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
1,645,666,816
📦
IPv4 networks
76,690
delegated blocks
🧭
IPv6 networks
11,349
delegated blocks
🔗
Autonomous systems
34,029
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 199.255.244.0 – 199.255.247.255 | 1,024 |  US |
allocated | 2010-06-09 | 3551d5073f27… |
| 64.251.96.0 – 64.251.111.255 | 4,096 | US |
allocated | 2010-06-08 | 8893d84359bd… |
| 173.249.128.0 – 173.249.143.255 | 4,096 | US |
allocated | 2010-06-08 | 19f3a8e2a0d9… |
| 173.250.160.0 – 173.250.191.255 | 8,192 | US |
allocated | 2010-06-08 | 9bb82a07be77… |
| 173.250.224.0 – 173.250.231.255 | 2,048 | US |
allocated | 2010-06-08 | 9bb82a07be77… |
| 199.255.236.0 – 199.255.239.255 | 1,024 | US |
allocated | 2010-06-08 | ee4a1e8c701b… |
| 199.255.240.0 – 199.255.243.255 | 1,024 | US |
allocated | 2010-06-08 | 0572f733a7b9… |
| 216.251.192.0 – 216.251.207.255 | 4,096 | US |
allocated | 2010-06-08 | b1da36e418e3… |
| 173.243.240.0 – 173.243.255.255 | 4,096 | US |
allocated | 2010-06-07 | d538268083a4… |
| 199.255.228.0 – 199.255.231.255 | 1,024 | US |
allocated | 2010-06-07 | 14ce6bf3e72d… |
| 199.255.232.0 – 199.255.235.255 | 1,024 | US |
allocated | 2010-06-07 | de94a62ce8f9… |
| 173.243.192.0 – 173.243.207.255 | 4,096 |  CA |
allocated | 2010-06-04 | a2e1bb6f40a4… |
| 173.243.208.0 – 173.243.223.255 | 4,096 | US |
allocated | 2010-06-04 | e62c35503322… |
| 199.255.204.0 – 199.255.207.255 | 1,024 | US |
allocated | 2010-06-04 | 2394679019c7… |
| 173.243.144.0 – 173.243.159.255 | 4,096 | US |
allocated | 2010-06-03 | 7744520fa5e7… |
| 173.243.160.0 – 173.243.175.255 | 4,096 | US |
allocated | 2010-06-03 | f57036a35d7c… |
| 173.243.176.0 – 173.243.191.255 | 4,096 | US |
allocated | 2010-06-03 | 8b8f3fdb579c… |
| 199.253.249.0 – 199.253.249.255 | 256 | US |
allocated | 2010-06-03 | 7779723493a1… |
| 199.255.200.0 – 199.255.203.255 | 1,024 | US |
allocated | 2010-06-03 | d05b47845353… |
| 199.255.208.0 – 199.255.215.255 | 2,048 | US |
allocated | 2010-06-03 | c1d2b62eed6a… |
| 173.243.112.0 – 173.243.127.255 | 4,096 | US |
allocated | 2010-06-02 | 4ce30611f900… |
| 173.246.32.0 – 173.246.63.255 | 8,192 | US |
allocated | 2010-06-02 | c0fd212b13d9… |
| 199.255.192.0 – 199.255.195.255 | 1,024 | US |
allocated | 2010-06-02 | 2d1b81482b74… |
| 199.255.196.0 – 199.255.199.255 | 1,024 | US |
allocated | 2010-06-02 | 9504b501ac24… |
| 173.243.96.0 – 173.243.111.255 | 4,096 |  NL |
allocated | 2010-06-01 | 9e0284db2194… |
| 173.249.64.0 – 173.249.79.255 | 4,096 | US |
allocated | 2010-06-01 | 86f2f6199833… |
| 173.250.0.0 – 173.250.127.255 | 32,768 | CA |
allocated | 2010-06-01 | c910c9938d1e… |
| 199.255.176.0 – 199.255.183.255 | 2,048 | US |
allocated | 2010-06-01 | 38cfc3fdfa21… |
| 199.255.184.0 – 199.255.187.255 | 1,024 | US |
allocated | 2010-06-01 | a155c2c3b4c7… |
| 199.255.188.0 – 199.255.191.255 | 1,024 | US |
allocated | 2010-06-01 | a44bb983751b… |
| 173.246.0.0 – 173.246.31.255 | 8,192 | CA |
allocated | 2010-05-28 | 04cd1b128d33… |
| 199.255.164.0 – 199.255.167.255 | 1,024 | US |
allocated | 2010-05-28 | 5148b10b1889… |
| 199.255.168.0 – 199.255.175.255 | 2,048 | US |
allocated | 2010-05-28 | 74f99ce72e08… |
| 173.243.80.0 – 173.243.95.255 | 4,096 |  PR |
allocated | 2010-05-27 | 0162b2e2866a… |
| 199.255.156.0 – 199.255.159.255 | 1,024 | US |
allocated | 2010-05-27 | 45410029dc4f… |
| 173.243.64.0 – 173.243.79.255 | 4,096 | US |
allocated | 2010-05-26 | afc9f9341313… |
| 173.245.224.0 – 173.245.239.255 | 4,096 | US |
allocated | 2010-05-26 | 2ca0a6c82d35… |
| 199.19.0.0 – 199.19.7.255 | 2,048 | US |
allocated | 2010-05-26 | ace55d4dc090… |
| 199.255.152.0 – 199.255.155.255 | 1,024 | US |
allocated | 2010-05-26 | b9e47a3b2d1d… |
| 199.255.144.0 – 199.255.147.255 | 1,024 | US |
allocated | 2010-05-25 | d62293e18d17… |
| 184.107.0.0 – 184.107.255.255 | 65,536 | CA |
allocated | 2010-05-24 | 6ea4dd5a36c2… |
| 199.255.140.0 – 199.255.140.255 | 256 | US |
allocated | 2010-05-24 | baf3766c3fa7… |
| 199.255.142.0 – 199.255.142.255 | 256 | US |
allocated | 2010-05-24 | baf3766c3fa7… |
| 173.243.48.0 – 173.243.63.255 | 4,096 | CA |
allocated | 2010-05-21 | a2eba22c6c42… |
| 173.245.202.0 – 173.245.203.255 | 512 | US |
allocated | 2010-05-21 | bfdc6dbcfa0b… |
| 173.245.206.0 – 173.245.207.255 | 512 | US |
allocated | 2010-05-21 | bfdc6dbcfa0b… |
| 173.245.209.0 – 173.245.209.255 | 256 | US |
allocated | 2010-05-21 | bfdc6dbcfa0b… |
| 173.245.211.0 – 173.245.211.255 | 256 | US |
allocated | 2010-05-21 | bfdc6dbcfa0b… |
| 173.245.217.0 – 173.245.217.255 | 256 | US |
allocated | 2010-05-21 | bfdc6dbcfa0b… |
| 173.245.219.0 – 173.245.219.255 | 256 | US |
allocated | 2010-05-21 | bfdc6dbcfa0b… |
| 184.106.0.0 – 184.106.31.255 | 8,192 | US |
allocated | 2010-05-21 | c66e83fbb76c… |
| 184.106.32.0 – 184.106.47.255 | 4,096 | US |
allocated | 2010-05-21 | c66e83fbb76c… |
| 184.106.48.0 – 184.106.51.255 | 1,024 | US |
allocated | 2010-05-21 | c66e83fbb76c… |
| 184.106.52.0 – 184.106.53.255 | 512 | US |
allocated | 2010-05-21 | c66e83fbb76c… |
| 184.106.54.0 – 184.106.54.255 | 256 | US |
allocated | 2010-05-21 | c66e83fbb76c… |
| 184.106.55.0 – 184.106.55.255 | 256 | US |
allocated | 2010-05-21 | d8f072014ca8… |
| 184.106.56.0 – 184.106.63.255 | 2,048 | US |
allocated | 2010-05-21 | c66e83fbb76c… |
| 184.106.64.0 – 184.106.127.255 | 16,384 | US |
allocated | 2010-05-21 | c66e83fbb76c… |
| 184.106.128.0 – 184.106.255.255 | 32,768 | US |
allocated | 2010-05-21 | c66e83fbb76c… |
| 199.255.136.0 – 199.255.139.255 | 1,024 | US |
allocated | 2010-05-21 | 45410029dc4f… |
| 173.245.128.0 – 173.245.143.255 | 4,096 | US |
allocated | 2010-05-20 | f45e1ba9b9df… |
| 173.245.168.0 – 173.245.175.255 | 2,048 | US |
allocated | 2010-05-20 | b4a3ba76e1f3… |
| 173.245.176.0 – 173.245.191.255 | 4,096 | US |
allocated | 2010-05-20 | b4a3ba76e1f3… |
| 199.255.124.0 – 199.255.127.255 | 1,024 | US |
allocated | 2010-05-20 | 209f86c1de13… |
| 199.255.128.0 – 199.255.135.255 | 2,048 | US |
allocated | 2010-05-19 | 5fa2161e61e3… |
| 173.243.0.0 – 173.243.15.255 | 4,096 | US |
allocated | 2010-05-18 | f4eeba15c196… |
| 173.243.16.0 – 173.243.31.255 | 4,096 | US |
allocated | 2010-05-18 | 56be87727e45… |
| 173.245.96.0 – 173.245.127.255 | 8,192 | US |
allocated | 2010-05-18 | 11605ea9b000… |
| 199.255.104.0 – 199.255.111.255 | 2,048 | US |
allocated | 2010-05-18 | 1a58ea4dd892… |
| 199.255.116.0 – 199.255.119.255 | 1,024 | PR |
allocated | 2010-05-18 | 6fc639fc8504… |
| 199.255.120.0 – 199.255.123.255 | 1,024 | US |
allocated | 2010-05-18 | 1776d53b8918… |
| 24.49.176.0 – 24.49.183.255 | 2,048 | US |
allocated | 2010-05-17 | 99563ca971c0… |
| 24.49.184.0 – 24.49.187.255 | 1,024 | US |
allocated | 2010-05-17 | 99563ca971c0… |
| 24.49.188.0 – 24.49.188.255 | 256 | US |
allocated | 2010-05-17 | 99563ca971c0… |
| 199.255.84.0 – 199.255.87.255 | 1,024 | US |
allocated | 2010-05-17 | 9401c7d3032d… |
| 199.255.88.0 – 199.255.95.255 | 2,048 | US |
allocated | 2010-05-17 | 1e3aaefbcd36… |
| 173.237.128.0 – 173.237.191.255 | 16,384 | US |
allocated | 2010-05-14 | 6e048190eb9a… |
| 173.242.240.0 – 173.242.255.255 | 4,096 | US |
allocated | 2010-05-14 | 099b3cf1c0cd… |
| 184.176.0.0 – 184.191.255.255 | 1,048,576 | US |
allocated | 2010-05-14 | 4cad11d18482… |
| 199.255.64.0 – 199.255.71.255 | 2,048 | US |
allocated | 2010-05-14 | 2cd5fcb30974… |
| 199.255.80.0 – 199.255.83.255 | 1,024 | US |
allocated | 2010-05-14 | 2c0e13309480… |
| 173.242.192.0 – 173.242.207.255 | 4,096 | US |
allocated | 2010-05-13 | 320625f275e7… |
| 173.242.224.0 – 173.242.239.255 | 4,096 | US |
allocated | 2010-05-13 | 3fb75eb3b63f… |
| 173.245.64.0 – 173.245.95.255 | 8,192 | US |
allocated | 2010-05-13 | 57d8f1a5b897… |
| 173.248.128.0 – 173.248.191.255 | 16,384 | US |
allocated | 2010-05-13 | d1af1622e04e… |
| 173.245.32.0 – 173.245.47.255 | 4,096 | US |
allocated | 2010-05-12 | d4ed5c8f231f… |
| 184.95.0.0 – 184.95.15.255 | 4,096 | US |
allocated | 2010-05-12 | 30c7754a1a3e… |
| 199.255.44.0 – 199.255.47.255 | 1,024 | US |
allocated | 2010-05-12 | a20724ed852c… |
| 173.245.0.0 – 173.245.31.255 | 8,192 | US |
allocated | 2010-05-11 | 763d14c167f8… |
| 199.255.24.0 – 199.255.27.255 | 1,024 | US |
allocated | 2010-05-11 | f3da36c44a30… |
| 199.255.28.0 – 199.255.31.255 | 1,024 | CA |
allocated | 2010-05-11 | 19a8e90b161c… |
| 199.255.32.0 – 199.255.35.255 | 1,024 | US |
allocated | 2010-05-11 | 24872777a723… |
| 199.255.36.0 – 199.255.39.255 | 1,024 | US |
allocated | 2010-05-11 | 5722f09d22ce… |
| 199.255.40.0 – 199.255.43.255 | 1,024 | US |
allocated | 2010-05-11 | d8357b96abbf… |
| 199.255.48.0 – 199.255.55.255 | 2,048 | US |
allocated | 2010-05-11 | 09310525757b… |
| 24.50.192.0 – 24.50.255.255 | 16,384 | US |
allocated | 2010-05-10 | ce33fb2218d7… |
| 173.244.192.0 – 173.244.223.255 | 8,192 | US |
allocated | 2010-05-10 | 87b8f6aa7042… |
| 173.248.64.0 – 173.248.127.255 | 16,384 | US |
allocated | 2010-05-10 | cdb7d42057bd… |
| 184.104.0.0 – 184.105.255.255 | 131,072 | US |
allocated | 2010-05-10 | e2e9e26bea21… |
| 199.255.8.0 – 199.255.11.255 | 1,024 | US |
allocated | 2010-05-10 | ee83a60c20fe… |