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
1,645,582,848
📦
IPv4 networks
76,670
delegated blocks
🧭
IPv6 networks
11,332
delegated blocks
🔗
Autonomous systems
34,007
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 199.4.150.0 – 199.4.150.255 | 256 |  US |
allocated | 1993-12-07 | 38e2778817a0… |
| 199.4.152.0 – 199.4.152.255 | 256 | US |
allocated | 1993-12-07 | 55940c67e181… |
| 199.4.153.0 – 199.4.153.255 | 256 | US |
allocated | 1993-12-07 | fafd9705bfc8… |
| 199.4.154.0 – 199.4.155.255 | 512 | US |
allocated | 1993-12-07 | fafd9705bfc8… |
| 199.4.156.0 – 199.4.156.255 | 256 | US |
allocated | 1993-12-07 | 12979b089e8d… |
| 199.4.157.0 – 199.4.157.255 | 256 | US |
allocated | 1993-12-07 | 9e46ab47277f… |
| 199.4.159.0 – 199.4.159.255 | 256 | US |
allocated | 1993-12-07 | b004b3ecde24… |
| 199.4.160.0 – 199.4.160.255 | 256 | US |
allocated | 1993-12-07 | b004b3ecde24… |
| 199.4.168.0 – 199.4.175.255 | 2,048 | US |
allocated | 1993-12-07 | 4b3e152c829c… |
| 199.4.176.0 – 199.4.179.255 | 1,024 | US |
allocated | 1993-12-07 | 4b3e152c829c… |
| 199.10.114.0 – 199.10.114.255 | 256 | US |
allocated | 1993-12-07 | 45fe880b68a8… |
| 199.10.115.0 – 199.10.115.255 | 256 | US |
allocated | 1993-12-07 | 45fe880b68a8… |
| 199.43.226.0 – 199.43.227.255 | 512 | US |
allocated | 1993-12-07 | 501eb4ea8218… |
| 199.43.228.0 – 199.43.231.255 | 1,024 | US |
allocated | 1993-12-07 | 501eb4ea8218… |
| 199.43.232.0 – 199.43.235.255 | 1,024 | US |
allocated | 1993-12-07 | 501eb4ea8218… |
| 199.43.236.0 – 199.43.237.255 | 512 | US |
allocated | 1993-12-07 | 501eb4ea8218… |
| 199.43.238.0 – 199.43.239.255 | 512 | US |
allocated | 1993-12-07 | f9c1ec8ce366… |
| 199.43.240.0 – 199.43.241.255 | 512 | US |
allocated | 1993-12-07 | f9c1ec8ce366… |
| 199.43.242.0 – 199.43.242.255 | 256 | US |
allocated | 1993-12-07 | f9c1ec8ce366… |
| 199.43.243.0 – 199.43.243.255 | 256 |  CA |
allocated | 1993-12-07 | d45bc32a39d3… |
| 199.43.244.0 – 199.43.245.255 | 512 | CA |
allocated | 1993-12-07 | d45bc32a39d3… |
| 199.81.0.0 – 199.81.255.255 | 65,536 | US |
allocated | 1993-12-07 | aca0d080228b… |
| 199.82.0.0 – 199.82.255.255 | 65,536 | US |
allocated | 1993-12-07 | aca0d080228b… |
| 199.83.16.0 – 199.83.23.255 | 2,048 | US |
allocated | 1993-12-07 | d4da89381a8d… |
| 199.83.24.0 – 199.83.24.255 | 256 | US |
allocated | 1993-12-07 | d4da89381a8d… |
| 166.108.32.0 – 166.108.63.255 | 8,192 | US |
allocated | 1993-12-06 | dd0a4ad90e6d… |
| 166.109.0.0 – 166.109.255.255 | 65,536 | US |
allocated | 1993-12-06 | 92997f698d6c… |
| 192.172.21.0 – 192.172.21.255 | 256 | US |
allocated | 1993-12-06 | 45fe880b68a8… |
| 192.172.22.0 – 192.172.23.255 | 512 | US |
allocated | 1993-12-06 | 45fe880b68a8… |
| 192.172.24.0 – 192.172.31.255 | 2,048 | US |
allocated | 1993-12-06 | 45fe880b68a8… |
| 192.172.32.0 – 192.172.63.255 | 8,192 | US |
allocated | 1993-12-06 | 45fe880b68a8… |
| 192.172.64.0 – 192.172.127.255 | 16,384 | US |
allocated | 1993-12-06 | 45fe880b68a8… |
| 192.172.128.0 – 192.172.191.255 | 16,384 | US |
allocated | 1993-12-06 | 45fe880b68a8… |
| 192.172.192.0 – 192.172.207.255 | 4,096 | US |
allocated | 1993-12-06 | 45fe880b68a8… |
| 192.172.208.0 – 192.172.215.255 | 2,048 | US |
allocated | 1993-12-06 | 45fe880b68a8… |
| 192.172.216.0 – 192.172.219.255 | 1,024 | US |
allocated | 1993-12-06 | 45fe880b68a8… |
| 192.172.220.0 – 192.172.220.255 | 256 | US |
allocated | 1993-12-06 | 45fe880b68a8… |
| 198.162.144.0 – 198.162.151.255 | 2,048 | CA |
allocated | 1993-12-06 | c7108b3a909c… |
| 198.162.152.0 – 198.162.153.255 | 512 | CA |
allocated | 1993-12-06 | c7108b3a909c… |
| 198.168.48.0 – 198.168.51.255 | 1,024 | CA |
allocated | 1993-12-06 | 8ab7c34ae6d6… |
| 198.168.52.0 – 198.168.53.255 | 512 | CA |
allocated | 1993-12-06 | 8ab7c34ae6d6… |
| 198.168.234.0 – 198.168.235.255 | 512 | CA |
allocated | 1993-12-06 | 02ae681691ff… |
| 198.168.236.0 – 198.168.239.255 | 1,024 | CA |
allocated | 1993-12-06 | 02ae681691ff… |
| 198.168.240.0 – 198.168.243.255 | 1,024 | CA |
allocated | 1993-12-06 | 02ae681691ff… |
| 198.181.241.0 – 198.181.241.255 | 256 | US |
allocated | 1993-12-06 | 5b11962dcbe8… |
| 198.181.242.0 – 198.181.242.255 | 256 | US |
allocated | 1993-12-06 | 17cf5f7e62f3… |
| 198.181.243.0 – 198.181.243.255 | 256 | US |
allocated | 1993-12-06 | 2b7e3fbc9461… |
| 198.181.244.0 – 198.181.244.255 | 256 | US |
allocated | 1993-12-06 | 0493a5932fcb… |
| 198.181.245.0 – 198.181.245.255 | 256 | US |
allocated | 1993-12-06 | 09a378e91e06… |
| 198.181.246.0 – 198.181.247.255 | 512 | US |
allocated | 1993-12-06 | 09a378e91e06… |
| 198.181.248.0 – 198.181.249.255 | 512 | US |
allocated | 1993-12-06 | 09a378e91e06… |
| 198.235.146.0 – 198.235.147.255 | 512 | CA |
allocated | 1993-12-06 | 2d0ac561f11b… |
| 198.235.148.0 – 198.235.149.255 | 512 | CA |
allocated | 1993-12-06 | 2d0ac561f11b… |
| 199.4.129.0 – 199.4.129.255 | 256 | US |
allocated | 1993-12-06 | 47cb441a8fca… |
| 199.4.130.0 – 199.4.131.255 | 512 | US |
allocated | 1993-12-06 | 6af3dbdad10c… |
| 199.4.132.0 – 199.4.132.255 | 256 | US |
allocated | 1993-12-06 | c2182c92275f… |
| 199.4.133.0 – 199.4.133.255 | 256 | US |
allocated | 1993-12-06 | 4333e50aadb5… |
| 199.4.134.0 – 199.4.134.255 | 256 | US |
allocated | 1993-12-06 | 4333e50aadb5… |
| 199.4.136.0 – 199.4.136.255 | 256 | US |
allocated | 1993-12-06 | f6320a7a8dfb… |
| 199.4.139.0 – 199.4.139.255 | 256 | US |
allocated | 1993-12-06 | 3d92be41a2fa… |
| 199.4.140.0 – 199.4.143.255 | 1,024 | US |
allocated | 1993-12-06 | 1e348f77afa0… |
| 199.4.145.0 – 199.4.145.255 | 256 | US |
allocated | 1993-12-06 | 76bddc28e515… |
| 199.4.146.0 – 199.4.147.255 | 512 | US |
allocated | 1993-12-06 | f318c319385c… |
| 199.4.148.0 – 199.4.148.255 | 256 | US |
allocated | 1993-12-06 | f2ba2dce0328… |
| 199.4.164.0 – 199.4.167.255 | 1,024 | US |
allocated | 1993-12-06 | 113e0a98bf6d… |
| 199.5.64.0 – 199.5.127.255 | 16,384 | US |
allocated | 1993-12-06 | 8ab4822cec44… |
| 199.68.32.0 – 199.68.47.255 | 4,096 | US |
allocated | 1993-12-06 | c61051e3e732… |
| 199.68.48.0 – 199.68.51.255 | 1,024 | US |
allocated | 1993-12-06 | c61051e3e732… |
| 199.68.52.0 – 199.68.52.255 | 256 | US |
allocated | 1993-12-06 | c61051e3e732… |
| 199.73.32.0 – 199.73.39.255 | 2,048 | US |
allocated | 1993-12-06 | 9f14454567a6… |
| 199.73.40.0 – 199.73.41.255 | 512 | US |
allocated | 1993-12-06 | 9f14454567a6… |
| 199.73.128.0 – 199.73.255.255 | 32,768 | US |
allocated | 1993-12-06 | a154379ac984… |
| 199.74.0.0 – 199.74.7.255 | 2,048 | US |
allocated | 1993-12-06 | 5e7685b67be6… |
| 199.74.8.0 – 199.74.11.255 | 1,024 | US |
allocated | 1993-12-06 | 72c8d1827d07… |
| 199.74.12.0 – 199.74.13.255 | 512 | US |
allocated | 1993-12-06 | 72c8d1827d07… |
| 199.74.14.0 – 199.74.14.255 | 256 | US |
allocated | 1993-12-06 | 72c8d1827d07… |
| 199.79.0.0 – 199.79.15.255 | 4,096 | US |
allocated | 1993-12-06 | 8ab4822cec44… |
| 199.80.16.0 – 199.80.23.255 | 2,048 | US |
allocated | 1993-12-06 | ba101049aa00… |
| 199.80.24.0 – 199.80.27.255 | 1,024 | US |
allocated | 1993-12-06 | ba101049aa00… |
| 166.105.0.0 – 166.105.255.255 | 65,536 | US |
allocated | 1993-12-03 | e5e3b9c13678… |
| 166.107.0.0 – 166.107.255.255 | 65,536 | US |
allocated | 1993-12-03 | d8d382893c81… |
| 198.252.231.0 – 198.252.231.255 | 256 | US |
allocated | 1993-12-03 | 5e7685b67be6… |
| 198.252.232.0 – 198.252.232.255 | 256 | US |
allocated | 1993-12-03 | ce6594a832ee… |
| 198.252.233.0 – 198.252.233.255 | 256 | US |
allocated | 1993-12-03 | 8d9ed68cd1bf… |
| 198.252.234.0 – 198.252.234.255 | 256 | US |
allocated | 1993-12-03 | a64dd43ee4f0… |
| 198.252.235.0 – 198.252.235.255 | 256 | US |
allocated | 1993-12-03 | 7183551a923a… |
| 198.252.236.0 – 198.252.236.255 | 256 | US |
allocated | 1993-12-03 | c9763820c3eb… |
| 198.252.237.0 – 198.252.237.255 | 256 | US |
allocated | 1993-12-03 | 48e1197d6962… |
| 198.252.238.0 – 198.252.239.255 | 512 | US |
allocated | 1993-12-03 | c0c75ac1bff5… |
| 198.252.240.0 – 198.252.241.255 | 512 | US |
allocated | 1993-12-03 | c0c75ac1bff5… |
| 198.252.242.0 – 198.252.243.255 | 512 | US |
allocated | 1993-12-03 | bc234ea1ec21… |
| 198.252.244.0 – 198.252.245.255 | 512 | US |
allocated | 1993-12-03 | 3d615c1f857f… |
| 198.252.246.0 – 198.252.247.255 | 512 | US |
allocated | 1993-12-03 | 551a0240298c… |
| 198.252.248.0 – 198.252.249.255 | 512 | US |
allocated | 1993-12-03 | 666daf70d41c… |
| 198.252.250.0 – 198.252.251.255 | 512 | US |
allocated | 1993-12-03 | 0b906c025e2d… |
| 198.252.252.0 – 198.252.253.255 | 512 | US |
allocated | 1993-12-03 | bd129bb6340a… |
| 198.252.254.0 – 198.252.254.255 | 256 | US |
allocated | 1993-12-03 | 6a2bec1ff1c3… |
| 199.4.128.0 – 199.4.128.255 | 256 | US |
allocated | 1993-12-03 | 6a2bec1ff1c3… |
| 199.10.112.0 – 199.10.112.255 | 256 | US |
allocated | 1993-12-03 | 965ac3a28a61… |
| 199.10.113.0 – 199.10.113.255 | 256 | US |
allocated | 1993-12-03 | 95b37edd8dd4… |