18.255.255 | 8,192 | US |
allocated | 1985-09-09 | ace55d4dc090… |
| 192.12.102.0 – 192.12.102.255 | 256 | US |
allocated | 1985-09-04 | 2d90cbf4f78e… |
| 192.12.120.0 – 192.12.120.255 | 256 | US |
allocated | 1985-09-04 | e46d50b27c27… |
| 192.12.101.0 – 192.12.101.255 | 256 | US |
allocated | 1985-08-28 | 9fcea28d0773… |
| 128.6.0.0 – 128.6.255.255 | 65,536 | US |
allocated | 1985-08-16 | 0c6664b17c1e… |
| 192.12.89.0 – 192.12.89.255 | 256 | US |
allocated | 1985-08-07 | 43d4350210d5… |
| 192.12.90.0 – 192.12.90.255 | 256 | US |
allocated | 1985-08-07 | 43d4350210d5… |
| 192.12.88.0 – 192.12.88.255 | 256 | US |
allocated | 1985-08-05 | 0c6664b17c1e… |
| 192.12.80.0 – 192.12.80.255 | 256 | US |
allocated | 1985-07-23 | 444a75b49e4b… |
| 192.12.82.0 – 192.12.82.255 | 256 | US |
allocated | 1985-07-23 | 148b369d3a54… |
| 128.88.0.0 – 128.88.255.255 | 65,536 | US |
allocated | 1985-07-17 | 1e6aecf01600… |
| 192.12.78.0 – 192.12.78.255 | 256 | US |
allocated | 1985-07-11 | 7de0a857d7c5… |
| 192.12.75.0 – 192.12.75.255 | 256 | US |
allocated | 1985-06-24 | 04b1a93e04c6… |
| 192.12.74.0 – 192.12.74.255 | 256 | US |
allocated | 1985-06-07 | c1e8d3f619ee… |
| 128.83.0.0 – 128.83.255.255 | 65,536 | US |
allocated | 1985-05-29 | ca6a9d04dac1… |
| 128.84.0.0 – 128.84.255.255 | 65,536 | US |
allocated | 1985-05-29 | e33c6946c6dd… |
| 192.12.69.0 – 192.12.69.255 | 256 | US |
allocated | 1985-05-16 | 6d25f5314a15… |
| 192.12.70.0 – 192.12.70.255 | 256 | US |
allocated | 1985-05-16 | 45fe880b68a8… |
| 192.12.71.0 – 192.12.71.255 | 256 | US |
allocated | 1985-05-16 | 45fe880b68a8… |
| 192.12.68.0 – 192.12.68.255 | 256 | US |
allocated | 1985-04-30 | c7d472fb172e… |
| 192.12.65.0 – 192.12.65.255 | 256 | US |
allocated | 1985-04-24 | 45fe880b68a8… |
| 192.12.66.0 – 192.12.67.255 | 512 | US |
allocated | 1985-04-24 | 45fe880b68a8… |
| 192.12.64.0 – 192.12.64.255 | 256 | US |
allocated | 1985-04-22 | 45fe880b68a8… |
| 192.12.63.0 – 192.12.63.255 | 256 | US |
allocated | 1985-04-19 | ff4fb015f8c7… |
| 192.12.57.0 – 192.12.57.255 | 256 | US |
allocated | 1985-04-11 | 6dd814657e30… |
| 192.12.58.0 – 192.12.58.255 | 256 | US |
allocated | 1985-04-11 | 6dd814657e30… |
| 192.12.59.0 – 192.12.59.255 | 256 | US |
allocated | 1985-04-11 | 6dd814657e30… |
| 192.12.60.0 – 192.12.60.255 | 256 | US |
allocated | 1985-04-11 | 6dd814657e30… |
| 192.12.61.0 – 192.12.61.255 | 256 | US |
allocated | 1985-04-11 | 6dd814657e30… |
| 192.12.62.0 – 192.12.62.255 | 256 | CA |
allocated | 1985-04-11 | c8bae1572cdf… |
| 192.12.56.0 – 192.12.56.255 | 256 | US |
allocated | 1985-04-09 | ce48cbd2051d… |
| 128.80.0.0 – 128.80.255.255 | 65,536 | US |
allocated | 1985-04-03 | 45fe880b68a8… |
| 192.12.53.0 – 192.12.53.255 | 256 | US |
allocated | 1985-03-22 | c48be6e5205b… |
| 128.63.0.0 – 128.63.255.255 | 65,536 | US |
allocated | 1985-03-12 | 45fe880b68a8… |
| 128.62.0.0 – 128.62.255.255 | 65,536 | US |
allocated | 1985-03-05 | ca6a9d04dac1… |