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
1,645,629,184
📦
IPv4 networks
76,691
delegated blocks
🧭
IPv6 networks
11,348
delegated blocks
🔗
Autonomous systems
34,039
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 192.131.245.0 – 192.131.245.255 | 256 |  US |
allocated | 1991-10-31 | cb4d800a575a… |
| 192.131.246.0 – 192.131.246.255 | 256 | US |
allocated | 1991-10-31 | 0827c9ea6138… |
| 192.131.247.0 – 192.131.247.255 | 256 | US |
allocated | 1991-10-31 | 45fe880b68a8… |
| 192.131.250.0 – 192.131.250.255 | 256 | US |
allocated | 1991-10-31 | f9f5213668a7… |
| 192.131.253.0 – 192.131.253.255 | 256 | US |
allocated | 1991-10-31 | 6f1f4884f8cb… |
| 192.133.17.0 – 192.133.17.255 | 256 | US |
allocated | 1991-10-31 | 2fc72c3bfb52… |
| 192.133.18.0 – 192.133.18.255 | 256 | US |
allocated | 1991-10-31 | 6e7fadb2942b… |
| 192.133.19.0 – 192.133.19.255 | 256 | US |
allocated | 1991-10-31 | 46c3ee2fedce… |
| 192.133.20.0 – 192.133.20.255 | 256 | US |
allocated | 1991-10-31 | 53886b899497… |
| 192.133.22.0 – 192.133.22.255 | 256 | US |
allocated | 1991-10-31 | 9d3ef9f2c237… |
| 192.133.23.0 – 192.133.23.255 | 256 | US |
allocated | 1991-10-31 | 21c649b306ec… |
| 192.133.24.0 – 192.133.24.255 | 256 | US |
allocated | 1991-10-31 | fc28499e0e54… |
| 155.1.0.0 – 155.1.255.255 | 65,536 | US |
allocated | 1991-10-30 | ad98f40efa42… |
| 155.3.0.0 – 155.3.255.255 | 65,536 |  CA |
allocated | 1991-10-30 | 4c92d791dd40… |
| 155.10.0.0 – 155.10.255.255 | 65,536 | CA |
allocated | 1991-10-30 | 05f0ae1b8e37… |
| 155.13.0.0 – 155.13.255.255 | 65,536 | US |
allocated | 1991-10-30 | d3e4a601ebd6… |
| 155.14.0.0 – 155.14.255.255 | 65,536 | US |
allocated | 1991-10-30 | 2a72124b4804… |
| 155.15.0.0 – 155.15.255.255 | 65,536 | CA |
allocated | 1991-10-30 | 32a9ebb19b2e… |
| 155.16.0.0 – 155.16.255.255 | 65,536 | US |
allocated | 1991-10-30 | c0596c9d1e12… |
| 155.17.0.0 – 155.17.255.255 | 65,536 | US |
allocated | 1991-10-30 | c0596c9d1e12… |
| 155.31.0.0 – 155.31.255.255 | 65,536 | US |
allocated | 1991-10-30 | 70c5c56ab737… |
| 155.57.0.0 – 155.57.255.255 | 65,536 | US |
allocated | 1991-10-30 | 73bbd84bf262… |
| 155.58.0.0 – 155.58.255.255 | 65,536 | US |
allocated | 1991-10-30 | 766f3ed35a23… |
| 155.61.0.0 – 155.61.255.255 | 65,536 | US |
allocated | 1991-10-30 | 161fb0fc33bc… |
| 155.68.0.0 – 155.68.255.255 | 65,536 | US |
allocated | 1991-10-30 | ec2b433948be… |
| 155.70.0.0 – 155.70.255.255 | 65,536 | US |
allocated | 1991-10-30 | cdb7d42057bd… |
| 155.72.0.0 – 155.72.255.255 | 65,536 | US |
allocated | 1991-10-30 | eca89f920466… |
| 155.199.0.0 – 155.199.255.255 | 65,536 | US |
allocated | 1991-10-30 | ad98f40efa42… |
| 155.200.0.0 – 155.200.255.255 | 65,536 | US |
allocated | 1991-10-30 | ad98f40efa42… |
| 156.3.0.0 – 156.3.255.255 | 65,536 | US |
allocated | 1991-10-30 | 0501330fca76… |
| 192.131.2.0 – 192.131.2.255 | 256 | US |
allocated | 1991-10-30 | fef41f4539ca… |
| 192.131.3.0 – 192.131.3.255 | 256 | US |
allocated | 1991-10-30 | fef41f4539ca… |
| 192.131.6.0 – 192.131.6.255 | 256 | US |
allocated | 1991-10-30 | 125c7b2e24d3… |
| 192.131.7.0 – 192.131.7.255 | 256 | US |
allocated | 1991-10-30 | 60b04564b432… |
| 192.131.8.0 – 192.131.8.255 | 256 | US |
allocated | 1991-10-30 | 0692f35ea002… |
| 192.131.9.0 – 192.131.9.255 | 256 | US |
allocated | 1991-10-30 | 321c6de43d40… |
| 192.131.10.0 – 192.131.10.255 | 256 | US |
allocated | 1991-10-30 | 33c212551d8b… |
| 192.131.11.0 – 192.131.11.255 | 256 | US |
allocated | 1991-10-30 | 33c212551d8b… |
| 192.131.12.0 – 192.131.12.255 | 256 | US |
allocated | 1991-10-30 | 8607663758b6… |
| 192.131.14.0 – 192.131.14.255 | 256 | US |
allocated | 1991-10-30 | f00ec85bfc9b… |
| 192.131.23.0 – 192.131.23.255 | 256 | US |
allocated | 1991-10-30 | 0c7adb1662bc… |
| 192.131.24.0 – 192.131.24.255 | 256 | US |
allocated | 1991-10-30 | e20e8efcdd43… |
| 192.131.31.0 – 192.131.31.255 | 256 | US |
allocated | 1991-10-30 | e79c6a637476… |
| 192.131.77.0 – 192.131.77.255 | 256 | US |
allocated | 1991-10-30 | 6fa4ac2bef37… |
| 192.131.93.0 – 192.131.93.255 | 256 | US |
allocated | 1991-10-30 | 934f274aaf13… |
| 192.131.94.0 – 192.131.94.255 | 256 | CA |
allocated | 1991-10-30 | fb5dff3e9fa0… |
| 192.131.95.0 – 192.131.95.255 | 256 | US |
allocated | 1991-10-30 | f683b1649824… |
| 192.131.97.0 – 192.131.97.255 | 256 | CA |
allocated | 1991-10-30 | 70284f50af46… |
| 192.131.98.0 – 192.131.98.255 | 256 | US |
allocated | 1991-10-30 | cd0fc2ea6ed6… |
| 192.131.99.0 – 192.131.99.255 | 256 | US |
allocated | 1991-10-30 | 66d464bd43aa… |
| 192.131.100.0 – 192.131.100.255 | 256 | US |
allocated | 1991-10-30 | 862ab11f59cd… |
| 192.131.121.0 – 192.131.121.255 | 256 | US |
allocated | 1991-10-30 | 9b0c07216655… |
| 192.131.122.0 – 192.131.122.255 | 256 | US |
allocated | 1991-10-30 | cdb7d42057bd… |
| 192.131.133.0 – 192.131.133.255 | 256 | US |
allocated | 1991-10-30 | 4461031532c9… |
| 192.131.135.0 – 192.131.135.255 | 256 | US |
allocated | 1991-10-30 | e92c31571121… |
| 192.131.143.0 – 192.131.143.255 | 256 | US |
allocated | 1991-10-30 | cf56228a8ba5… |
| 192.131.144.0 – 192.131.144.255 | 256 | US |
allocated | 1991-10-30 | 32fcc5a2a0a8… |
| 192.131.154.0 – 192.131.154.255 | 256 | US |
allocated | 1991-10-30 | 0fa103b27e92… |
| 192.131.155.0 – 192.131.155.255 | 256 | US |
allocated | 1991-10-30 | dfb25421cad4… |
| 192.131.239.0 – 192.131.239.255 | 256 | US |
allocated | 1991-10-30 | 8b4351f49129… |
| 192.133.7.0 – 192.133.7.255 | 256 | US |
allocated | 1991-10-30 | 32704d4d397d… |
| 192.133.8.0 – 192.133.8.255 | 256 | US |
allocated | 1991-10-30 | 88b8b78683be… |
| 192.133.9.0 – 192.133.9.255 | 256 | US |
allocated | 1991-10-30 | 24965ba49d53… |
| 192.133.11.0 – 192.133.11.255 | 256 | US |
allocated | 1991-10-30 | b8e4bfc57c91… |
| 192.133.12.0 – 192.133.12.255 | 256 | US |
allocated | 1991-10-30 | bad3fe472700… |
| 155.27.0.0 – 155.27.255.255 | 65,536 | US |
allocated | 1991-10-29 | 45fe880b68a8… |
| 155.28.0.0 – 155.28.255.255 | 65,536 | US |
allocated | 1991-10-29 | 45fe880b68a8… |
| 155.29.0.0 – 155.29.255.255 | 65,536 | US |
allocated | 1991-10-29 | 45fe880b68a8… |
| 155.30.0.0 – 155.30.255.255 | 65,536 | US |
allocated | 1991-10-29 | 45fe880b68a8… |
| 156.1.0.0 – 156.1.255.255 | 65,536 | US |
allocated | 1991-10-29 | 98deb2c35819… |
| 192.131.78.0 – 192.131.78.255 | 256 | US |
allocated | 1991-10-29 | 11baf14329ed… |
| 192.133.5.0 – 192.133.5.255 | 256 | US |
allocated | 1991-10-29 | 45fe880b68a8… |
| 155.19.0.0 – 155.19.255.255 | 65,536 | US |
allocated | 1991-10-28 | 45fe880b68a8… |
| 155.20.0.0 – 155.20.255.255 | 65,536 | US |
allocated | 1991-10-28 | 45fe880b68a8… |
| 155.21.0.0 – 155.21.255.255 | 65,536 | US |
allocated | 1991-10-28 | 45fe880b68a8… |
| 155.22.0.0 – 155.22.255.255 | 65,536 | US |
allocated | 1991-10-28 | 45fe880b68a8… |
| 155.23.0.0 – 155.23.255.255 | 65,536 | US |
allocated | 1991-10-28 | 45fe880b68a8… |
| 155.24.0.0 – 155.24.255.255 | 65,536 | US |
allocated | 1991-10-28 | 45fe880b68a8… |
| 155.25.0.0 – 155.25.255.255 | 65,536 | US |
allocated | 1991-10-28 | 45fe880b68a8… |
| 155.26.0.0 – 155.26.255.255 | 65,536 | US |
allocated | 1991-10-28 | 45fe880b68a8… |
| 192.131.123.0 – 192.131.123.255 | 256 | US |
allocated | 1991-10-28 | 18a5a02bdaba… |
| 192.131.125.0 – 192.131.125.255 | 256 | US |
allocated | 1991-10-28 | 0b4c396f0b41… |
| 192.131.126.0 – 192.131.126.255 | 256 | US |
allocated | 1991-10-28 | e7258987463f… |
| 192.131.127.0 – 192.131.127.255 | 256 | US |
allocated | 1991-10-28 | 2627037a004b… |
| 192.131.129.0 – 192.131.129.255 | 256 | US |
allocated | 1991-10-28 | c37ee7de609f… |
| 192.131.130.0 – 192.131.130.255 | 256 | US |
allocated | 1991-10-28 | 62e08e3df930… |
| 192.131.131.0 – 192.131.131.255 | 256 | US |
allocated | 1991-10-28 | 969c5f0ea68b… |
| 155.18.0.0 – 155.18.255.255 | 65,536 | US |
allocated | 1991-10-21 | 45fe880b68a8… |
| 192.131.22.0 – 192.131.22.255 | 256 | US |
allocated | 1991-10-15 | ffd42516f83a… |
| 155.2.0.0 – 155.2.127.255 | 32,768 | US |
allocated | 1991-10-10 | e938362715db… |
| 152.228.0.0 – 152.228.31.255 | 8,192 | US |
allocated | 1991-09-30 | 5f671d19f68f… |
| 152.228.96.0 – 152.228.127.255 | 8,192 | US |
allocated | 1991-09-30 | 5f671d19f68f… |
| 153.113.0.0 – 153.113.255.255 | 65,536 | US |
allocated | 1991-09-30 | a7532b804d10… |
| 153.114.0.0 – 153.114.255.255 | 65,536 | US |
allocated | 1991-09-30 | e220ed812a4c… |
| 192.129.88.0 – 192.129.88.255 | 256 | US |
allocated | 1991-09-30 | 15116bcd5901… |
| 192.129.100.0 – 192.129.100.255 | 256 | US |
allocated | 1991-09-30 | 947f01d3e06d… |
| 192.129.101.0 – 192.129.101.255 | 256 | US |
allocated | 1991-09-30 | acd8ae27f732… |
| 192.129.102.0 – 192.129.102.255 | 256 | US |
allocated | 1991-09-30 | acd8ae27f732… |
| 192.129.103.0 – 192.129.103.255 | 256 | US |
allocated | 1991-09-30 | acd8ae27f732… |
| 192.129.104.0 – 192.129.104.255 | 256 | US |
allocated | 1991-09-30 | acd8ae27f732… |