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 |
|---|---|---|---|---|---|
| 204.145.148.0 – 204.145.148.255 | 256 |  US |
allocated | 1995-01-09 | 95c411f5e8d7… |
| 204.145.149.0 – 204.145.149.255 | 256 | US |
allocated | 1995-01-09 | 17ef485c0f51… |
| 204.145.150.0 – 204.145.150.255 | 256 | US |
allocated | 1995-01-09 | 659b3aca8434… |
| 204.145.151.0 – 204.145.151.255 | 256 | US |
allocated | 1995-01-09 | b6898c5ccd69… |
| 204.145.153.0 – 204.145.153.255 | 256 | US |
allocated | 1995-01-09 | 4f17c73991c8… |
| 204.145.154.0 – 204.145.154.255 | 256 | US |
allocated | 1995-01-09 | dccc624a3dce… |
| 204.145.155.0 – 204.145.155.255 | 256 | US |
allocated | 1995-01-09 | 1d9bcf9d2629… |
| 204.145.156.0 – 204.145.156.255 | 256 | US |
allocated | 1995-01-09 | a1b93743f531… |
| 169.156.0.0 – 169.156.255.255 | 65,536 | US |
allocated | 1995-01-07 | 9c708128b569… |
| 204.87.174.0 – 204.87.174.255 | 256 | US |
allocated | 1995-01-07 | 7c13e685ac34… |
| 204.87.176.0 – 204.87.176.255 | 256 | US |
allocated | 1995-01-07 | f20f3c5ee016… |
| 204.124.236.0 – 204.124.237.255 | 512 | US |
allocated | 1995-01-07 | f95a2322e342… |
| 204.124.238.0 – 204.124.238.255 | 256 | US |
allocated | 1995-01-07 | f95a2322e342… |
| 204.126.138.0 – 204.126.139.255 | 512 | US |
allocated | 1995-01-07 | c8d04e90d4ec… |
| 204.128.155.0 – 204.128.155.255 | 256 | US |
allocated | 1995-01-07 | 54e4f26b4169… |
| 204.128.156.0 – 204.128.156.255 | 256 | US |
allocated | 1995-01-07 | e0ab146c9209… |
| 204.128.157.0 – 204.128.157.255 | 256 | US |
allocated | 1995-01-07 | 97e6466c74ae… |
| 204.128.158.0 – 204.128.158.255 | 256 | US |
allocated | 1995-01-07 | be395f5a1aa5… |
| 204.128.159.0 – 204.128.159.255 | 256 | US |
allocated | 1995-01-07 | 881a15249f2c… |
| 204.128.160.0 – 204.128.160.255 | 256 | US |
allocated | 1995-01-07 | 311254ff1588… |
| 204.128.161.0 – 204.128.161.255 | 256 | US |
allocated | 1995-01-07 | eb56e024c2ce… |
| 204.128.162.0 – 204.128.162.255 | 256 | US |
allocated | 1995-01-07 | 58842d343c16… |
| 204.128.163.0 – 204.128.163.255 | 256 | US |
allocated | 1995-01-07 | 17c97b6b9ae9… |
| 204.128.165.0 – 204.128.165.255 | 256 | US |
allocated | 1995-01-07 | 52087967609b… |
| 204.128.166.0 – 204.128.166.255 | 256 | US |
allocated | 1995-01-07 | 1d16a78ae705… |
| 204.128.167.0 – 204.128.167.255 | 256 | US |
allocated | 1995-01-07 | cece3f9a43bb… |
| 204.128.168.0 – 204.128.168.255 | 256 | US |
allocated | 1995-01-07 | 478e17058745… |
| 204.128.169.0 – 204.128.169.255 | 256 | US |
allocated | 1995-01-07 | d5054d4df6d2… |
| 204.128.172.0 – 204.128.172.255 | 256 | US |
allocated | 1995-01-07 | 440a37e399a6… |
| 204.128.173.0 – 204.128.173.255 | 256 | US |
allocated | 1995-01-07 | 1b1129d70fb6… |
| 204.128.174.0 – 204.128.174.255 | 256 | US |
allocated | 1995-01-07 | 6b27caac0c0c… |
| 204.152.76.0 – 204.152.77.255 | 512 | US |
allocated | 1995-01-07 | 20e6bf899752… |
| 204.153.188.0 – 204.153.191.255 | 1,024 | US |
allocated | 1995-01-07 | 229bd77a7ce2… |
| 204.153.192.0 – 204.153.195.255 | 1,024 | US |
allocated | 1995-01-07 | 1f4dca3e4544… |
| 204.193.224.0 – 204.193.255.255 | 8,192 | US |
allocated | 1995-01-07 | 2c6c115c0874… |
| 204.194.104.0 – 204.194.107.255 | 1,024 | US |
allocated | 1995-01-07 | d9d954937446… |
| 204.194.108.0 – 204.194.109.255 | 512 | US |
allocated | 1995-01-07 | d9d954937446… |
| 204.194.110.0 – 204.194.110.255 | 256 | US |
allocated | 1995-01-07 | d9d954937446… |
| 204.194.120.0 – 204.194.127.255 | 2,048 | US |
allocated | 1995-01-07 | be87a6f57401… |
| 204.194.128.0 – 204.194.143.255 | 4,096 | US |
allocated | 1995-01-07 | be87a6f57401… |
| 204.194.144.0 – 204.194.159.255 | 4,096 | US |
allocated | 1995-01-07 | 7347b13c724c… |
| 204.194.160.0 – 204.194.167.255 | 2,048 | US |
allocated | 1995-01-07 | 7347b13c724c… |
| 192.17.0.0 – 192.17.255.255 | 65,536 | US |
allocated | 1995-01-06 | bd6f4480245e… |
| 192.111.121.0 – 192.111.121.255 | 256 | US |
allocated | 1995-01-06 | f4c20681d646… |
| 204.153.184.0 – 204.153.187.255 | 1,024 | US |
allocated | 1995-01-06 | 45fe880b68a8… |
| 170.208.0.0 – 170.208.255.255 | 65,536 | US |
allocated | 1995-01-05 | 653fe15aba4f… |
| 204.44.160.0 – 204.44.175.255 | 4,096 | US |
allocated | 1995-01-05 | 7ad8a5644c0b… |
| 204.44.176.0 – 204.44.183.255 | 2,048 | US |
allocated | 1995-01-05 | 6de766534261… |
| 204.44.184.0 – 204.44.187.255 | 1,024 | US |
allocated | 1995-01-05 | 6de766534261… |
| 204.61.160.0 – 204.61.191.255 | 8,192 | US |
allocated | 1995-01-05 | 9a603f4e31b8… |
| 204.76.190.0 – 204.76.191.255 | 512 | US |
allocated | 1995-01-05 | 333de8fecfc9… |
| 204.76.192.0 – 204.76.195.255 | 1,024 | US |
allocated | 1995-01-05 | 333de8fecfc9… |
| 204.76.198.0 – 204.76.199.255 | 512 | US |
allocated | 1995-01-05 | 2aa973309a57… |
| 204.76.200.0 – 204.76.201.255 | 512 | US |
allocated | 1995-01-05 | 2aa973309a57… |
| 204.76.202.0 – 204.76.202.255 | 256 | US |
allocated | 1995-01-05 | 2aa973309a57… |
| 204.76.206.0 – 204.76.207.255 | 512 | US |
allocated | 1995-01-05 | 7036a4f962c7… |
| 204.76.208.0 – 204.76.209.255 | 512 | US |
allocated | 1995-01-05 | 7036a4f962c7… |
| 204.76.210.0 – 204.76.210.255 | 256 | US |
allocated | 1995-01-05 | 7036a4f962c7… |
| 204.76.214.0 – 204.76.215.255 | 512 | US |
allocated | 1995-01-05 | ca8e91f64ee1… |
| 204.76.216.0 – 204.76.219.255 | 1,024 | US |
allocated | 1995-01-05 | ca8e91f64ee1… |
| 204.76.222.0 – 204.76.223.255 | 512 | US |
allocated | 1995-01-05 | ff6ac5f645ba… |
| 204.76.224.0 – 204.76.227.255 | 1,024 | US |
allocated | 1995-01-05 | ff6ac5f645ba… |
| 204.76.228.0 – 204.76.229.255 | 512 | US |
allocated | 1995-01-05 | ff6ac5f645ba… |
| 204.87.171.0 – 204.87.171.255 | 256 | US |
allocated | 1995-01-05 | 796683e46a99… |
| 204.87.172.0 – 204.87.172.255 | 256 | US |
allocated | 1995-01-05 | 6a2bec1ff1c3… |
| 204.126.119.0 – 204.126.119.255 | 256 | US |
allocated | 1995-01-05 | 7427d76727e8… |
| 204.126.134.0 – 204.126.135.255 | 512 | US |
allocated | 1995-01-05 | c48d5a7af6c6… |
| 204.144.109.0 – 204.144.109.255 | 256 | US |
allocated | 1995-01-05 | 35b615a70e0c… |
| 204.144.110.0 – 204.144.110.255 | 256 | US |
allocated | 1995-01-05 | 15e3eb9810d9… |
| 204.144.111.0 – 204.144.111.255 | 256 | US |
allocated | 1995-01-05 | f45269b7ae51… |
| 204.144.112.0 – 204.144.112.255 | 256 | US |
allocated | 1995-01-05 | fc17f7ff7575… |
| 204.144.113.0 – 204.144.113.255 | 256 | US |
allocated | 1995-01-05 | 007a277fe5e8… |
| 204.144.115.0 – 204.144.115.255 | 256 | US |
allocated | 1995-01-05 | 6ef52c2bba92… |
| 204.144.116.0 – 204.144.116.255 | 256 | US |
allocated | 1995-01-05 | fdece58730c8… |
| 204.144.117.0 – 204.144.117.255 | 256 | US |
allocated | 1995-01-05 | c0fc999b7c50… |
| 204.153.180.0 – 204.153.183.255 | 1,024 | US |
allocated | 1995-01-05 | 79c6963dda1c… |
| 204.220.0.0 – 204.221.255.255 | 131,072 | US |
allocated | 1995-01-05 | f9bdc9d330fa… |
| 204.222.0.0 – 204.222.255.255 | 65,536 | US |
allocated | 1995-01-05 | 45fe880b68a8… |
| 204.223.0.0 – 204.223.255.255 | 65,536 | US |
allocated | 1995-01-05 | 45fe880b68a8… |
| 204.224.0.0 – 204.224.255.255 | 65,536 | US |
allocated | 1995-01-05 | c6c154e59512… |
| 204.140.64.0 – 204.140.127.255 | 16,384 | US |
allocated | 1995-01-04 | 551b723eafd6… |
| 204.144.64.0 – 204.144.64.255 | 256 | US |
allocated | 1995-01-04 | 36b00373464b… |
| 204.144.65.0 – 204.144.65.255 | 256 | US |
allocated | 1995-01-04 | c673aa4481e1… |
| 204.144.66.0 – 204.144.66.255 | 256 | US |
allocated | 1995-01-04 | bb05ace497d8… |
| 204.144.67.0 – 204.144.67.255 | 256 | US |
allocated | 1995-01-04 | d3f9a002dbf2… |
| 204.144.68.0 – 204.144.68.255 | 256 | US |
allocated | 1995-01-04 | 9b063abc8648… |
| 204.144.70.0 – 204.144.70.255 | 256 | US |
allocated | 1995-01-04 | dfbbb39ebfa5… |
| 204.144.71.0 – 204.144.71.255 | 256 | US |
allocated | 1995-01-04 | c892462bd039… |
| 204.144.72.0 – 204.144.72.255 | 256 | US |
allocated | 1995-01-04 | 05981c7b2f9f… |
| 204.144.73.0 – 204.144.73.255 | 256 | US |
allocated | 1995-01-04 | 8cd9bad5bbf2… |
| 204.144.74.0 – 204.144.74.255 | 256 | US |
allocated | 1995-01-04 | c2ef3e6441be… |
| 204.144.75.0 – 204.144.75.255 | 256 | US |
allocated | 1995-01-04 | 325e2ae7c34c… |
| 204.144.76.0 – 204.144.76.255 | 256 | US |
allocated | 1995-01-04 | 7e8ed65c0023… |
| 204.144.77.0 – 204.144.77.255 | 256 | US |
allocated | 1995-01-04 | 851e42f16182… |
| 204.144.78.0 – 204.144.78.255 | 256 |  PR |
allocated | 1995-01-04 | d80dabe8e2a3… |
| 204.144.79.0 – 204.144.79.255 | 256 | US |
allocated | 1995-01-04 | a8aedb0633eb… |
| 204.144.80.0 – 204.144.80.255 | 256 | US |
allocated | 1995-01-04 | aadc0d0b499b… |
| 204.144.81.0 – 204.144.81.255 | 256 | US |
allocated | 1995-01-04 | 4886a79e4b71… |
| 204.144.82.0 – 204.144.82.255 | 256 | US |
allocated | 1995-01-04 | 80533cf269b2… |
| 204.144.83.0 – 204.144.83.255 | 256 | US |
allocated | 1995-01-04 | fbe7be98a560… |