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
1.64B
1,644,590,848
📦
IPv4 networks
76,800
delegated blocks
🧭
IPv6 networks
11,469
delegated blocks
🔗
Autonomous systems
34,176
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 204.194.224.0 – 204.194.231.255 | 2,048 |  US |
allocated | 1995-01-20 | 2fc72c3bfb52… |
| 204.227.96.0 – 204.227.127.255 | 8,192 | US |
allocated | 1995-01-20 | 2fc72c3bfb52… |
| 204.233.0.0 – 204.233.255.255 | 65,536 | US |
allocated | 1995-01-20 | 9f14454567a6… |
| 204.234.0.0 – 204.234.255.255 | 65,536 | US |
allocated | 1995-01-20 | a53917198362… |
| 204.235.0.0 – 204.235.15.255 | 4,096 | US |
allocated | 1995-01-20 | 2a53dc9a2632… |
| 204.235.16.0 – 204.235.31.255 | 4,096 | US |
allocated | 1995-01-20 | 723e46008c51… |
| 204.235.48.0 – 204.235.55.255 | 2,048 | US |
allocated | 1995-01-20 | 1643408c8e67… |
| 204.235.56.0 – 204.235.59.255 | 1,024 | US |
allocated | 1995-01-20 | 1643408c8e67… |
| 204.235.64.0 – 204.235.79.255 | 4,096 | US |
allocated | 1995-01-20 | 45fe880b68a8… |
| 204.235.80.0 – 204.235.95.255 | 4,096 | US |
allocated | 1995-01-20 | 278d3043dbec… |
| 199.253.128.0 – 199.253.135.255 | 2,048 | US |
allocated | 1995-01-19 | 67a7110b02b7… |
| 204.76.238.0 – 204.76.239.255 | 512 | US |
allocated | 1995-01-19 | 06b9f44a513c… |
| 204.76.240.0 – 204.76.243.255 | 1,024 | US |
allocated | 1995-01-19 | 06b9f44a513c… |
| 204.76.244.0 – 204.76.245.255 | 512 | US |
allocated | 1995-01-19 | 06b9f44a513c… |
| 204.76.246.0 – 204.76.247.255 | 512 | US |
allocated | 1995-01-19 | a81ab27ead8b… |
| 204.76.248.0 – 204.76.251.255 | 1,024 | US |
allocated | 1995-01-19 | a81ab27ead8b… |
| 204.76.252.0 – 204.76.253.255 | 512 | US |
allocated | 1995-01-19 | a81ab27ead8b… |
| 204.80.161.0 – 204.80.161.255 | 256 | US |
allocated | 1995-01-19 | 71a67f14563e… |
| 204.80.162.0 – 204.80.162.255 | 256 | US |
allocated | 1995-01-19 | a770680ef881… |
| 204.145.202.0 – 204.145.202.255 | 256 | US |
allocated | 1995-01-19 | 55d3274e336a… |
| 204.145.203.0 – 204.145.203.255 | 256 | US |
allocated | 1995-01-19 | 5db3ff6345d9… |
| 204.145.204.0 – 204.145.204.255 | 256 | US |
allocated | 1995-01-19 | 965e9ca560aa… |
| 204.76.230.0 – 204.76.231.255 | 512 | US |
allocated | 1995-01-18 | 8a7b91679c76… |
| 204.76.232.0 – 204.76.235.255 | 1,024 | US |
allocated | 1995-01-18 | 8a7b91679c76… |
| 204.76.236.0 – 204.76.237.255 | 512 | US |
allocated | 1995-01-18 | 8a7b91679c76… |
| 204.145.164.0 – 204.145.164.255 | 256 | US |
allocated | 1995-01-18 | a25aac589968… |
| 204.145.181.0 – 204.145.181.255 | 256 | US |
allocated | 1995-01-18 | 86179997ec43… |
| 204.145.182.0 – 204.145.182.255 | 256 | US |
allocated | 1995-01-18 | 42bf3a90e99f… |
| 204.145.183.0 – 204.145.183.255 | 256 | US |
allocated | 1995-01-18 | 2c9f658de8ed… |
| 204.145.184.0 – 204.145.184.255 | 256 | US |
allocated | 1995-01-18 | eb3beae6fd85… |
| 204.145.185.0 – 204.145.185.255 | 256 | US |
allocated | 1995-01-18 | bb60a15e6e52… |
| 204.145.186.0 – 204.145.186.255 | 256 | US |
allocated | 1995-01-18 | aed5a460ba2e… |
| 204.145.187.0 – 204.145.187.255 | 256 | US |
allocated | 1995-01-18 | 5bbc7fb76a23… |
| 204.145.188.0 – 204.145.188.255 | 256 | US |
allocated | 1995-01-18 | e1e5e22b5494… |
| 204.145.189.0 – 204.145.189.255 | 256 | US |
allocated | 1995-01-18 | 0e63cdb5f5ad… |
| 204.145.190.0 – 204.145.190.255 | 256 | US |
allocated | 1995-01-18 | 0e63cdb5f5ad… |
| 204.145.191.0 – 204.145.191.255 | 256 | US |
allocated | 1995-01-18 | f0300e3f9865… |
| 204.145.192.0 – 204.145.192.255 | 256 | US |
allocated | 1995-01-18 | f0300e3f9865… |
| 204.145.193.0 – 204.145.193.255 | 256 | US |
allocated | 1995-01-18 | 9fcbb61f0249… |
| 204.145.194.0 – 204.145.194.255 | 256 | US |
allocated | 1995-01-18 | 9fcbb61f0249… |
| 204.145.195.0 – 204.145.195.255 | 256 | US |
allocated | 1995-01-18 | 18d7df3acc5d… |
| 204.145.196.0 – 204.145.196.255 | 256 | US |
allocated | 1995-01-18 | a0bd2e03d9a7… |
| 204.145.199.0 – 204.145.199.255 | 256 | US |
allocated | 1995-01-18 | a7e17a464fec… |
| 204.145.200.0 – 204.145.200.255 | 256 | US |
allocated | 1995-01-18 | 7ce5badf4545… |
| 196.1.141.0 – 196.1.141.255 | 256 |  PR |
allocated | 1995-01-17 | d8a3cb5dee4b… |
| 204.80.160.0 – 204.80.160.255 | 256 | US |
allocated | 1995-01-17 | 06510b51b417… |
| 204.128.175.0 – 204.128.175.255 | 256 | US |
allocated | 1995-01-17 | 0d49c6eefa41… |
| 204.128.176.0 – 204.128.176.255 | 256 | US |
allocated | 1995-01-17 | 22a8fea39bc2… |
| 204.128.177.0 – 204.128.177.255 | 256 | US |
allocated | 1995-01-17 | 3394ba71d298… |
| 204.128.178.0 – 204.128.178.255 | 256 | US |
allocated | 1995-01-17 | 8b3df0276899… |
| 204.128.179.0 – 204.128.179.255 | 256 | US |
allocated | 1995-01-17 | ac10f084e193… |
| 204.128.180.0 – 204.128.180.255 | 256 | US |
allocated | 1995-01-17 | a540a9cfb511… |
| 204.147.224.0 – 204.147.239.255 | 4,096 | US |
allocated | 1995-01-17 | a7f7463af3d3… |
| 204.147.240.0 – 204.147.255.255 | 4,096 | US |
allocated | 1995-01-17 | d5cc370d4b9d… |
| 204.153.200.0 – 204.153.203.255 | 1,024 | US |
allocated | 1995-01-17 | 8c9485eacaf3… |
| 204.153.204.0 – 204.153.205.255 | 512 | US |
allocated | 1995-01-17 | 56ec584742ed… |
| 204.153.208.0 – 204.153.211.255 | 1,024 | US |
allocated | 1995-01-17 | 841dc9bcb636… |
| 204.227.64.0 – 204.227.95.255 | 8,192 | US |
allocated | 1995-01-17 | 419fe4973128… |
| 204.231.0.0 – 204.231.127.255 | 32,768 | US |
allocated | 1995-01-17 | 551b723eafd6… |
| 204.231.128.0 – 204.231.191.255 | 16,384 | US |
allocated | 1995-01-17 | 551b723eafd6… |
| 204.232.0.0 – 204.232.63.255 | 16,384 | US |
allocated | 1995-01-17 | 0af64753ff07… |
| 199.253.96.0 – 199.253.111.255 | 4,096 | US |
allocated | 1995-01-16 | 22bdd5a890bc… |
| 199.253.112.0 – 199.253.127.255 | 4,096 | US |
allocated | 1995-01-16 | 9b46ccce17aa… |
| 204.58.140.0 – 204.58.143.255 | 1,024 | US |
allocated | 1995-01-16 | 4b26266c3cc8… |
| 204.126.148.0 – 204.126.149.255 | 512 | US |
allocated | 1995-01-16 | 63ff9f53ca14… |
| 204.58.128.0 – 204.58.129.255 | 512 | US |
allocated | 1995-01-15 | 52fdad44066a… |
| 204.58.130.0 – 204.58.130.255 | 256 | US |
allocated | 1995-01-15 | 52fdad44066a… |
| 204.58.132.0 – 204.58.133.255 | 512 | US |
allocated | 1995-01-15 | 78426826a35a… |
| 204.58.134.0 – 204.58.134.255 | 256 | US |
allocated | 1995-01-15 | 78426826a35a… |
| 204.80.155.0 – 204.80.155.255 | 256 | US |
allocated | 1995-01-15 | 1d8822edf7bc… |
| 204.80.156.0 – 204.80.156.255 | 256 | US |
allocated | 1995-01-15 | 09a2419fdbf1… |
| 204.80.158.0 – 204.80.158.255 | 256 | US |
allocated | 1995-01-15 | 0051d2f26139… |
| 204.126.142.0 – 204.126.143.255 | 512 | US |
allocated | 1995-01-15 | 9a65a87e3abf… |
| 204.126.144.0 – 204.126.145.255 | 512 | US |
allocated | 1995-01-15 | 7890dc3226f2… |
| 204.126.146.0 – 204.126.147.255 | 512 | US |
allocated | 1995-01-15 | 475e23fe0669… |
| 204.80.154.0 – 204.80.154.255 | 256 | US |
allocated | 1995-01-14 | 8ea789dad43c… |
| 204.124.244.0 – 204.124.247.255 | 1,024 | US |
allocated | 1995-01-14 | a544c8eabb01… |
| 204.124.248.0 – 204.124.249.255 | 512 | US |
allocated | 1995-01-14 | 78426826a35a… |
| 204.124.250.0 – 204.124.250.255 | 256 | US |
allocated | 1995-01-14 | 78426826a35a… |
| 204.124.252.0 – 204.124.255.255 | 1,024 | US |
allocated | 1995-01-14 | 08a7b1ea5f93… |
| 204.145.167.0 – 204.145.167.255 | 256 | US |
allocated | 1995-01-13 | bd22c925cafb… |
| 204.145.168.0 – 204.145.168.255 | 256 | US |
allocated | 1995-01-13 | eefcfdba089d… |
| 204.145.169.0 – 204.145.169.255 | 256 | US |
allocated | 1995-01-13 | 9ed6e5c62be1… |
| 204.145.170.0 – 204.145.170.255 | 256 | US |
allocated | 1995-01-13 | f8324037ced6… |
| 204.145.171.0 – 204.145.171.255 | 256 | US |
allocated | 1995-01-13 | b7759cd1ff61… |
| 204.145.172.0 – 204.145.172.255 | 256 | US |
allocated | 1995-01-13 | 35f487e213b4… |
| 204.145.173.0 – 204.145.173.255 | 256 | US |
allocated | 1995-01-13 | 743f948767e8… |
| 204.145.174.0 – 204.145.174.255 | 256 | US |
allocated | 1995-01-13 | ce85dd5efe32… |
| 204.145.175.0 – 204.145.175.255 | 256 | US |
allocated | 1995-01-13 | 1bc0a73f9e5b… |
| 204.145.177.0 – 204.145.177.255 | 256 | US |
allocated | 1995-01-13 | bb60a15e6e52… |
| 204.145.178.0 – 204.145.178.255 | 256 | US |
allocated | 1995-01-13 | b6cfbfde7c53… |
| 204.145.179.0 – 204.145.179.255 | 256 | US |
allocated | 1995-01-13 | 35f487e213b4… |
| 204.145.180.0 – 204.145.180.255 | 256 | US |
allocated | 1995-01-13 | 35f487e213b4… |
| 204.153.196.0 – 204.153.199.255 | 1,024 | US |
allocated | 1995-01-13 | 8189cc94604d… |
| 169.157.0.0 – 169.157.255.255 | 65,536 | US |
allocated | 1995-01-12 | 282ba7c4a8df… |
| 204.109.64.0 – 204.109.127.255 | 16,384 | US |
allocated | 1995-01-12 | 0f96442b2c77… |
| 204.128.64.0 – 204.128.127.255 | 16,384 | US |
allocated | 1995-01-12 | 74a00cdd92fc… |
| 204.145.165.0 – 204.145.165.255 | 256 | US |
allocated | 1995-01-12 | 5c416f24d8b4… |
| 204.145.166.0 – 204.145.166.255 | 256 | US |
allocated | 1995-01-12 | 54f1035a4ff7… |
| 204.147.192.0 – 204.147.199.255 | 2,048 | US |
allocated | 1995-01-12 | 8f7d14ca4d04… |