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
1,645,875,712
📦
IPv4 networks
76,665
delegated blocks
🧭
IPv6 networks
11,326
delegated blocks
🔗
Autonomous systems
34,014
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 192.31.191.0 – 192.31.191.255 | 256 |  US |
allocated | 1987-11-03 | dc4cb7a599e4… |
| 192.33.19.0 – 192.33.19.255 | 256 | US |
allocated | 1987-11-03 | ff94d48ffa2e… |
| 192.33.20.0 – 192.33.20.255 | 256 | US |
allocated | 1987-11-03 | 396c983d4290… |
| 129.100.0.0 – 129.100.255.255 | 65,536 |  CA |
allocated | 1987-10-27 | ee5fd35e438b… |
| 192.33.13.0 – 192.33.13.255 | 256 | US |
allocated | 1987-10-26 | 45fe880b68a8… |
| 129.97.0.0 – 129.97.255.255 | 65,536 | CA |
allocated | 1987-10-25 | e5f8ae47ad61… |
| 129.99.0.0 – 129.99.255.255 | 65,536 | US |
allocated | 1987-10-25 | 2d90cbf4f78e… |
| 192.33.3.0 – 192.33.3.255 | 256 | US |
allocated | 1987-10-22 | 45fe880b68a8… |
| 192.33.4.0 – 192.33.4.255 | 256 | US |
allocated | 1987-10-22 | 37fe01d6d027… |
| 192.33.5.0 – 192.33.5.255 | 256 | US |
allocated | 1987-10-22 | 45fe880b68a8… |
| 192.33.6.0 – 192.33.6.255 | 256 | US |
allocated | 1987-10-22 | 45fe880b68a8… |
| 192.33.7.0 – 192.33.7.255 | 256 | US |
allocated | 1987-10-22 | 45fe880b68a8… |
| 192.33.8.0 – 192.33.8.255 | 256 | US |
allocated | 1987-10-22 | 45fe880b68a8… |
| 192.33.9.0 – 192.33.9.255 | 256 | US |
allocated | 1987-10-22 | 45fe880b68a8… |
| 192.33.12.0 – 192.33.12.255 | 256 | US |
allocated | 1987-10-22 | dd2086d3d24a… |
| 129.91.0.0 – 129.91.255.255 | 65,536 | US |
allocated | 1987-10-16 | ace55d4dc090… |
| 129.92.0.0 – 129.92.255.255 | 65,536 | US |
allocated | 1987-10-16 | 45fe880b68a8… |
| 129.83.0.0 – 129.83.255.255 | 65,536 | US |
allocated | 1987-10-15 | e46d50b27c27… |
| 129.84.0.0 – 129.84.255.255 | 65,536 | US |
allocated | 1987-10-15 | 5f6095e5c918… |
| 129.85.0.0 – 129.85.255.255 | 65,536 | US |
allocated | 1987-10-15 | adbcede530a9… |
| 129.86.0.0 – 129.86.255.255 | 65,536 | US |
allocated | 1987-10-15 | 58a1842e4fc7… |
| 129.87.0.0 – 129.87.255.255 | 65,536 | US |
allocated | 1987-10-15 | d8d7984745a8… |
| 129.89.0.0 – 129.89.255.255 | 65,536 | US |
allocated | 1987-10-15 | c6f625721eec… |
| 129.81.0.0 – 129.81.255.255 | 65,536 | US |
allocated | 1987-10-11 | 1530af5152e6… |
| 129.82.0.0 – 129.82.255.255 | 65,536 | US |
allocated | 1987-10-11 | e6fd339d7ca6… |
| 129.80.0.0 – 129.80.255.255 | 65,536 | US |
allocated | 1987-10-09 | ace55d4dc090… |
| 192.31.247.0 – 192.31.247.255 | 256 | US |
allocated | 1987-10-09 | 8af51805f846… |
| 192.31.250.0 – 192.31.250.255 | 256 | US |
allocated | 1987-10-09 | cee82f83f5e1… |
| 192.31.253.0 – 192.31.253.255 | 256 | US |
allocated | 1987-10-09 | 03772d84e56b… |
| 192.31.254.0 – 192.31.254.255 | 256 | US |
allocated | 1987-10-09 | b519a4c43953… |
| 192.33.2.0 – 192.33.2.255 | 256 | US |
allocated | 1987-10-09 | 68597a1a86da… |
| 192.33.37.0 – 192.33.37.255 | 256 | US |
allocated | 1987-10-08 | e1ed1885c9ce… |
| 192.33.38.0 – 192.33.39.255 | 512 | US |
allocated | 1987-10-08 | e1ed1885c9ce… |
| 192.33.40.0 – 192.33.47.255 | 2,048 | US |
allocated | 1987-10-08 | e1ed1885c9ce… |
| 192.33.48.0 – 192.33.63.255 | 4,096 | US |
allocated | 1987-10-08 | e1ed1885c9ce… |
| 192.33.64.0 – 192.33.79.255 | 4,096 | US |
allocated | 1987-10-08 | e1ed1885c9ce… |
| 192.33.80.0 – 192.33.83.255 | 1,024 | US |
allocated | 1987-10-08 | e1ed1885c9ce… |
| 192.33.84.0 – 192.33.85.255 | 512 | US |
allocated | 1987-10-08 | e1ed1885c9ce… |
| 192.33.86.0 – 192.33.86.255 | 256 | US |
allocated | 1987-10-08 | e1ed1885c9ce… |
| 192.31.248.0 – 192.31.248.255 | 256 | US |
allocated | 1987-10-04 | 511940fba711… |
| 192.31.249.0 – 192.31.249.255 | 256 | US |
allocated | 1987-10-04 | dec128ff6f4c… |
| 129.79.0.0 – 129.79.255.255 | 65,536 | US |
allocated | 1987-10-02 | 6130c4b96fdd… |
| 192.33.33.0 – 192.33.33.255 | 256 | US |
allocated | 1987-09-30 | 2784ce9dbeb2… |
| 192.33.35.0 – 192.33.35.255 | 256 | US |
allocated | 1987-09-30 | 2f87fb0bfbf9… |
| 129.76.0.0 – 129.76.255.255 | 65,536 | US |
allocated | 1987-09-25 | f4bbbc91e7ce… |
| 192.31.241.0 – 192.31.241.255 | 256 | US |
allocated | 1987-09-24 | 2d90cbf4f78e… |
| 192.31.238.0 – 192.31.238.255 | 256 | US |
allocated | 1987-09-23 | 45fe880b68a8… |
| 192.31.239.0 – 192.31.239.255 | 256 | US |
allocated | 1987-09-23 | 45fe880b68a8… |
| 192.31.240.0 – 192.31.240.255 | 256 | US |
allocated | 1987-09-23 | 7c59fe987281… |
| 129.71.0.0 – 129.71.255.255 | 65,536 | US |
allocated | 1987-09-22 | 5584802f8691… |
| 129.72.0.0 – 129.72.255.255 | 65,536 | US |
allocated | 1987-09-22 | f3c851a0425c… |
| 192.31.235.0 – 192.31.235.255 | 256 | US |
allocated | 1987-09-22 | ee26b48ac5e2… |
| 192.31.236.0 – 192.31.236.255 | 256 | US |
allocated | 1987-09-22 | b7f4dbefd517… |
| 192.31.233.0 – 192.31.233.255 | 256 | US |
allocated | 1987-09-19 | ae4602ef189f… |
| 192.31.232.0 – 192.31.232.255 | 256 | US |
allocated | 1987-09-16 | 1487df4fd17d… |
| 192.31.227.0 – 192.31.227.255 | 256 | US |
allocated | 1987-09-11 | 9cae29406a59… |
| 192.31.230.0 – 192.31.230.255 | 256 | US |
allocated | 1987-09-11 | 51d9a9df21c3… |
| 192.31.225.0 – 192.31.225.255 | 256 | US |
allocated | 1987-09-09 | 45fe880b68a8… |
| 192.31.226.0 – 192.31.226.255 | 256 | US |
allocated | 1987-09-09 | 45fe880b68a8… |
| 129.68.0.0 – 129.68.255.255 | 65,536 | US |
allocated | 1987-09-08 | 326dd7381855… |
| 192.31.217.0 – 192.31.217.255 | 256 | US |
allocated | 1987-09-08 | 6dd814657e30… |
| 192.31.218.0 – 192.31.218.255 | 256 | US |
allocated | 1987-09-08 | 6dd814657e30… |
| 192.31.219.0 – 192.31.219.255 | 256 | US |
allocated | 1987-09-08 | 6dd814657e30… |
| 192.31.220.0 – 192.31.220.255 | 256 | US |
allocated | 1987-09-08 | 6dd814657e30… |
| 192.31.221.0 – 192.31.221.255 | 256 | US |
allocated | 1987-09-08 | 6dd814657e30… |
| 192.31.222.0 – 192.31.222.255 | 256 | US |
allocated | 1987-09-08 | 30b5ca67d880… |
| 129.66.0.0 – 129.66.255.255 | 65,536 | US |
allocated | 1987-09-05 | 67dbee9e775b… |
| 129.64.0.0 – 129.64.255.255 | 65,536 | US |
allocated | 1987-09-04 | a3e57da087ce… |
| 129.65.0.0 – 129.65.255.255 | 65,536 | US |
allocated | 1987-09-04 | bae608539371… |
| 129.62.0.0 – 129.62.255.255 | 65,536 | US |
allocated | 1987-09-01 | 24599e5446be… |
| 129.63.0.0 – 129.63.255.255 | 65,536 | US |
allocated | 1987-09-01 | 880d289bce3f… |
| 129.61.0.0 – 129.61.255.255 | 65,536 | US |
allocated | 1987-08-31 | 45fe880b68a8… |
| 192.31.210.0 – 192.31.210.255 | 256 | US |
allocated | 1987-08-30 | b685007a3aa4… |
| 192.31.175.0 – 192.31.175.255 | 256 | US |
allocated | 1987-08-21 | 4aa82cb7ec18… |
| 192.31.176.0 – 192.31.176.255 | 256 | US |
allocated | 1987-08-21 | c57d541ff302… |
| 129.59.0.0 – 129.59.255.255 | 65,536 | US |
allocated | 1987-08-17 | 8a06210186dd… |
| 129.58.0.0 – 129.58.255.255 | 65,536 | US |
allocated | 1987-08-07 | d2cb182d1e42… |
| 129.51.0.0 – 129.51.255.255 | 65,536 | US |
allocated | 1987-08-06 | 45fe880b68a8… |
| 129.52.0.0 – 129.52.255.255 | 65,536 | US |
allocated | 1987-08-06 | 45fe880b68a8… |
| 129.54.0.0 – 129.54.255.255 | 65,536 | US |
allocated | 1987-08-06 | 45fe880b68a8… |
| 129.55.0.0 – 129.55.255.255 | 65,536 | US |
allocated | 1987-08-06 | 9b41255c6e4f… |
| 129.50.0.0 – 129.50.255.255 | 65,536 | US |
allocated | 1987-08-05 | 2d90cbf4f78e… |
| 192.31.164.0 – 192.31.164.255 | 256 | US |
allocated | 1987-08-04 | e46d50b27c27… |
| 129.49.0.0 – 129.49.255.255 | 65,536 | US |
allocated | 1987-08-03 | 43d4350210d5… |
| 129.46.0.0 – 129.46.255.255 | 65,536 | US |
allocated | 1987-07-31 | f98fd00a1324… |
| 129.48.0.0 – 129.48.255.255 | 65,536 | US |
allocated | 1987-07-31 | 45fe880b68a8… |
| 129.41.0.0 – 129.41.31.255 | 8,192 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.32.0 – 129.41.35.255 | 1,024 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.36.0 – 129.41.39.255 | 1,024 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.40.0 – 129.41.41.255 | 512 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.42.0 – 129.41.42.255 | 256 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.43.0 – 129.41.43.255 | 256 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.44.0 – 129.41.44.255 | 256 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.45.0 – 129.41.45.255 | 256 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.46.0 – 129.41.47.255 | 512 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.48.0 – 129.41.51.255 | 1,024 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.52.0 – 129.41.52.255 | 256 | US |
allocated | 1987-07-29 | 31caea8da158… |
| 129.41.53.0 – 129.41.53.255 | 256 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.54.0 – 129.41.55.255 | 512 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |
| 129.41.56.0 – 129.41.59.255 | 1,024 | US |
allocated | 1987-07-29 | 01ded2cfbf92… |