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 |
|---|---|---|---|---|---|
| 192.31.77.0 – 192.31.77.255 | 256 |  US |
allocated | 1987-05-10 | 1c3d2294f894… |
| 192.31.78.0 – 192.31.78.255 | 256 | US |
allocated | 1987-05-10 | dd02f9b1a9de… |
| 192.31.63.0 – 192.31.63.255 | 256 | US |
allocated | 1987-05-08 | b35b5cbf6780… |
| 192.31.64.0 – 192.31.64.255 | 256 | US |
allocated | 1987-05-08 | b35b5cbf6780… |
| 192.31.65.0 – 192.31.65.255 | 256 | US |
allocated | 1987-05-08 | b35b5cbf6780… |
| 192.31.66.0 – 192.31.66.255 | 256 | US |
allocated | 1987-05-08 | b35b5cbf6780… |
| 192.31.67.0 – 192.31.67.255 | 256 | US |
allocated | 1987-05-08 | b35b5cbf6780… |
| 192.31.68.0 – 192.31.68.255 | 256 | US |
allocated | 1987-05-08 | b35b5cbf6780… |
| 192.31.69.0 – 192.31.69.255 | 256 | US |
allocated | 1987-05-08 | b35b5cbf6780… |
| 192.31.70.0 – 192.31.70.255 | 256 | US |
allocated | 1987-05-08 | b35b5cbf6780… |
| 192.31.71.0 – 192.31.71.255 | 256 | US |
allocated | 1987-05-08 | b35b5cbf6780… |
| 192.31.72.0 – 192.31.72.255 | 256 | US |
allocated | 1987-05-08 | b35b5cbf6780… |
| 192.31.73.0 – 192.31.73.255 | 256 | US |
allocated | 1987-05-08 | a6a7e0a58963… |
| 192.31.74.0 – 192.31.74.255 | 256 | US |
allocated | 1987-05-08 | 6af3dbdad10c… |
| 128.226.0.0 – 128.226.255.255 | 65,536 | US |
allocated | 1987-05-06 | 14ebd7b9cab9… |
| 128.227.0.0 – 128.227.255.255 | 65,536 | US |
allocated | 1987-05-06 | 077fc54e2fbb… |
| 128.228.0.0 – 128.228.255.255 | 65,536 | US |
allocated | 1987-05-06 | e6cf6cac6739… |
| 128.229.0.0 – 128.229.255.255 | 65,536 | US |
allocated | 1987-05-06 | aad956974d43… |
| 128.230.0.0 – 128.230.255.255 | 65,536 | US |
allocated | 1987-05-06 | 33c1406edb54… |
| 128.231.0.0 – 128.231.255.255 | 65,536 | US |
allocated | 1987-05-06 | bf415d4b2902… |
| 128.233.0.0 – 128.233.255.255 | 65,536 |  CA |
allocated | 1987-05-06 | b9f96a72b651… |
| 128.235.0.0 – 128.235.255.255 | 65,536 | US |
allocated | 1987-05-06 | 6521b564b48f… |
| 128.236.0.0 – 128.236.255.255 | 65,536 | US |
allocated | 1987-05-06 | 45fe880b68a8… |
| 128.237.0.0 – 128.237.255.255 | 65,536 | US |
allocated | 1987-05-06 | 859ff8395a14… |
| 128.238.0.0 – 128.238.255.255 | 65,536 | US |
allocated | 1987-05-06 | 836f1fa0457c… |
| 128.239.0.0 – 128.239.255.255 | 65,536 | US |
allocated | 1987-05-06 | 921ce82077bd… |
| 192.31.24.0 – 192.31.24.255 | 256 | US |
allocated | 1987-04-22 | 0596821a6910… |
| 192.31.28.0 – 192.31.28.255 | 256 | US |
allocated | 1987-04-22 | 6d25f5314a15… |
| 192.31.30.0 – 192.31.30.255 | 256 | US |
allocated | 1987-04-22 | aad956974d43… |
| 192.31.32.0 – 192.31.35.255 | 1,024 | US |
allocated | 1987-04-22 | 66defc41fc95… |
| 192.31.36.0 – 192.31.36.255 | 256 | US |
allocated | 1987-04-22 | 66defc41fc95… |
| 192.31.38.0 – 192.31.38.255 | 256 | US |
allocated | 1987-04-15 | acfc4932ac54… |
| 128.223.0.0 – 128.223.255.255 | 65,536 | US |
allocated | 1987-04-07 | 5395ad8c1f13… |
| 128.225.0.0 – 128.225.255.255 | 65,536 | US |
allocated | 1987-04-07 | e1ed1885c9ce… |
| 192.31.37.0 – 192.31.37.255 | 256 | US |
allocated | 1987-04-06 | 4d9a37608d72… |
| 192.31.22.0 – 192.31.22.255 | 256 | US |
allocated | 1987-03-26 | 4d9a37608d72… |
| 128.217.0.0 – 128.217.255.255 | 65,536 | US |
allocated | 1987-03-24 | 2d90cbf4f78e… |
| 128.218.0.0 – 128.218.255.255 | 65,536 | US |
allocated | 1987-03-24 | 634aa2981c1d… |
| 128.220.0.0 – 128.220.255.255 | 65,536 | US |
allocated | 1987-03-24 | f3b18f5798f3… |
| 128.221.0.0 – 128.221.255.255 | 65,536 | US |
allocated | 1987-03-24 | 4cb61b484442… |
| 128.222.0.0 – 128.222.255.255 | 65,536 | US |
allocated | 1987-03-24 | 4cb61b484442… |
| 128.216.0.0 – 128.216.255.255 | 65,536 | US |
allocated | 1987-03-23 | 45fe880b68a8… |
| 192.31.10.0 – 192.31.10.255 | 256 | US |
allocated | 1987-03-23 | 45fe880b68a8… |
| 192.31.11.0 – 192.31.11.255 | 256 | US |
allocated | 1987-03-23 | 45fe880b68a8… |
| 192.31.12.0 – 192.31.12.255 | 256 | US |
allocated | 1987-03-23 | 45fe880b68a8… |
| 192.31.13.0 – 192.31.13.255 | 256 | US |
allocated | 1987-03-23 | 45fe880b68a8… |
| 192.31.16.0 – 192.31.16.255 | 256 | US |
allocated | 1987-03-23 | 45fe880b68a8… |
| 192.31.18.0 – 192.31.18.255 | 256 | US |
allocated | 1987-03-23 | 45fe880b68a8… |
| 192.31.19.0 – 192.31.19.255 | 256 | US |
allocated | 1987-03-23 | 45fe880b68a8… |
| 192.31.20.0 – 192.31.20.255 | 256 | US |
allocated | 1987-03-23 | 45fe880b68a8… |
| 192.31.21.0 – 192.31.21.255 | 256 | US |
allocated | 1987-03-23 | abca6759f071… |
| 128.215.0.0 – 128.215.255.255 | 65,536 | US |
allocated | 1987-03-16 | 1e8f556759f4… |
| 192.31.6.0 – 192.31.6.255 | 256 | CA |
allocated | 1987-03-13 | adb630736dcd… |
| 128.210.0.0 – 128.210.255.255 | 65,536 | US |
allocated | 1987-03-12 | ff4fb015f8c7… |
| 128.211.0.0 – 128.211.255.255 | 65,536 | US |
allocated | 1987-03-12 | ff4fb015f8c7… |
| 128.213.0.0 – 128.213.255.255 | 65,536 | US |
allocated | 1987-03-12 | ff6ac5f645ba… |
| 192.31.0.0 – 192.31.0.255 | 256 | US |
allocated | 1987-03-12 | ff4fb015f8c7… |
| 192.31.1.0 – 192.31.1.255 | 256 | US |
allocated | 1987-03-12 | e43f12c6ea05… |
| 192.31.4.0 – 192.31.4.255 | 256 | US |
allocated | 1987-03-12 | 6af3dbdad10c… |
| 192.31.5.0 – 192.31.5.255 | 256 | US |
allocated | 1987-03-12 | e1ed1885c9ce… |
| 192.30.44.0 – 192.30.44.255 | 256 | US |
allocated | 1987-03-10 | 7fb8a242cb09… |
| 192.30.61.0 – 192.30.61.255 | 256 | US |
allocated | 1987-03-10 | 501eb4ea8218… |
| 192.30.93.0 – 192.30.93.255 | 256 | US |
allocated | 1987-03-10 | 4a34b9f7ce6e… |
| 192.30.94.0 – 192.30.94.255 | 256 | US |
allocated | 1987-03-10 | 4a34b9f7ce6e… |
| 192.30.108.0 – 192.30.108.255 | 256 | US |
allocated | 1987-03-10 | 0596821a6910… |
| 192.30.125.0 – 192.30.125.255 | 256 | US |
allocated | 1987-03-10 | 0596821a6910… |
| 192.30.142.0 – 192.30.142.255 | 256 | CA |
allocated | 1987-03-10 | 82e815a09812… |
| 192.30.149.0 – 192.30.149.255 | 256 | CA |
allocated | 1987-03-10 | 82e815a09812… |
| 192.30.200.0 – 192.30.200.255 | 256 | US |
allocated | 1987-03-10 | 501eb4ea8218… |
| 192.30.202.0 – 192.30.202.255 | 256 | CA |
allocated | 1987-03-10 | 82e815a09812… |
| 192.30.206.0 – 192.30.206.255 | 256 | US |
allocated | 1987-03-10 | 0596821a6910… |
| 192.30.207.0 – 192.30.207.255 | 256 | US |
allocated | 1987-03-10 | 0596821a6910… |
| 192.30.226.0 – 192.30.226.255 | 256 | CA |
allocated | 1987-03-10 | 82e815a09812… |
| 128.207.0.0 – 128.207.255.255 | 65,536 | US |
allocated | 1987-03-05 | e1ed1885c9ce… |
| 128.208.0.0 – 128.208.255.255 | 65,536 | US |
allocated | 1987-03-05 | 57de9c13c3e4… |
| 192.26.97.0 – 192.26.97.255 | 256 | US |
allocated | 1987-02-26 | b932558eb528… |
| 192.26.147.0 – 192.26.147.255 | 256 | US |
allocated | 1987-02-26 | d3cc487da4a3… |
| 192.26.148.0 – 192.26.148.255 | 256 | US |
allocated | 1987-02-26 | 0c6664b17c1e… |
| 192.26.149.0 – 192.26.149.255 | 256 | US |
allocated | 1987-02-26 | 9b41255c6e4f… |
| 192.26.150.0 – 192.26.150.255 | 256 | US |
allocated | 1987-02-26 | b5cc3d8886d1… |
| 192.26.151.0 – 192.26.151.255 | 256 | US |
allocated | 1987-02-26 | de3bcfa67cbb… |
| 128.200.0.0 – 128.200.255.255 | 65,536 | US |
allocated | 1987-02-19 | 6be5ed29148a… |
| 192.26.95.0 – 192.26.95.255 | 256 | US |
allocated | 1987-02-19 | 9b41255c6e4f… |
| 192.100.101.0 – 192.100.101.255 | 256 | CA |
allocated | 1987-02-19 | 4775463592d4… |
| 128.197.0.0 – 128.197.255.255 | 65,536 | US |
allocated | 1987-02-04 | e553a0a4bf12… |
| 128.198.0.0 – 128.198.255.255 | 65,536 | US |
allocated | 1987-02-04 | 6f356c09a1d1… |
| 192.26.89.0 – 192.26.89.255 | 256 | US |
allocated | 1987-01-28 | 45fe880b68a8… |
| 192.26.90.0 – 192.26.90.255 | 256 | US |
allocated | 1987-01-28 | 215c8e9c6a09… |
| 192.29.0.0 – 192.29.255.255 | 65,536 | US |
allocated | 1987-01-23 | ace55d4dc090… |
| 128.196.0.0 – 128.196.255.255 | 65,536 | US |
allocated | 1987-01-22 | 6d25f5314a15… |
| 128.195.0.0 – 128.195.255.255 | 65,536 | US |
allocated | 1987-01-20 | 6be5ed29148a… |
| 128.193.0.0 – 128.193.255.255 | 65,536 | US |
allocated | 1987-01-16 | b79b611d103f… |
| 128.194.0.0 – 128.194.255.255 | 65,536 | US |
allocated | 1987-01-16 | e0cd88697e12… |
| 128.191.0.0 – 128.191.255.255 | 65,536 | US |
allocated | 1987-01-15 | 23bb6e997ace… |
| 128.192.0.0 – 128.192.255.255 | 65,536 | US |
allocated | 1987-01-15 | 1131aaffa515… |
| 128.189.0.0 – 128.189.255.255 | 65,536 | CA |
allocated | 1987-01-08 | b764959acfe6… |
| 128.190.0.0 – 128.190.255.255 | 65,536 | US |
allocated | 1987-01-08 | 45fe880b68a8… |
| 128.186.0.0 – 128.186.255.255 | 65,536 | US |
allocated | 1987-01-07 | c51d02ec525f… |
| 128.187.0.0 – 128.187.255.255 | 65,536 | US |
allocated | 1987-01-07 | 1347e519ad84… |
| 192.26.85.0 – 192.26.85.255 | 256 | US |
allocated | 1987-01-07 | 03772d84e56b… |