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
1,645,624,576
📦
IPv4 networks
76,679
delegated blocks
🧭
IPv6 networks
11,332
delegated blocks
🔗
Autonomous systems
34,019
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 192.59.0.0 – 192.59.255.255 | 65,536 |  US |
allocated | 1989-09-14 | 19bcfab17635… |
| 136.167.0.0 – 136.167.255.255 | 65,536 | US |
allocated | 1989-09-13 | 56cbb6d539aa… |
| 136.178.0.0 – 136.178.255.255 | 65,536 | US |
allocated | 1989-09-13 | 2d90cbf4f78e… |
| 192.40.51.0 – 192.40.51.255 | 256 | US |
allocated | 1989-09-13 | 45fe880b68a8… |
| 192.58.109.0 – 192.58.109.255 | 256 | US |
allocated | 1989-09-13 | e0cd88697e12… |
| 192.58.110.0 – 192.58.110.255 | 256 | US |
allocated | 1989-09-13 | e0cd88697e12… |
| 192.58.111.0 – 192.58.111.255 | 256 | US |
allocated | 1989-09-13 | e0cd88697e12… |
| 192.58.112.0 – 192.58.112.255 | 256 | US |
allocated | 1989-09-13 | e0cd88697e12… |
| 192.58.113.0 – 192.58.113.255 | 256 | US |
allocated | 1989-09-13 | e0cd88697e12… |
| 192.58.114.0 – 192.58.114.255 | 256 | US |
allocated | 1989-09-13 | e0cd88697e12… |
| 192.58.115.0 – 192.58.115.255 | 256 | US |
allocated | 1989-09-13 | e0cd88697e12… |
| 192.58.116.0 – 192.58.116.255 | 256 | US |
allocated | 1989-09-13 | e0cd88697e12… |
| 192.58.117.0 – 192.58.117.255 | 256 | US |
allocated | 1989-09-13 | e0cd88697e12… |
| 192.58.119.0 – 192.58.119.255 | 256 | US |
allocated | 1989-09-13 | 2d90cbf4f78e… |
| 136.150.0.0 – 136.150.255.255 | 65,536 | US |
allocated | 1989-09-12 | dd054087e5ac… |
| 136.174.0.0 – 136.174.255.255 | 65,536 | US |
allocated | 1989-09-12 | fbb228ac4fe8… |
| 136.176.0.0 – 136.176.63.255 | 16,384 | US |
allocated | 1989-09-12 | e9ee1717ee17… |
| 136.176.128.0 – 136.176.255.255 | 32,768 | US |
allocated | 1989-09-12 | e9ee1717ee17… |
| 136.177.0.0 – 136.177.255.255 | 65,536 | US |
allocated | 1989-09-12 | 36461df0e4b1… |
| 192.55.246.0 – 192.55.246.255 | 256 | US |
allocated | 1989-09-12 | 45fe880b68a8… |
| 192.58.36.0 – 192.58.36.255 | 256 | US |
allocated | 1989-09-11 | 2d90cbf4f78e… |
| 192.55.237.0 – 192.55.237.255 | 256 | US |
allocated | 1989-09-08 | 4a67db8a65eb… |
| 192.55.239.0 – 192.55.239.255 | 256 | US |
allocated | 1989-09-08 | 021fc23c99bd… |
| 192.55.240.0 – 192.55.240.255 | 256 | US |
allocated | 1989-09-08 | 45fe880b68a8… |
| 136.171.0.0 – 136.171.255.255 | 65,536 | US |
allocated | 1989-09-05 | 2627037a004b… |
| 192.33.115.0 – 192.33.115.255 | 256 | US |
allocated | 1989-09-05 | c8ea570e1e86… |
| 192.33.116.0 – 192.33.116.255 | 256 | US |
allocated | 1989-09-05 | c8ea570e1e86… |
| 192.55.230.0 – 192.55.230.255 | 256 | US |
allocated | 1989-09-05 | 3e090f752ea1… |
| 192.55.233.0 – 192.55.233.255 | 256 | US |
allocated | 1989-09-05 | b752e4a1339d… |
| 192.55.234.0 – 192.55.234.255 | 256 | US |
allocated | 1989-09-05 | 9559e9706f04… |
| 192.55.236.0 – 192.55.236.255 | 256 | US |
allocated | 1989-09-05 | 36029c89428b… |
| 20.32.0.0 – 20.32.255.255 | 65,536 | US |
allocated | 1989-09-04 | d421c651a84f… |
| 20.132.0.0 – 20.133.255.255 | 131,072 | US |
allocated | 1989-09-04 | d421c651a84f… |
| 20.134.0.0 – 20.134.255.255 | 65,536 | US |
allocated | 1989-09-04 | d421c651a84f… |
| 20.137.0.0 – 20.137.255.255 | 65,536 | US |
allocated | 1989-09-04 | d421c651a84f… |
| 20.138.0.0 – 20.139.255.255 | 131,072 | US |
allocated | 1989-09-04 | d421c651a84f… |
| 20.148.0.0 – 20.149.255.255 | 131,072 | US |
allocated | 1989-09-04 | d421c651a84f… |
| 20.154.0.0 – 20.155.255.255 | 131,072 | US |
allocated | 1989-09-04 | d421c651a84f… |
| 20.156.0.0 – 20.156.255.255 | 65,536 | US |
allocated | 1989-09-04 | d421c651a84f… |
| 136.165.0.0 – 136.165.255.255 | 65,536 | US |
allocated | 1989-09-04 | 55f4a46983b5… |
| 136.166.0.0 – 136.166.255.255 | 65,536 | US |
allocated | 1989-09-04 | 15733c1a6a76… |
| 192.55.226.0 – 192.55.226.255 | 256 | US |
allocated | 1989-09-04 | 7598772461f3… |
| 192.55.227.0 – 192.55.227.255 | 256 | US |
allocated | 1989-09-04 | c69fc9ca7000… |
| 192.55.228.0 – 192.55.228.255 | 256 | US |
allocated | 1989-09-04 | 6b6a68ceff30… |
| 192.55.229.0 – 192.55.229.255 | 256 | US |
allocated | 1989-09-04 | e6fd339d7ca6… |
| 136.149.0.0 – 136.149.255.255 | 65,536 | US |
allocated | 1989-08-31 | 45fe880b68a8… |
| 192.55.222.0 – 192.55.222.255 | 256 | US |
allocated | 1989-08-31 | f21b70fbc417… |
| 192.55.223.0 – 192.55.223.255 | 256 | US |
allocated | 1989-08-31 | acfc4932ac54… |
| 192.55.224.0 – 192.55.224.255 | 256 |  CA |
allocated | 1989-08-31 | c8bae1572cdf… |
| 192.55.213.0 – 192.55.213.255 | 256 | US |
allocated | 1989-08-30 | a39fdd9ce2d6… |
| 192.55.218.0 – 192.55.218.255 | 256 | US |
allocated | 1989-08-30 | 051015aaba29… |
| 136.144.0.0 – 136.144.15.255 | 4,096 | US |
allocated | 1989-08-29 | f85c5b57b3f0… |
| 136.145.0.0 – 136.145.255.255 | 65,536 |  PR |
allocated | 1989-08-29 | ca80d6e1f123… |
| 192.55.214.0 – 192.55.214.255 | 256 | US |
allocated | 1989-08-29 | 54bbd132f0cf… |
| 192.55.221.0 – 192.55.221.255 | 256 | US |
allocated | 1989-08-29 | 0a2cfebb61a8… |
| 192.58.19.0 – 192.58.19.255 | 256 | US |
allocated | 1989-08-29 | 2d90cbf4f78e… |
| 192.58.20.0 – 192.58.23.255 | 1,024 | US |
allocated | 1989-08-29 | 2d90cbf4f78e… |
| 192.58.24.0 – 192.58.27.255 | 1,024 | US |
allocated | 1989-08-29 | 2d90cbf4f78e… |
| 136.141.0.0 – 136.141.255.255 | 65,536 | US |
allocated | 1989-08-24 | a3adae12f224… |
| 136.142.0.0 – 136.142.255.255 | 65,536 | US |
allocated | 1989-08-24 | 48d089d33efb… |
| 192.58.4.0 – 192.58.7.255 | 1,024 | US |
allocated | 1989-08-24 | 45fe880b68a8… |
| 192.58.8.0 – 192.58.8.255 | 256 | US |
allocated | 1989-08-24 | 45fe880b68a8… |
| 134.250.0.0 – 134.250.255.255 | 65,536 | US |
allocated | 1989-08-23 | ba014829356f… |
| 134.252.0.0 – 134.252.255.255 | 65,536 | US |
allocated | 1989-08-23 | 7a6198df10e8… |
| 134.253.0.0 – 134.253.255.255 | 65,536 | US |
allocated | 1989-08-23 | 20cd1178e946… |
| 134.254.0.0 – 134.254.255.255 | 65,536 | US |
allocated | 1989-08-23 | 45fe880b68a8… |
| 192.55.207.0 – 192.55.207.255 | 256 | US |
allocated | 1989-08-23 | ab226dc561ca… |
| 192.55.208.0 – 192.55.208.255 | 256 | US |
allocated | 1989-08-23 | db652b17a021… |
| 192.55.210.0 – 192.55.210.255 | 256 | US |
allocated | 1989-08-23 | 6af3dbdad10c… |
| 192.55.211.0 – 192.55.211.255 | 256 | US |
allocated | 1989-08-23 | 6af3dbdad10c… |
| 134.248.0.0 – 134.248.255.255 | 65,536 | US |
allocated | 1989-08-22 | 2627037a004b… |
| 136.131.0.0 – 136.131.255.255 | 65,536 | US |
allocated | 1989-08-22 | ce4419bfa21e… |
| 136.133.0.0 – 136.133.255.255 | 65,536 | US |
allocated | 1989-08-22 | ce4419bfa21e… |
| 136.143.128.0 – 136.143.129.255 | 512 | US |
allocated | 1989-08-22 | 52019b5202e2… |
| 136.143.130.0 – 136.143.130.255 | 256 | US |
allocated | 1989-08-22 | 52019b5202e2… |
| 136.143.132.0 – 136.143.133.255 | 512 | US |
allocated | 1989-08-22 | 52019b5202e2… |
| 136.143.134.0 – 136.143.134.255 | 256 | US |
allocated | 1989-08-22 | 52019b5202e2… |
| 136.143.194.0 – 136.143.194.255 | 256 | US |
allocated | 1989-08-22 | 52019b5202e2… |
| 136.143.196.0 – 136.143.197.255 | 512 | US |
allocated | 1989-08-22 | 52019b5202e2… |
| 136.143.202.0 – 136.143.203.255 | 512 | US |
allocated | 1989-08-22 | 52019b5202e2… |
| 192.55.201.0 – 192.55.201.255 | 256 | US |
allocated | 1989-08-22 | ade091743c89… |
| 192.55.202.0 – 192.55.202.255 | 256 | US |
allocated | 1989-08-22 | 501eb4ea8218… |
| 192.55.203.0 – 192.55.203.255 | 256 | US |
allocated | 1989-08-22 | 3568de3135ba… |
| 192.55.204.0 – 192.55.204.255 | 256 | US |
allocated | 1989-08-22 | 1c9f8d4a04fb… |
| 192.55.206.0 – 192.55.206.255 | 256 | CA |
allocated | 1989-08-22 | ca0509624257… |
| 192.55.199.0 – 192.55.199.255 | 256 | US |
allocated | 1989-08-17 | 2d90cbf4f78e… |
| 192.55.195.0 – 192.55.195.255 | 256 | US |
allocated | 1989-08-16 | 65903a453626… |
| 192.55.196.0 – 192.55.196.255 | 256 | US |
allocated | 1989-08-16 | 096557f22e74… |
| 192.58.1.0 – 192.58.1.255 | 256 | US |
allocated | 1989-08-16 | 2fc72c3bfb52… |
| 192.58.2.0 – 192.58.2.255 | 256 | US |
allocated | 1989-08-16 | 2fc72c3bfb52… |
| 192.58.3.0 – 192.58.3.255 | 256 | US |
allocated | 1989-08-16 | 2fc72c3bfb52… |
| 134.242.0.0 – 134.242.15.255 | 4,096 | US |
allocated | 1989-08-15 | 76b23aeba674… |
| 134.242.16.0 – 134.242.19.255 | 1,024 | US |
allocated | 1989-08-15 | 76b23aeba674… |
| 134.242.20.0 – 134.242.21.255 | 512 | US |
allocated | 1989-08-15 | 76b23aeba674… |
| 134.242.22.0 – 134.242.22.255 | 256 | US |
allocated | 1989-08-15 | 30b5ca67d880… |
| 134.242.23.0 – 134.242.23.255 | 256 | US |
allocated | 1989-08-15 | 76b23aeba674… |
| 134.242.24.0 – 134.242.24.255 | 256 | US |
allocated | 1989-08-15 | 30b5ca67d880… |
| 134.242.25.0 – 134.242.25.255 | 256 | US |
allocated | 1989-08-15 | 76b23aeba674… |
| 134.242.26.0 – 134.242.27.255 | 512 | US |
allocated | 1989-08-15 | 76b23aeba674… |
| 134.242.28.0 – 134.242.31.255 | 1,024 | US |
allocated | 1989-08-15 | 76b23aeba674… |