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
1,644,997,632
📦
IPv4 networks
76,756
delegated blocks
🧭
IPv6 networks
11,434
delegated blocks
🔗
Autonomous systems
34,116
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 23.143.37.0 – 23.143.43.255 | 1,792 | — | reserved | — | … |
| 23.143.45.0 – 23.143.51.255 | 1,792 | — | reserved | — | … |
| 23.143.53.0 – 23.143.55.255 | 768 | — | reserved | — | … |
| 23.143.57.0 – 23.143.59.255 | 768 | — | reserved | — | … |
| 23.143.61.0 – 23.143.63.255 | 768 | — | reserved | — | … |
| 23.143.65.0 – 23.143.67.255 | 768 | — | reserved | — | … |
| 23.143.69.0 – 23.143.75.255 | 1,792 | — | reserved | — | … |
| 23.143.77.0 – 23.143.79.255 | 768 | — | reserved | — | … |
| 23.143.81.0 – 23.143.81.255 | 256 | — | reserved | — | … |
| 23.143.83.0 – 23.143.83.255 | 256 | — | reserved | — | … |
| 23.143.85.0 – 23.143.91.255 | 1,792 | — | reserved | — | … |
| 23.143.93.0 – 23.143.99.255 | 1,792 | — | reserved | — | … |
| 23.143.101.0 – 23.143.103.255 | 768 | — | reserved | — | … |
| 23.143.105.0 – 23.143.107.255 | 768 | — | reserved | — | … |
| 23.143.109.0 – 23.143.111.255 | 768 | — | reserved | — | … |
| 23.143.113.0 – 23.143.115.255 | 768 | — | reserved | — | … |
| 23.143.117.0 – 23.143.119.255 | 768 | — | reserved | — | … |
| 23.143.121.0 – 23.143.123.255 | 768 | — | reserved | — | … |
| 23.143.125.0 – 23.143.127.255 | 768 | — | reserved | — | … |
| 23.143.129.0 – 23.143.131.255 | 768 | — | reserved | — | … |
| 23.143.133.0 – 23.143.135.255 | 768 | — | reserved | — | … |
| 23.143.137.0 – 23.143.139.255 | 768 | — | reserved | — | … |
| 23.143.141.0 – 23.143.147.255 | 1,792 | — | reserved | — | … |
| 23.143.149.0 – 23.143.151.255 | 768 | — | reserved | — | … |
| 23.143.153.0 – 23.143.155.255 | 768 | — | reserved | — | … |
| 23.143.157.0 – 23.143.159.255 | 768 | — | reserved | — | … |
| 23.143.161.0 – 23.143.163.255 | 768 | — | reserved | — | … |
| 23.143.165.0 – 23.143.167.255 | 768 | — | reserved | — | … |
| 23.143.169.0 – 23.143.171.255 | 768 | — | reserved | — | … |
| 23.143.173.0 – 23.143.175.255 | 768 | — | reserved | — | … |
| 23.143.177.0 – 23.143.179.255 | 768 | — | reserved | — | … |
| 23.143.181.0 – 23.143.183.255 | 768 | — | reserved | — | … |
| 23.143.185.0 – 23.143.187.255 | 768 | — | reserved | — | … |
| 23.143.189.0 – 23.143.195.255 | 1,792 | — | reserved | — | … |
| 23.143.197.0 – 23.143.199.255 | 768 | — | reserved | — | … |
| 23.143.201.0 – 23.143.203.255 | 768 | — | reserved | — | … |
| 23.143.205.0 – 23.143.207.255 | 768 | — | reserved | — | … |
| 23.143.209.0 – 23.143.211.255 | 768 | — | reserved | — | … |
| 23.143.213.0 – 23.143.215.255 | 768 | — | reserved | — | … |
| 23.143.217.0 – 23.143.219.255 | 768 | — | reserved | — | … |
| 23.143.221.0 – 23.143.223.255 | 768 | — | reserved | — | … |
| 23.143.225.0 – 23.143.227.255 | 768 | — | reserved | — | … |
| 23.143.229.0 – 23.143.231.255 | 768 | — | reserved | — | … |
| 23.143.233.0 – 23.143.235.255 | 768 | — | reserved | — | … |
| 23.143.237.0 – 23.143.239.255 | 768 | — | reserved | — | … |
| 23.143.241.0 – 23.143.243.255 | 768 | — | reserved | — | … |
| 23.143.245.0 – 23.143.247.255 | 768 | — | reserved | — | … |
| 23.143.249.0 – 23.143.251.255 | 768 | — | reserved | — | … |
| 23.143.253.0 – 23.143.255.255 | 768 | — | reserved | — | … |
| 23.144.1.0 – 23.144.3.255 | 768 | — | reserved | — | … |
| 23.144.5.0 – 23.144.7.255 | 768 | — | reserved | — | … |
| 23.144.9.0 – 23.144.11.255 | 768 | — | reserved | — | … |
| 23.144.13.0 – 23.144.15.255 | 768 | — | reserved | — | … |
| 23.144.17.0 – 23.144.19.255 | 768 | — | reserved | — | … |
| 23.144.21.0 – 23.144.23.255 | 768 | — | reserved | — | … |
| 23.144.25.0 – 23.144.27.255 | 768 | — | reserved | — | … |
| 23.144.29.0 – 23.144.35.255 | 1,792 | — | reserved | — | … |
| 23.144.37.0 – 23.144.39.255 | 768 | — | reserved | — | … |
| 23.144.42.0 – 23.144.43.255 | 512 | — | reserved | — | … |
| 23.144.45.0 – 23.144.47.255 | 768 | — | reserved | — | … |
| 23.144.49.0 – 23.144.51.255 | 768 | — | reserved | — | … |
| 23.144.53.0 – 23.144.55.255 | 768 | — | reserved | — | … |
| 23.144.57.0 – 23.144.59.255 | 768 | — | reserved | — | … |
| 23.144.61.0 – 23.144.63.255 | 768 | — | reserved | — | … |
| 23.144.65.0 – 23.144.67.255 | 768 | — | reserved | — | … |
| 23.144.69.0 – 23.144.75.255 | 1,792 | — | reserved | — | … |
| 23.144.77.0 – 23.144.79.255 | 768 | — | reserved | — | … |
| 23.144.81.0 – 23.144.81.255 | 256 | — | reserved | — | … |
| 23.144.83.0 – 23.144.83.255 | 256 | — | reserved | — | … |
| 23.144.85.0 – 23.144.87.255 | 768 | — | reserved | — | … |
| 23.144.89.0 – 23.144.91.255 | 768 | — | reserved | — | … |
| 23.144.93.0 – 23.144.95.255 | 768 | — | reserved | — | … |
| 23.144.97.0 – 23.144.99.255 | 768 | — | reserved | — | … |
| 23.144.101.0 – 23.144.103.255 | 768 | — | reserved | — | … |
| 23.144.105.0 – 23.144.107.255 | 768 | — | reserved | — | … |
| 23.144.109.0 – 23.144.111.255 | 768 | — | reserved | — | … |
| 23.144.113.0 – 23.144.115.255 | 768 | — | reserved | — | … |
| 23.144.117.0 – 23.144.119.255 | 768 | — | reserved | — | … |
| 23.144.121.0 – 23.144.123.255 | 768 | — | reserved | — | … |
| 23.144.125.0 – 23.144.127.255 | 768 | — | reserved | — | … |
| 23.144.129.0 – 23.144.131.255 | 768 | — | reserved | — | … |
| 23.144.133.0 – 23.144.135.255 | 768 | — | reserved | — | … |
| 23.144.137.0 – 23.144.139.255 | 768 | — | reserved | — | … |
| 23.144.141.0 – 23.144.143.255 | 768 | — | reserved | — | … |
| 23.144.145.0 – 23.144.147.255 | 768 | — | reserved | — | … |
| 23.144.149.0 – 23.144.151.255 | 768 | — | reserved | — | … |
| 23.144.153.0 – 23.144.155.255 | 768 | — | reserved | — | … |
| 23.144.157.0 – 23.144.159.255 | 768 | — | reserved | — | … |
| 23.144.161.0 – 23.144.163.255 | 768 | — | reserved | — | … |
| 23.144.165.0 – 23.144.167.255 | 768 | — | reserved | — | … |
| 23.144.170.0 – 23.144.171.255 | 512 | — | reserved | — | … |
| 23.144.173.0 – 23.144.175.255 | 768 | — | reserved | — | … |
| 23.144.177.0 – 23.144.179.255 | 768 | — | reserved | — | … |
| 23.144.181.0 – 23.144.183.255 | 768 | — | reserved | — | … |
| 23.144.185.0 – 23.144.187.255 | 768 | — | reserved | — | … |
| 23.144.189.0 – 23.144.191.255 | 768 | — | reserved | — | … |
| 23.144.193.0 – 23.144.195.255 | 768 | — | reserved | — | … |
| 23.144.197.0 – 23.144.199.255 | 768 | — | reserved | — | … |
| 23.144.201.0 – 23.144.203.255 | 768 | — | reserved | — | … |
| 23.144.205.0 – 23.144.207.255 | 768 | — | reserved | — | … |