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 |
|---|---|---|---|---|---|
| 192.31.152.0 – 192.31.152.255 | 256 |  US |
allocated | 1987-07-15 | c55cb003302d… |
| 129.21.0.0 – 129.21.255.255 | 65,536 | US |
allocated | 1987-07-14 | 4893e8e9b3ed… |
| 192.31.147.0 – 192.31.147.255 | 256 | US |
allocated | 1987-07-14 | 45fe880b68a8… |
| 192.31.148.0 – 192.31.148.255 | 256 | US |
allocated | 1987-07-14 | 291412511d7f… |
| 192.31.149.0 – 192.31.149.255 | 256 | US |
allocated | 1987-07-14 | dd02f9b1a9de… |
| 192.31.150.0 – 192.31.150.255 | 256 | US |
allocated | 1987-07-14 | 4e16cd00a12b… |
| 129.19.0.0 – 129.19.255.255 | 65,536 | US |
allocated | 1987-07-08 | e6fd339d7ca6… |
| 192.31.114.0 – 192.31.114.255 | 256 | US |
allocated | 1987-07-08 | b937c22d3156… |
| 192.31.115.0 – 192.31.115.255 | 256 | US |
allocated | 1987-07-08 | 0f3aa2411181… |
| 192.31.145.0 – 192.31.145.255 | 256 | US |
allocated | 1987-07-08 | 5f676a1dae02… |
| 192.31.146.0 – 192.31.146.255 | 256 | US |
allocated | 1987-07-08 | 64f5d925fdeb… |
| 129.14.0.0 – 129.14.255.255 | 65,536 | US |
allocated | 1987-06-29 | 0418d3fd070a… |
| 192.31.7.0 – 192.31.7.255 | 256 | US |
allocated | 1987-06-29 | 6f69b4fbc4a7… |
| 192.31.8.0 – 192.31.8.255 | 256 | US |
allocated | 1987-06-29 | 45fe880b68a8… |
| 192.31.108.0 – 192.31.108.255 | 256 | US |
allocated | 1987-06-29 | 6413b68f7d21… |
| 192.31.111.0 – 192.31.111.255 | 256 | US |
allocated | 1987-06-29 | 00c4f2f16a98… |
| 192.31.112.0 – 192.31.112.255 | 256 | US |
allocated | 1987-06-29 | ea9a6d6f3de0… |
| 192.31.95.0 – 192.31.95.255 | 256 | US |
allocated | 1987-06-25 | 0ff513819226… |
| 192.31.105.0 – 192.31.105.255 | 256 | US |
allocated | 1987-06-22 | 0ff513819226… |
| 128.180.0.0 – 128.180.255.255 | 65,536 | US |
allocated | 1987-06-18 | 0ded34a02ad7… |
| 129.8.0.0 – 129.8.255.255 | 65,536 | US |
allocated | 1987-06-18 | f2877a078a21… |
| 129.9.0.0 – 129.9.255.255 | 65,536 | US |
allocated | 1987-06-18 | 7f6a64906d14… |
| 129.7.0.0 – 129.7.255.255 | 65,536 | US |
allocated | 1987-06-16 | 3a3d8b044f32… |
| 192.31.100.0 – 192.31.100.255 | 256 | US |
allocated | 1987-06-16 | 45fe880b68a8… |
| 129.5.0.0 – 129.5.255.255 | 65,536 | US |
allocated | 1987-06-12 | ec481d7c38c5… |
| 129.6.0.0 – 129.6.255.255 | 65,536 | US |
allocated | 1987-06-12 | d5a025d296fe… |
| 192.31.98.0 – 192.31.98.255 | 256 | US |
allocated | 1987-06-11 | 45fe880b68a8… |
| 192.31.97.0 – 192.31.97.255 | 256 | US |
allocated | 1987-06-10 | 0a40a6588bbe… |
| 128.253.0.0 – 128.253.255.255 | 65,536 | US |
allocated | 1987-06-05 | e33c6946c6dd… |
| 128.255.0.0 – 128.255.255.255 | 65,536 | US |
allocated | 1987-06-05 | 5c1a6c2c41fb… |
| 129.1.0.0 – 129.1.255.255 | 65,536 | US |
allocated | 1987-06-05 | 5ed95550ceaa… |
| 129.15.0.0 – 129.15.255.255 | 65,536 | US |
allocated | 1987-06-05 | 991cf91104c8… |
| 192.31.90.0 – 192.31.90.255 | 256 | US |
allocated | 1987-06-05 | ce61e2983fcf… |
| 128.254.0.0 – 128.254.127.255 | 32,768 | US |
allocated | 1987-06-04 | 9fc1a9159ee4… |
| 128.244.0.0 – 128.244.255.255 | 65,536 | US |
allocated | 1987-06-03 | 6a8d7f5376c9… |
| 128.252.0.0 – 128.252.255.255 | 65,536 | US |
allocated | 1987-06-03 | 77cf484ac978… |
| 128.247.0.0 – 128.247.255.255 | 65,536 | US |
allocated | 1987-05-28 | acfc4932ac54… |
| 128.248.0.0 – 128.248.255.255 | 65,536 | US |
allocated | 1987-05-28 | d57c1a0e7da3… |
| 128.249.0.0 – 128.249.255.255 | 65,536 | US |
allocated | 1987-05-28 | 28bef9cf7e9c… |
| 192.31.83.0 – 192.31.83.255 | 256 | US |
allocated | 1987-05-22 | 3b0a1a1c95ba… |
| 192.31.84.0 – 192.31.84.255 | 256 | US |
allocated | 1987-05-22 | 1b41ed541fc3… |
| 192.31.79.0 – 192.31.79.255 | 256 | US |
allocated | 1987-05-14 | 4a22d6d601f0… |
| 192.31.75.0 – 192.31.75.255 | 256 | US |
allocated | 1987-05-10 | 45fe880b68a8… |
| 192.31.76.0 – 192.31.76.255 | 256 | US |
allocated | 1987-05-10 | 45fe880b68a8… |
| 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… |