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 |
|---|---|---|---|---|---|
| 192.135.176.0 – 192.135.176.255 | 256 |  US |
allocated | 1991-12-16 | 55b944a5a407… |
| 192.135.169.0 – 192.135.169.255 | 256 | US |
allocated | 1991-12-13 | a54c0b74d040… |
| 192.135.170.0 – 192.135.170.255 | 256 | US |
allocated | 1991-12-13 | 7ded20f658f4… |
| 192.135.171.0 – 192.135.171.255 | 256 | US |
allocated | 1991-12-13 | 7ded20f658f4… |
| 192.135.172.0 – 192.135.172.255 | 256 | US |
allocated | 1991-12-13 | 7ded20f658f4… |
| 192.135.173.0 – 192.135.173.255 | 256 | US |
allocated | 1991-12-13 | 7ded20f658f4… |
| 192.135.174.0 – 192.135.174.255 | 256 | US |
allocated | 1991-12-13 | 0d8f98080295… |
| 156.63.0.0 – 156.63.255.255 | 65,536 | US |
allocated | 1991-12-12 | 026de95631c8… |
| 157.21.0.0 – 157.21.255.255 | 65,536 | US |
allocated | 1991-12-12 | d38a4472ac6b… |
| 192.131.104.0 – 192.131.104.255 | 256 | US |
allocated | 1991-12-12 | 99522fef3599… |
| 192.135.139.0 – 192.135.139.255 | 256 | US |
allocated | 1991-12-12 | 91502d3bb315… |
| 192.135.140.0 – 192.135.140.255 | 256 | US |
allocated | 1991-12-12 | 58a57d927982… |
| 155.244.0.0 – 155.244.255.255 | 65,536 | US |
allocated | 1991-12-11 | 45fe880b68a8… |
| 155.252.0.0 – 155.252.255.255 | 65,536 | US |
allocated | 1991-12-11 | 45fe880b68a8… |
| 155.254.1.0 – 155.254.1.255 | 256 | US |
allocated | 1991-12-11 | 1af6f5e38c00… |
| 155.254.128.0 – 155.254.129.255 | 512 | US |
allocated | 1991-12-11 | 1af6f5e38c00… |
| 155.254.130.0 – 155.254.130.255 | 256 | US |
allocated | 1991-12-11 | 1af6f5e38c00… |
| 192.135.122.0 – 192.135.122.255 | 256 | US |
allocated | 1991-12-11 | 45fe880b68a8… |
| 192.135.130.0 – 192.135.130.255 | 256 | US |
allocated | 1991-12-11 | 06099598bd7f… |
| 192.135.131.0 – 192.135.131.255 | 256 | US |
allocated | 1991-12-11 | 1b023e4662da… |
| 192.135.132.0 – 192.135.132.255 | 256 | US |
allocated | 1991-12-11 | f384826cbf5d… |
| 192.135.134.0 – 192.135.134.255 | 256 | US |
allocated | 1991-12-11 | 83d7b368ff84… |
| 192.135.135.0 – 192.135.135.255 | 256 | US |
allocated | 1991-12-11 | 24ba98dc1632… |
| 192.135.137.0 – 192.135.137.255 | 256 | US |
allocated | 1991-12-11 | 1294ff2b4220… |
| 192.135.138.0 – 192.135.138.255 | 256 | US |
allocated | 1991-12-11 | 1af4807e5b51… |
| 156.56.0.0 – 156.56.255.255 | 65,536 | US |
allocated | 1991-12-10 | 6130c4b96fdd… |
| 156.60.0.0 – 156.60.255.255 | 65,536 | US |
allocated | 1991-12-10 | f35f3d727528… |
| 192.133.245.0 – 192.133.245.255 | 256 | US |
allocated | 1991-12-10 | 7008a4e024db… |
| 192.133.246.0 – 192.133.246.255 | 256 | US |
allocated | 1991-12-10 | 7008a4e024db… |
| 155.241.0.0 – 155.241.255.255 | 65,536 | US |
allocated | 1991-12-09 | 7347b13c724c… |
| 155.242.0.0 – 155.242.255.255 | 65,536 | US |
allocated | 1991-12-09 | 7347b13c724c… |
| 155.243.0.0 – 155.243.255.255 | 65,536 | US |
allocated | 1991-12-09 | 7347b13c724c… |
| 156.36.0.0 – 156.36.255.255 | 65,536 | US |
allocated | 1991-12-09 | 1eddf09bf080… |
| 156.37.0.0 – 156.37.255.255 | 65,536 | US |
allocated | 1991-12-09 | 80b8ab4df159… |
| 156.39.0.0 – 156.39.255.255 | 65,536 | US |
allocated | 1991-12-09 | e26ada024c7a… |
| 156.40.0.0 – 156.40.63.255 | 16,384 | US |
allocated | 1991-12-09 | bf415d4b2902… |
| 156.40.64.0 – 156.40.79.255 | 4,096 | US |
allocated | 1991-12-09 | bf415d4b2902… |
| 156.40.80.0 – 156.40.87.255 | 2,048 | US |
allocated | 1991-12-09 | bf415d4b2902… |
| 156.40.88.0 – 156.40.91.255 | 1,024 | US |
allocated | 1991-12-09 | bf415d4b2902… |
| 156.40.92.0 – 156.40.92.255 | 256 | US |
allocated | 1991-12-09 | bf415d4b2902… |
| 156.40.93.0 – 156.40.93.255 | 256 | US |
allocated | 1991-12-09 | 5090b33b29fa… |
| 156.40.94.0 – 156.40.95.255 | 512 | US |
allocated | 1991-12-09 | 5090b33b29fa… |
| 156.40.96.0 – 156.40.127.255 | 8,192 | US |
allocated | 1991-12-09 | bf415d4b2902… |
| 156.40.128.0 – 156.40.191.255 | 16,384 | US |
allocated | 1991-12-09 | bf415d4b2902… |
| 156.40.192.0 – 156.40.195.255 | 1,024 | US |
allocated | 1991-12-09 | bf415d4b2902… |
| 156.40.196.0 – 156.40.196.255 | 256 | US |
allocated | 1991-12-09 | bf415d4b2902… |
| 156.40.197.0 – 156.40.197.255 | 256 | US |
allocated | 1991-12-09 | 5090b33b29fa… |
| 156.40.198.0 – 156.40.199.255 | 512 | US |
allocated | 1991-12-09 | bf415d4b2902… |
| 156.40.200.0 – 156.40.207.255 | 2,048 | US |
allocated | 1991-12-09 | bf415d4b2902… |
| 156.40.208.0 – 156.40.223.255 | 4,096 | US |
allocated | 1991-12-09 | bf415d4b2902… |
| 156.40.224.0 – 156.40.255.255 | 8,192 | US |
allocated | 1991-12-09 | bf415d4b2902… |
| 156.42.0.0 – 156.42.255.255 | 65,536 | US |
allocated | 1991-12-09 | 9bfc63696eab… |
| 156.44.0.0 – 156.44.255.255 | 65,536 |  CA |
allocated | 1991-12-09 | cddfb7fb67fb… |
| 156.45.192.0 – 156.45.223.255 | 8,192 | US |
allocated | 1991-12-09 | b93d5079ef03… |
| 156.45.240.0 – 156.45.255.255 | 4,096 | US |
allocated | 1991-12-09 | b93d5079ef03… |
| 156.47.0.0 – 156.47.31.255 | 8,192 | US |
allocated | 1991-12-09 | 619f4dc3183f… |
| 156.53.0.0 – 156.53.255.255 | 65,536 | US |
allocated | 1991-12-09 | 80b8ab4df159… |
| 156.55.0.0 – 156.55.255.255 | 65,536 | US |
allocated | 1991-12-09 | d3529f254bc5… |
| 192.133.122.0 – 192.133.122.255 | 256 | US |
allocated | 1991-12-09 | 299ad3a63282… |
| 192.133.123.0 – 192.133.123.255 | 256 | US |
allocated | 1991-12-09 | 7962403e4958… |
| 192.133.124.0 – 192.133.124.255 | 256 | US |
allocated | 1991-12-09 | e43f12c6ea05… |
| 192.133.125.0 – 192.133.125.255 | 256 | US |
allocated | 1991-12-09 | 24256b39ad73… |
| 192.133.126.0 – 192.133.126.255 | 256 | US |
allocated | 1991-12-09 | 37e8b4dda64e… |
| 192.133.127.0 – 192.133.127.255 | 256 | US |
allocated | 1991-12-09 | 692ae896e573… |
| 192.133.128.0 – 192.133.128.255 | 256 | US |
allocated | 1991-12-09 | e0164bf1d28d… |
| 192.133.129.0 – 192.133.129.255 | 256 | US |
allocated | 1991-12-09 | 91aa7d7b181c… |
| 192.133.130.0 – 192.133.130.255 | 256 | US |
allocated | 1991-12-09 | b53f9cca0493… |
| 192.133.132.0 – 192.133.132.255 | 256 | US |
allocated | 1991-12-09 | 528c1b69f987… |
| 192.133.133.0 – 192.133.133.255 | 256 | US |
allocated | 1991-12-09 | 975a4da6f724… |
| 192.133.134.0 – 192.133.134.255 | 256 | US |
allocated | 1991-12-09 | 8f7d4362b36a… |
| 192.133.135.0 – 192.133.135.255 | 256 | US |
allocated | 1991-12-09 | a1220ad803c3… |
| 192.133.120.0 – 192.133.120.255 | 256 | US |
allocated | 1991-12-06 | 515692b0f6a4… |
| 149.32.0.0 – 149.32.255.255 | 65,536 | US |
allocated | 1991-12-05 | 58a1842e4fc7… |
| 192.135.85.0 – 192.135.85.255 | 256 | US |
allocated | 1991-12-05 | dc2c88ecb8d5… |
| 192.135.86.0 – 192.135.86.255 | 256 | US |
allocated | 1991-12-05 | b004b3ecde24… |
| 192.135.87.0 – 192.135.87.255 | 256 | US |
allocated | 1991-12-05 | b004b3ecde24… |
| 192.135.88.0 – 192.135.88.255 | 256 | US |
allocated | 1991-12-05 | b004b3ecde24… |
| 155.229.0.0 – 155.229.255.255 | 65,536 | US |
allocated | 1991-12-04 | a7f7463af3d3… |
| 155.74.0.0 – 155.74.255.255 | 65,536 | US |
allocated | 1991-12-03 | 45fe880b68a8… |
| 155.75.0.0 – 155.75.255.255 | 65,536 | US |
allocated | 1991-12-03 | 45fe880b68a8… |
| 155.76.0.0 – 155.76.255.255 | 65,536 | US |
allocated | 1991-12-03 | 45fe880b68a8… |
| 155.77.0.0 – 155.77.255.255 | 65,536 | US |
allocated | 1991-12-03 | 45fe880b68a8… |
| 155.78.0.0 – 155.78.255.255 | 65,536 | US |
allocated | 1991-12-03 | 45fe880b68a8… |
| 155.79.0.0 – 155.79.255.255 | 65,536 | US |
allocated | 1991-12-03 | 45fe880b68a8… |
| 155.80.0.0 – 155.80.255.255 | 65,536 | US |
allocated | 1991-12-03 | 45fe880b68a8… |
| 155.81.0.0 – 155.81.255.255 | 65,536 | US |
allocated | 1991-12-03 | 45fe880b68a8… |
| 155.82.0.0 – 155.82.255.255 | 65,536 | US |
allocated | 1991-12-03 | 45fe880b68a8… |
| 155.83.0.0 – 155.83.255.255 | 65,536 | US |
allocated | 1991-12-03 | 45fe880b68a8… |
| 155.84.0.0 – 155.84.255.255 | 65,536 | US |
allocated | 1991-12-03 | 45fe880b68a8… |
| 155.85.0.0 – 155.85.255.255 | 65,536 | US |
allocated | 1991-12-03 | 45fe880b68a8… |
| 155.86.0.0 – 155.86.255.255 | 65,536 | US |
allocated | 1991-12-03 | 45fe880b68a8… |
| 155.87.0.0 – 155.87.255.255 | 65,536 | US |
allocated | 1991-12-03 | 45fe880b68a8… |
| 155.88.0.0 – 155.88.255.255 | 65,536 | US |
allocated | 1991-12-03 | 45fe880b68a8… |
| 156.32.0.0 – 156.32.255.255 | 65,536 | US |
allocated | 1991-12-03 | c957f9a6fe4b… |
| 156.33.0.0 – 156.33.255.255 | 65,536 | US |
allocated | 1991-12-03 | e45fed92c8c2… |
| 192.135.78.0 – 192.135.78.255 | 256 | US |
allocated | 1991-12-03 | 16d7185475ae… |
| 192.135.79.0 – 192.135.79.255 | 256 | US |
allocated | 1991-12-03 | aa58cc570f07… |
| 192.135.80.0 – 192.135.80.255 | 256 | US |
allocated | 1991-12-03 | 76b39bcb4f62… |
| 192.135.81.0 – 192.135.81.255 | 256 | US |
allocated | 1991-12-03 | 7bfab4b4b3b8… |
| 155.225.0.0 – 155.225.255.255 | 65,536 | US |
allocated | 1991-12-02 | defae4ba228b… |