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
1,644,546,048
📦
IPv4 networks
77,308
delegated blocks
🧭
IPv6 networks
11,579
delegated blocks
🔗
Autonomous systems
34,292
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 131.197.0.0 – 131.197.255.255 | 65,536 |  US |
allocated | 1989-01-09 | 75d36c8fa149… |
| 131.199.0.0 – 131.199.255.255 | 65,536 | US |
allocated | 1989-01-09 | ffd67fadfdd4… |
| 131.200.0.0 – 131.200.255.255 | 65,536 | US |
allocated | 1989-01-09 | c9e88a1c54b7… |
| 147.137.0.0 – 147.137.255.255 | 65,536 | US |
allocated | 1989-01-09 | fdea1ee66a5e… |
| 192.43.249.0 – 192.43.249.255 | 256 | US |
allocated | 1989-01-09 | e4c1f86ef5bb… |
| 192.43.250.0 – 192.43.250.255 | 256 | US |
allocated | 1989-01-09 | fdea1ee66a5e… |
| 131.195.0.0 – 131.195.255.255 | 65,536 |  CA |
allocated | 1989-01-06 | fa69c6e836f6… |
| 131.194.0.0 – 131.194.255.255 | 65,536 | US |
allocated | 1989-01-05 | 2571c327b679… |
| 192.43.248.0 – 192.43.248.255 | 256 | US |
allocated | 1989-01-05 | 9ff7fce8dc40… |
| 131.190.0.0 – 131.190.255.255 | 65,536 | US |
allocated | 1989-01-04 | 0dc6694c14a3… |
| 131.191.0.0 – 131.191.255.255 | 65,536 | US |
allocated | 1989-01-04 | c61f5db756c9… |
| 131.192.0.0 – 131.192.255.255 | 65,536 | US |
allocated | 1989-01-04 | e5e3b9c13678… |
| 131.193.0.0 – 131.193.255.255 | 65,536 | US |
allocated | 1989-01-04 | d57c1a0e7da3… |
| 192.1.0.0 – 192.1.255.255 | 65,536 | US |
allocated | 1989-01-04 | e6750e8cf750… |
| 192.44.91.0 – 192.44.91.255 | 256 | US |
allocated | 1989-01-04 | 0dc6694c14a3… |
| 192.44.92.0 – 192.44.95.255 | 1,024 | US |
allocated | 1989-01-04 | 0dc6694c14a3… |
| 192.44.96.0 – 192.44.127.255 | 8,192 | US |
allocated | 1989-01-04 | 0dc6694c14a3… |
| 192.44.128.0 – 192.44.191.255 | 16,384 | US |
allocated | 1989-01-04 | 0dc6694c14a3… |
| 192.44.192.0 – 192.44.207.255 | 4,096 | US |
allocated | 1989-01-04 | 0dc6694c14a3… |
| 192.44.208.0 – 192.44.215.255 | 2,048 | US |
allocated | 1989-01-04 | 0dc6694c14a3… |
| 131.187.0.0 – 131.187.255.255 | 65,536 | US |
allocated | 1989-01-03 | f4bb71b8cdaf… |
| 137.197.0.0 – 137.197.255.255 | 65,536 | US |
allocated | 1989-01-03 | 0b05069aceff… |
| 137.198.0.0 – 137.198.255.255 | 65,536 | US |
allocated | 1989-01-03 | f413db073eeb… |
| 137.203.0.0 – 137.203.255.255 | 65,536 | US |
allocated | 1989-01-03 | 13f5f6f56042… |
| 192.43.247.0 – 192.43.247.255 | 256 | US |
allocated | 1989-01-03 | 4a67db8a65eb… |
| 131.198.0.0 – 131.198.255.255 | 65,536 | US |
allocated | 1989-01-01 | ffd67fadfdd4… |
| 131.182.0.0 – 131.182.255.255 | 65,536 | US |
allocated | 1988-12-23 | 2d90cbf4f78e… |
| 192.43.244.0 – 192.43.244.255 | 256 | US |
allocated | 1988-12-23 | 214dd09db2ca… |
| 192.43.245.0 – 192.43.245.255 | 256 | US |
allocated | 1988-12-23 | e46d50b27c27… |
| 192.43.243.0 – 192.43.243.255 | 256 | US |
allocated | 1988-12-22 | e8d4bb82379d… |
| 131.179.0.0 – 131.179.255.255 | 65,536 | US |
allocated | 1988-12-21 | 4fd07590de28… |
| 192.43.240.0 – 192.43.240.255 | 256 | US |
allocated | 1988-12-21 | 2d90cbf4f78e… |
| 192.43.241.0 – 192.43.241.255 | 256 | US |
allocated | 1988-12-21 | b6ab9b1a769f… |
| 131.16.0.0 – 131.16.255.255 | 65,536 | US |
allocated | 1988-12-20 | 45fe880b68a8… |
| 131.17.0.0 – 131.17.255.255 | 65,536 | US |
allocated | 1988-12-20 | 45fe880b68a8… |
| 131.19.0.0 – 131.19.255.255 | 65,536 | US |
allocated | 1988-12-20 | 45fe880b68a8… |
| 131.21.0.0 – 131.21.255.255 | 65,536 | US |
allocated | 1988-12-20 | 45fe880b68a8… |
| 131.29.0.0 – 131.29.255.255 | 65,536 | US |
allocated | 1988-12-20 | 45fe880b68a8… |
| 131.31.0.0 – 131.31.255.255 | 65,536 | US |
allocated | 1988-12-20 | 45fe880b68a8… |
| 131.32.0.0 – 131.32.255.255 | 65,536 | US |
allocated | 1988-12-20 | 45fe880b68a8… |
| 132.63.0.0 – 132.63.255.255 | 65,536 | US |
allocated | 1988-12-20 | 45fe880b68a8… |
| 192.43.237.0 – 192.43.237.255 | 256 | US |
allocated | 1988-12-20 | dd96e0ac3e2e… |
| 192.46.0.0 – 192.46.31.255 | 8,192 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.32.0 – 192.46.39.255 | 2,048 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.40.0 – 192.46.41.255 | 512 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.42.0 – 192.46.42.255 | 256 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.43.0 – 192.46.43.255 | 256 | US |
allocated | 1988-12-20 | d421c651a84f… |
| 192.46.44.0 – 192.46.47.255 | 1,024 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.48.0 – 192.46.51.255 | 1,024 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.52.0 – 192.46.53.255 | 512 | US |
allocated | 1988-12-20 | d421c651a84f… |
| 192.46.54.0 – 192.46.54.255 | 256 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.55.0 – 192.46.55.255 | 256 | US |
allocated | 1988-12-20 | d421c651a84f… |
| 192.46.56.0 – 192.46.63.255 | 2,048 | US |
allocated | 1988-12-20 | d421c651a84f… |
| 192.46.64.0 – 192.46.67.255 | 1,024 | US |
allocated | 1988-12-20 | 1e6aecf01600… |
| 192.46.68.0 – 192.46.71.255 | 1,024 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.72.0 – 192.46.75.255 | 1,024 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.76.0 – 192.46.77.255 | 512 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.78.0 – 192.46.78.255 | 256 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.79.0 – 192.46.79.255 | 256 | US |
allocated | 1988-12-20 | d421c651a84f… |
| 192.46.80.0 – 192.46.81.255 | 512 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.82.0 – 192.46.83.255 | 512 | US |
allocated | 1988-12-20 | d421c651a84f… |
| 192.46.84.0 – 192.46.87.255 | 1,024 | US |
allocated | 1988-12-20 | 1e6aecf01600… |
| 192.46.88.0 – 192.46.88.255 | 256 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.89.0 – 192.46.89.255 | 256 | US |
allocated | 1988-12-20 | d421c651a84f… |
| 192.46.90.0 – 192.46.91.255 | 512 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.92.0 – 192.46.95.255 | 1,024 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.96.0 – 192.46.103.255 | 2,048 | US |
allocated | 1988-12-20 | d421c651a84f… |
| 192.46.104.0 – 192.46.107.255 | 1,024 | US |
allocated | 1988-12-20 | 1e6aecf01600… |
| 192.46.108.0 – 192.46.109.255 | 512 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.110.0 – 192.46.111.255 | 512 | US |
allocated | 1988-12-20 | d421c651a84f… |
| 192.46.112.0 – 192.46.127.255 | 4,096 | US |
allocated | 1988-12-20 | d421c651a84f… |
| 192.46.128.0 – 192.46.143.255 | 4,096 | CA |
allocated | 1988-12-20 | 1e270c48a8b7… |
| 192.46.144.0 – 192.46.151.255 | 2,048 | US |
allocated | 1988-12-20 | d421c651a84f… |
| 192.46.152.0 – 192.46.152.255 | 256 | US |
allocated | 1988-12-20 | d421c651a84f… |
| 192.46.153.0 – 192.46.153.255 | 256 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.154.0 – 192.46.155.255 | 512 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.156.0 – 192.46.156.255 | 256 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.157.0 – 192.46.157.255 | 256 | US |
allocated | 1988-12-20 | 501eb4ea8218… |
| 192.46.158.0 – 192.46.159.255 | 512 | US |
allocated | 1988-12-20 | d421c651a84f… |
| 192.46.160.0 – 192.46.160.255 | 256 | US |
allocated | 1988-12-20 | d421c651a84f… |
| 192.46.161.0 – 192.46.161.255 | 256 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.162.0 – 192.46.163.255 | 512 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.164.0 – 192.46.167.255 | 1,024 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.168.0 – 192.46.169.255 | 512 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.170.0 – 192.46.170.255 | 256 | US |
allocated | 1988-12-20 | d421c651a84f… |
| 192.46.171.0 – 192.46.171.255 | 256 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.172.0 – 192.46.175.255 | 1,024 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.176.0 – 192.46.179.255 | 1,024 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.180.0 – 192.46.183.255 | 1,024 | US |
allocated | 1988-12-20 | 1e6aecf01600… |
| 192.46.192.0 – 192.46.192.255 | 256 | US |
allocated | 1988-12-20 | d421c651a84f… |
| 192.46.193.0 – 192.46.193.255 | 256 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.194.0 – 192.46.195.255 | 512 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.196.0 – 192.46.199.255 | 1,024 | US |
allocated | 1988-12-20 | 1e6aecf01600… |
| 192.46.204.0 – 192.46.205.255 | 512 | US |
allocated | 1988-12-20 | d421c651a84f… |
| 192.46.206.0 – 192.46.207.255 | 512 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.240.0 – 192.46.241.255 | 512 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.242.0 – 192.46.242.255 | 256 | US |
allocated | 1988-12-20 | d421c651a84f… |
| 192.46.243.0 – 192.46.243.255 | 256 | US |
allocated | 1988-12-20 | 4a34b9f7ce6e… |
| 192.46.244.0 – 192.46.247.255 | 1,024 | US |
allocated | 1988-12-20 | 1e6aecf01600… |
| 192.46.248.0 – 192.46.249.255 | 512 | US |
allocated | 1988-12-20 | d421c651a84f… |