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
1,644,931,584
📦
IPv4 networks
76,754
delegated blocks
🧭
IPv6 networks
11,445
delegated blocks
🔗
Autonomous systems
34,119
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 131.229.0.0 – 131.229.127.255 | 32,768 |  US |
allocated | 1989-01-27 | 2a10cb2b9cdc… |
| 192.48.81.0 – 192.48.81.255 | 256 | US |
allocated | 1989-01-26 | 00f10268e827… |
| 192.48.40.0 – 192.48.47.255 | 2,048 | US |
allocated | 1989-01-25 | 7c272239f8f0… |
| 192.48.48.0 – 192.48.63.255 | 4,096 | US |
allocated | 1989-01-25 | 7c272239f8f0… |
| 192.48.64.0 – 192.48.71.255 | 2,048 | US |
allocated | 1989-01-25 | 7c272239f8f0… |
| 192.48.72.0 – 192.48.75.255 | 1,024 | US |
allocated | 1989-01-25 | 7c272239f8f0… |
| 192.48.76.0 – 192.48.76.255 | 256 | US |
allocated | 1989-01-25 | 7c272239f8f0… |
| 192.48.78.0 – 192.48.78.255 | 256 | US |
allocated | 1989-01-25 | 45fe880b68a8… |
| 192.48.80.0 – 192.48.80.255 | 256 | US |
allocated | 1989-01-25 | 2784ce9dbeb2… |
| 131.215.0.0 – 131.215.255.255 | 65,536 | US |
allocated | 1989-01-19 | e8d4bb82379d… |
| 131.216.0.0 – 131.216.255.255 | 65,536 | US |
allocated | 1989-01-19 | 3e1231fe0f3c… |
| 131.218.0.0 – 131.218.255.255 | 65,536 | US |
allocated | 1989-01-19 | 45fe880b68a8… |
| 131.219.0.0 – 131.219.255.255 | 65,536 | US |
allocated | 1989-01-19 | 720610ba117e… |
| 192.48.34.0 – 192.48.34.255 | 256 | US |
allocated | 1989-01-18 | 981d75d0be57… |
| 131.210.0.0 – 131.210.255.255 | 65,536 | US |
allocated | 1989-01-17 | dcf3f124eb95… |
| 131.212.0.0 – 131.212.255.255 | 65,536 | US |
allocated | 1989-01-17 | 252351fbc17c… |
| 129.117.0.0 – 129.117.255.255 | 65,536 | US |
allocated | 1989-01-16 | 5942bda53f50… |
| 131.208.0.0 – 131.208.255.255 | 65,536 | US |
allocated | 1989-01-16 | 2c8b166870cf… |
| 131.209.0.0 – 131.209.255.255 | 65,536 | US |
allocated | 1989-01-16 | 2c1250a09af7… |
| 192.47.254.0 – 192.47.254.255 | 256 | US |
allocated | 1989-01-16 | 2784ce9dbeb2… |
| 192.48.0.0 – 192.48.15.255 | 4,096 | US |
allocated | 1989-01-16 | e1ed1885c9ce… |
| 192.48.16.0 – 192.48.23.255 | 2,048 | US |
allocated | 1989-01-16 | e1ed1885c9ce… |
| 192.48.24.0 – 192.48.27.255 | 1,024 | US |
allocated | 1989-01-16 | e1ed1885c9ce… |
| 192.48.28.0 – 192.48.29.255 | 512 | US |
allocated | 1989-01-16 | e1ed1885c9ce… |
| 192.48.30.0 – 192.48.30.255 | 256 | US |
allocated | 1989-01-16 | e1ed1885c9ce… |
| 192.42.243.0 – 192.42.243.255 | 256 | US |
allocated | 1989-01-13 | 4d9a37608d72… |
| 192.52.67.0 – 192.52.67.255 | 256 | US |
allocated | 1989-01-13 | 4d9a37608d72… |
| 192.52.68.0 – 192.52.68.255 | 256 | US |
allocated | 1989-01-13 | 4d9a37608d72… |
| 192.52.69.0 – 192.52.69.255 | 256 | US |
allocated | 1989-01-13 | bc7b23b81b71… |
| 192.43.254.0 – 192.43.254.255 | 256 | US |
allocated | 1989-01-12 | 7a7281e9b52f… |
| 192.44.253.0 – 192.44.253.255 | 256 | US |
allocated | 1989-01-12 | 45fe880b68a8… |
| 192.47.242.0 – 192.47.242.255 | 256 | US |
allocated | 1989-01-12 | e46d50b27c27… |
| 192.47.243.0 – 192.47.243.255 | 256 | US |
allocated | 1989-01-12 | 2784ce9dbeb2… |
| 131.204.0.0 – 131.204.255.255 | 65,536 | US |
allocated | 1989-01-11 | c210fa1d6d30… |
| 192.43.252.0 – 192.43.252.255 | 256 | US |
allocated | 1989-01-11 | d57c1a0e7da3… |
| 192.43.253.0 – 192.43.253.255 | 256 | US |
allocated | 1989-01-11 | 45fe880b68a8… |
| 131.33.0.0 – 131.33.255.255 | 65,536 | US |
allocated | 1989-01-10 | 45fe880b68a8… |
| 131.35.0.0 – 131.35.255.255 | 65,536 | US |
allocated | 1989-01-10 | 45fe880b68a8… |
| 131.36.0.0 – 131.36.255.255 | 65,536 | US |
allocated | 1989-01-10 | 45fe880b68a8… |
| 131.40.0.0 – 131.40.255.255 | 65,536 | US |
allocated | 1989-01-10 | 45fe880b68a8… |
| 131.43.0.0 – 131.43.255.255 | 65,536 | US |
allocated | 1989-01-10 | 45fe880b68a8… |
| 131.201.0.0 – 131.201.255.255 | 65,536 | US |
allocated | 1989-01-10 | 39dc15d1b9cc… |
| 131.202.0.0 – 131.202.255.255 | 65,536 |  CA |
allocated | 1989-01-10 | 6ca4c1ceb36c… |
| 192.43.251.0 – 192.43.251.255 | 256 | US |
allocated | 1989-01-10 | fe3a20e9c47c… |
| 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… |