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
1,645,590,528
📦
IPv4 networks
76,679
delegated blocks
🧭
IPv6 networks
11,339
delegated blocks
🔗
Autonomous systems
34,020
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 205.166.181.0 – 205.166.181.255 | 256 |  US |
allocated | 2012-02-28 | 0bbe914ebbd9… |
| 100.128.0.0 – 100.255.255.255 | 8,388,608 | US |
allocated | 2012-02-27 | c4fef8e680d3… |
| 108.171.160.0 – 108.171.191.255 | 8,192 | US |
allocated | 2012-02-27 | c66e83fbb76c… |
| 108.175.128.0 – 108.175.143.255 | 4,096 |  CA |
allocated | 2012-02-27 | 5fa5667c0b53… |
| 108.178.0.0 – 108.178.63.255 | 16,384 | US |
allocated | 2012-02-27 | f624e02d3805… |
| 199.114.232.0 – 199.114.235.255 | 1,024 | CA |
allocated | 2012-02-27 | 37cacceb0abe… |
| 199.114.236.0 – 199.114.239.255 | 1,024 | US |
allocated | 2012-02-27 | 1ac42069e121… |
| 205.166.145.0 – 205.166.145.255 | 256 | US |
allocated | 2012-02-27 | ff9ff019bb7c… |
| 205.166.158.0 – 205.166.158.255 | 256 | US |
allocated | 2012-02-27 | f3d824fa1636… |
| 205.166.171.0 – 205.166.171.255 | 256 | US |
allocated | 2012-02-27 | 933e206f3d1a… |
| 205.196.118.0 – 205.196.119.255 | 512 | US |
allocated | 2012-02-27 | 50f022140935… |
| 205.196.166.0 – 205.196.167.255 | 512 | US |
allocated | 2012-02-27 | 25f59a3c7b52… |
| 205.196.202.0 – 205.196.203.255 | 512 | US |
allocated | 2012-02-27 | d8baffefac23… |
| 108.171.128.0 – 108.171.159.255 | 8,192 | US |
allocated | 2012-02-24 | 2478ebd82c24… |
| 136.146.0.0 – 136.147.255.255 | 131,072 | US |
allocated | 2012-02-24 | 9504b501ac24… |
| 199.114.224.0 – 199.114.227.255 | 1,024 | US |
allocated | 2012-02-24 | 80ca3f56fa8c… |
| 199.114.228.0 – 199.114.231.255 | 1,024 | US |
allocated | 2012-02-24 | 302960e84b60… |
| 108.175.80.0 – 108.175.95.255 | 4,096 | CA |
allocated | 2012-02-23 | 7de51f8320f6… |
| 108.175.96.0 – 108.175.111.255 | 4,096 | US |
allocated | 2012-02-23 | 7b57b4837269… |
| 199.114.208.0 – 199.114.211.255 | 1,024 | US |
allocated | 2012-02-23 | adc8b004b305… |
| 199.114.212.0 – 199.114.215.255 | 1,024 | US |
allocated | 2012-02-23 | e913df62eb6d… |
| 199.114.216.0 – 199.114.223.255 | 2,048 | US |
allocated | 2012-02-23 | 1260d6c06539… |
| 205.166.80.0 – 205.166.80.255 | 256 | US |
allocated | 2012-02-23 | 71c0734ec0a6… |
| 108.171.96.0 – 108.171.127.255 | 8,192 | US |
allocated | 2012-02-22 | f3cb8e58b641… |
| 108.175.64.0 – 108.175.79.255 | 4,096 | US |
allocated | 2012-02-22 | cbf7365dac72… |
| 199.102.92.0 – 199.102.95.255 | 1,024 | US |
allocated | 2012-02-22 | a4d064d6541a… |
| 199.102.96.0 – 199.102.103.255 | 2,048 | CA |
allocated | 2012-02-22 | d230ccaa82cf… |
| 199.102.104.0 – 199.102.107.255 | 1,024 | US |
allocated | 2012-02-22 | 6ac9e8ec86fb… |
| 199.102.112.0 – 199.102.119.255 | 2,048 | US |
allocated | 2012-02-22 | 34d342be0361… |
| 23.28.96.0 – 23.28.127.255 | 8,192 | US |
allocated | 2012-02-21 | e9f843549cbf… |
| 23.28.128.0 – 23.28.255.255 | 32,768 | US |
allocated | 2012-02-21 | e9f843549cbf… |
| 199.102.76.0 – 199.102.79.255 | 1,024 | US |
allocated | 2012-02-21 | 65016ba39c26… |
| 199.102.80.0 – 199.102.87.255 | 2,048 | US |
allocated | 2012-02-21 | 6b641bc3edc2… |
| 199.102.88.0 – 199.102.91.255 | 1,024 | US |
allocated | 2012-02-21 | aa5386f26f58… |
| 205.159.255.0 – 205.159.255.255 | 256 | US |
allocated | 2012-02-21 | ed644108ded4… |
| 205.196.78.0 – 205.196.79.255 | 512 | US |
allocated | 2012-02-21 | e166feb36485… |
| 108.171.64.0 – 108.171.95.255 | 8,192 | CA |
allocated | 2012-02-17 | df04ba7e5e16… |
| 128.136.0.0 – 128.136.255.255 | 65,536 | US |
allocated | 2012-02-17 | 68ddf6a7f69b… |
| 199.102.60.0 – 199.102.63.255 | 1,024 | US |
allocated | 2012-02-17 | 0204d0078e12… |
| 199.102.64.0 – 199.102.67.255 | 1,024 | US |
allocated | 2012-02-17 | 4ce30611f900… |
| 199.102.68.0 – 199.102.71.255 | 1,024 | US |
allocated | 2012-02-17 | b7eb5254095a… |
| 205.159.128.0 – 205.159.128.255 | 256 | US |
allocated | 2012-02-17 | 4b201e83eaa0… |
| 205.159.133.0 – 205.159.133.255 | 256 | US |
allocated | 2012-02-17 | 501b1d6d013b… |
| 205.159.250.0 – 205.159.250.255 | 256 | US |
allocated | 2012-02-17 | f4550e3e8716… |
| 108.175.32.0 – 108.175.47.255 | 4,096 | US |
allocated | 2012-02-16 | c7fae75a7e69… |
| 108.175.112.0 – 108.175.127.255 | 4,096 | US |
allocated | 2012-02-16 | bc3f9c2e4687… |
| 199.102.56.0 – 199.102.59.255 | 1,024 | US |
allocated | 2012-02-16 | 7580b444758d… |
| 199.101.116.0 – 199.101.119.255 | 1,024 | US |
allocated | 2012-02-15 | 206b36694dee… |
| 199.101.120.0 – 199.101.127.255 | 2,048 | US |
allocated | 2012-02-15 | ae43a4dd7f0d… |
| 199.102.48.0 – 199.102.51.255 | 1,024 | US |
allocated | 2012-02-15 | 35d069cb49b8… |
| 199.102.52.0 – 199.102.55.255 | 1,024 | US |
allocated | 2012-02-15 | 3ea2782e2d7f… |
| 205.196.12.0 – 205.196.13.255 | 512 | US |
allocated | 2012-02-15 | 20ed5c4db821… |
| 205.196.70.0 – 205.196.70.255 | 256 | US |
allocated | 2012-02-15 | 581b4ab1ec15… |
| 108.169.192.0 – 108.169.255.255 | 16,384 | US |
allocated | 2012-02-14 | 88a63c2539ed… |
| 199.101.104.0 – 199.101.107.255 | 1,024 | US |
allocated | 2012-02-14 | 9a62f6aa683c… |
| 199.101.112.0 – 199.101.115.255 | 1,024 |  IL |
allocated | 2012-02-14 | 39128ed8d7e3… |
| 23.27.0.0 – 23.27.255.255 | 65,536 | US |
allocated | 2012-02-13 | 0fdeb4020d94… |
| 65.98.148.0 – 65.98.149.255 | 512 | US |
allocated | 2012-02-13 | f1b92b3419bc… |
| 65.98.150.0 – 65.98.150.255 | 256 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 65.98.151.0 – 65.98.151.255 | 256 | US |
allocated | 2012-02-13 | f1b92b3419bc… |
| 65.98.152.0 – 65.98.153.255 | 512 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 65.98.154.0 – 65.98.154.255 | 256 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 65.98.155.0 – 65.98.155.255 | 256 | US |
allocated | 2012-02-13 | f1b92b3419bc… |
| 65.98.156.0 – 65.98.159.255 | 1,024 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 65.98.160.0 – 65.98.175.255 | 4,096 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 65.98.176.0 – 65.98.176.255 | 256 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 65.98.177.0 – 65.98.177.255 | 256 | US |
allocated | 2012-02-13 | f1b92b3419bc… |
| 65.98.178.0 – 65.98.179.255 | 512 | US |
allocated | 2012-02-13 | f1b92b3419bc… |
| 65.98.180.0 – 65.98.183.255 | 1,024 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 65.98.184.0 – 65.98.191.255 | 2,048 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 65.98.192.0 – 65.98.223.255 | 8,192 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 65.98.224.0 – 65.98.231.255 | 2,048 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 65.98.232.0 – 65.98.239.255 | 2,048 | US |
allocated | 2012-02-13 | f1b92b3419bc… |
| 65.98.240.0 – 65.98.240.255 | 256 | US |
allocated | 2012-02-13 | f1b92b3419bc… |
| 65.98.241.0 – 65.98.241.255 | 256 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 65.98.242.0 – 65.98.243.255 | 512 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 65.98.244.0 – 65.98.247.255 | 1,024 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 65.98.248.0 – 65.98.251.255 | 1,024 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 65.98.252.0 – 65.98.252.255 | 256 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 65.98.253.0 – 65.98.253.255 | 256 | US |
allocated | 2012-02-13 | f1b92b3419bc… |
| 65.98.254.0 – 65.98.255.255 | 512 | US |
allocated | 2012-02-13 | f1b92b3419bc… |
| 66.81.2.0 – 66.81.3.255 | 512 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 66.81.4.0 – 66.81.5.255 | 512 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 66.81.6.0 – 66.81.6.255 | 256 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 66.81.7.0 – 66.81.7.255 | 256 | US |
allocated | 2012-02-13 | f1b92b3419bc… |
| 66.81.8.0 – 66.81.8.255 | 256 | US |
allocated | 2012-02-13 | f1b92b3419bc… |
| 66.81.9.0 – 66.81.9.255 | 256 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 66.81.10.0 – 66.81.11.255 | 512 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 66.81.12.0 – 66.81.13.255 | 512 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 66.81.14.0 – 66.81.14.255 | 256 | US |
allocated | 2012-02-13 | f1b92b3419bc… |
| 66.81.15.0 – 66.81.15.255 | 256 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 66.81.16.0 – 66.81.23.255 | 2,048 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 66.81.24.0 – 66.81.27.255 | 1,024 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 66.81.28.0 – 66.81.29.255 | 512 | US |
allocated | 2012-02-13 | f1b92b3419bc… |
| 66.81.30.0 – 66.81.31.255 | 512 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 66.81.32.0 – 66.81.35.255 | 1,024 | US |
allocated | 2012-02-13 | f1b92b3419bc… |
| 66.81.36.0 – 66.81.37.255 | 512 | US |
allocated | 2012-02-13 | f1b92b3419bc… |
| 66.81.38.0 – 66.81.39.255 | 512 | US |
allocated | 2012-02-13 | 12e60256aff4… |
| 66.81.40.0 – 66.81.47.255 | 2,048 | US |
allocated | 2012-02-13 | f1b92b3419bc… |
| 66.81.48.0 – 66.81.49.255 | 512 | US |
allocated | 2012-02-13 | 12e60256aff4… |