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
1,645,666,816
📦
IPv4 networks
76,690
delegated blocks
🧭
IPv6 networks
11,349
delegated blocks
🔗
Autonomous systems
34,029
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 173.242.128.0 – 173.242.143.255 | 4,096 |  US |
allocated | 2010-05-07 | 0f3361e2d6ff… |
| 173.242.144.0 – 173.242.159.255 | 4,096 | US |
allocated | 2010-05-07 | ff2640d74dc4… |
| 173.242.160.0 – 173.242.175.255 | 4,096 | US |
allocated | 2010-05-07 | f1fae96caa7e… |
| 199.255.4.0 – 199.255.7.255 | 1,024 | US |
allocated | 2010-05-07 | 3c7e92f8e19c… |
| 173.238.0.0 – 173.238.255.255 | 65,536 |  CA |
allocated | 2010-05-06 | 7f8d2810def2… |
| 173.239.192.0 – 173.239.255.255 | 16,384 | US |
allocated | 2010-05-06 | 1cea909849f1… |
| 173.242.80.0 – 173.242.95.255 | 4,096 | US |
allocated | 2010-05-06 | e8e4d025b357… |
| 173.242.96.0 – 173.242.111.255 | 4,096 | US |
allocated | 2010-05-06 | f57036a35d7c… |
| 173.248.0.0 – 173.248.63.255 | 16,384 | US |
allocated | 2010-05-06 | 08d2fcd58aaa… |
| 199.204.232.0 – 199.204.239.255 | 2,048 |  VG |
allocated | 2010-05-06 | aace446c6293… |
| 199.204.240.0 – 199.204.247.255 | 2,048 | US |
allocated | 2010-05-06 | 1146517d48fa… |
| 199.204.248.0 – 199.204.255.255 | 2,048 | US |
allocated | 2010-05-06 | a6b65597e29a… |
| 199.255.0.0 – 199.255.3.255 | 1,024 | US |
allocated | 2010-05-06 | d5302dda23da… |
| 173.242.32.0 – 173.242.47.255 | 4,096 | US |
allocated | 2010-05-05 | e220ed812a4c… |
| 173.242.64.0 – 173.242.79.255 | 4,096 | US |
allocated | 2010-05-05 | a9dcab1f0d90… |
| 199.204.216.0 – 199.204.223.255 | 2,048 | US |
allocated | 2010-05-05 | 31caea8da158… |
| 199.204.224.0 – 199.204.227.255 | 1,024 | US |
allocated | 2010-05-05 | 2fb2516dd7e0… |
| 24.50.64.0 – 24.50.127.255 | 16,384 | CA |
allocated | 2010-05-04 | df04ba7e5e16… |
| 199.204.188.0 – 199.204.191.255 | 1,024 | US |
allocated | 2010-05-04 | dbc77667f33c… |
| 199.204.208.0 – 199.204.209.255 | 512 | CA |
allocated | 2010-05-04 | a081b30ad4e7… |
| 199.204.212.0 – 199.204.213.255 | 512 | CA |
allocated | 2010-05-04 | a081b30ad4e7… |
| 199.204.214.0 – 199.204.214.255 | 256 | CA |
allocated | 2010-05-04 | a081b30ad4e7… |
| 173.242.16.0 – 173.242.31.255 | 4,096 | US |
allocated | 2010-05-03 | 0d72186b4f4f… |
| 173.244.160.0 – 173.244.191.255 | 8,192 | US |
allocated | 2010-05-03 | c7deffe80dbd… |
| 199.204.200.0 – 199.204.207.255 | 2,048 | US |
allocated | 2010-05-03 | adc8b004b305… |
| 173.241.240.0 – 173.241.255.255 | 4,096 | US |
allocated | 2010-04-30 | 83ea10a0e5c8… |
| 173.242.0.0 – 173.242.15.255 | 4,096 | US |
allocated | 2010-04-30 | 3b2f0eed6caf… |
| 173.244.96.0 – 173.244.111.255 | 4,096 | US |
allocated | 2010-04-30 | ac66b9e20be8… |
| 199.204.176.0 – 199.204.183.255 | 2,048 | US |
allocated | 2010-04-30 | ba1b20a735aa… |
| 173.241.192.0 – 173.241.207.255 | 4,096 | US |
allocated | 2010-04-29 | 65bf32d2bf46… |
| 173.241.208.0 – 173.241.223.255 | 4,096 | US |
allocated | 2010-04-29 | 34d342be0361… |
| 173.241.224.0 – 173.241.239.255 | 4,096 | US |
allocated | 2010-04-29 | fe1bf20bce56… |
| 173.241.176.0 – 173.241.191.255 | 4,096 | US |
allocated | 2010-04-28 | 443db4889f6d… |
| 173.241.160.0 – 173.241.175.255 | 4,096 | US |
allocated | 2010-04-27 | 9114aae50d71… |
| 199.204.164.0 – 199.204.167.255 | 1,024 | US |
allocated | 2010-04-27 | 8838d4cbb6d0… |
| 199.204.168.0 – 199.204.171.255 | 1,024 | US |
allocated | 2010-04-27 | f7289a8dd6ae… |
| 173.241.96.0 – 173.241.111.255 | 4,096 | CA |
allocated | 2010-04-26 | 495afa61156d… |
| 173.241.112.0 – 173.241.127.255 | 4,096 | US |
allocated | 2010-04-26 | 71eaf03ecf78… |
| 173.241.128.0 – 173.241.143.255 | 4,096 | US |
allocated | 2010-04-26 | a405c25938ed… |
| 173.241.144.0 – 173.241.159.255 | 4,096 | US |
allocated | 2010-04-26 | 6f62d0c457ae… |
| 173.241.48.0 – 173.241.63.255 | 4,096 | US |
allocated | 2010-04-23 | 698d8f58188d… |
| 173.241.64.0 – 173.241.79.255 | 4,096 | US |
allocated | 2010-04-23 | 02c575706adf… |
| 173.241.80.0 – 173.241.95.255 | 4,096 | US |
allocated | 2010-04-23 | f0fffbbdcdec… |
| 173.244.64.0 – 173.244.79.255 | 4,096 | US |
allocated | 2010-04-23 | 67ce42f5d914… |
| 199.204.156.0 – 199.204.159.255 | 1,024 | US |
allocated | 2010-04-23 | 54ed1582ba34… |
| 173.241.32.0 – 173.241.47.255 | 4,096 | CA |
allocated | 2010-04-22 | 2fb44b3832f9… |
| 199.204.136.0 – 199.204.139.255 | 1,024 | US |
allocated | 2010-04-22 | 92f3d088c118… |
| 199.204.144.0 – 199.204.151.255 | 2,048 | US |
allocated | 2010-04-22 | 0b05899d0922… |
| 173.241.16.0 – 173.241.31.255 | 4,096 | US |
allocated | 2010-04-21 | dce0f3395f69… |
| 173.244.32.0 – 173.244.63.255 | 8,192 | US |
allocated | 2010-04-21 | 1cea909849f1… |
| 199.204.132.0 – 199.204.135.255 | 1,024 | US |
allocated | 2010-04-21 | ba3e9c605d44… |
| 173.239.128.0 – 173.239.191.255 | 16,384 | CA |
allocated | 2010-04-20 | dcd08486c35a… |
| 173.241.0.0 – 173.241.15.255 | 4,096 | US |
allocated | 2010-04-20 | f35d20ccafc6… |
| 173.244.0.0 – 173.244.31.255 | 8,192 | US |
allocated | 2010-04-20 | 212263b6b7e1… |
| 184.94.0.0 – 184.94.127.255 | 32,768 | US |
allocated | 2010-04-20 | 34d342be0361… |
| 199.204.124.0 – 199.204.127.255 | 1,024 | US |
allocated | 2010-04-20 | d538268083a4… |
| 199.204.128.0 – 199.204.131.255 | 1,024 | CA |
allocated | 2010-04-20 | ff4a1b58f0d7… |
| 173.240.240.0 – 173.240.255.255 | 4,096 | US |
allocated | 2010-04-19 | 0a9e86466475… |
| 199.204.104.0 – 199.204.107.255 | 1,024 | US |
allocated | 2010-04-19 | c848d1398648… |
| 199.204.108.0 – 199.204.111.255 | 1,024 | US |
allocated | 2010-04-19 | e16a629ac13f… |
| 199.204.112.0 – 199.204.119.255 | 2,048 | US |
allocated | 2010-04-19 | 5687150b70fd… |
| 173.240.128.0 – 173.240.143.255 | 4,096 | US |
allocated | 2010-04-16 | 993b246bacaa… |
| 173.240.192.0 – 173.240.207.255 | 4,096 | US |
allocated | 2010-04-16 | 03baf6d4b3df… |
| 173.240.208.0 – 173.240.223.255 | 4,096 | US |
allocated | 2010-04-16 | 624b15e9838a… |
| 173.240.224.0 – 173.240.239.255 | 4,096 | US |
allocated | 2010-04-16 | c8c8097ae882… |
| 199.204.100.0 – 199.204.103.255 | 1,024 | US |
allocated | 2010-04-16 | 044dc12678e7… |
| 173.240.176.0 – 173.240.191.255 | 4,096 | CA |
allocated | 2010-04-15 | aa1284f96cc4… |
| 24.244.96.0 – 24.244.111.255 | 4,096 | US |
allocated | 2010-04-14 | 349c08bee670… |
| 64.64.192.0 – 64.64.199.255 | 2,048 | US |
allocated | 2010-04-13 | 10c0ebb252b4… |
| 64.64.200.0 – 64.64.201.255 | 512 | US |
allocated | 2010-04-13 | 10c0ebb252b4… |
| 64.64.206.0 – 64.64.207.255 | 512 | US |
allocated | 2010-04-13 | 10c0ebb252b4… |
| 64.64.208.0 – 64.64.209.255 | 512 | US |
allocated | 2010-04-13 | 10c0ebb252b4… |
| 64.64.211.0 – 64.64.211.255 | 256 | US |
allocated | 2010-04-13 | 10c0ebb252b4… |
| 64.64.218.0 – 64.64.219.255 | 512 | US |
allocated | 2010-04-13 | 10c0ebb252b4… |
| 64.64.220.0 – 64.64.223.255 | 1,024 | US |
allocated | 2010-04-13 | 10c0ebb252b4… |
| 173.240.112.0 – 173.240.127.255 | 4,096 | US |
allocated | 2010-04-13 | 21f46be9f857… |
| 199.204.60.0 – 199.204.63.255 | 1,024 | US |
allocated | 2010-04-13 | 9c6dfd87d28d… |
| 199.204.64.0 – 199.204.71.255 | 2,048 | CA |
allocated | 2010-04-13 | 1bcdbf22099c… |
| 199.204.72.0 – 199.204.79.255 | 2,048 | CA |
allocated | 2010-04-13 | ee9456ce297c… |
| 173.239.64.0 – 173.239.79.255 | 4,096 | US |
allocated | 2010-04-12 | 4ede0c8fb611… |
| 184.144.0.0 – 184.147.255.255 | 262,144 | CA |
allocated | 2010-04-12 | 7de51f8320f6… |
| 184.148.0.0 – 184.149.255.255 | 131,072 | CA |
allocated | 2010-04-12 | 7de51f8320f6… |
| 184.150.0.0 – 184.150.127.255 | 32,768 | CA |
allocated | 2010-04-12 | 7de51f8320f6… |
| 184.150.128.0 – 184.150.191.255 | 16,384 | CA |
allocated | 2010-04-12 | 7de51f8320f6… |
| 184.150.192.0 – 184.150.207.255 | 4,096 | CA |
allocated | 2010-04-12 | 7de51f8320f6… |
| 184.150.208.0 – 184.150.215.255 | 2,048 | CA |
allocated | 2010-04-12 | 7de51f8320f6… |
| 184.150.216.0 – 184.150.219.255 | 1,024 | CA |
allocated | 2010-04-12 | 7de51f8320f6… |
| 184.150.220.0 – 184.150.220.255 | 256 | US |
allocated | 2010-04-12 | fca460f9d966… |
| 184.150.221.0 – 184.150.221.255 | 256 | CA |
allocated | 2010-04-12 | 7de51f8320f6… |
| 184.150.222.0 – 184.150.223.255 | 512 | CA |
allocated | 2010-04-12 | 7de51f8320f6… |
| 184.150.224.0 – 184.150.227.255 | 1,024 | CA |
allocated | 2010-04-12 | 7de51f8320f6… |
| 184.150.228.0 – 184.150.229.255 | 512 | CA |
allocated | 2010-04-12 | 7de51f8320f6… |
| 184.150.230.0 – 184.150.230.255 | 256 | CA |
allocated | 2010-04-12 | 7de51f8320f6… |
| 184.150.231.0 – 184.150.231.255 | 256 | US |
allocated | 2010-04-12 | fca460f9d966… |
| 184.150.232.0 – 184.150.239.255 | 2,048 | US |
allocated | 2010-04-12 | fca460f9d966… |
| 184.150.240.0 – 184.150.255.255 | 4,096 | CA |
allocated | 2010-04-12 | 7de51f8320f6… |
| 184.151.0.0 – 184.151.255.255 | 65,536 | CA |
allocated | 2010-04-12 | 7de51f8320f6… |
| 199.204.44.0 – 199.204.47.255 | 1,024 | CA |
allocated | 2010-04-12 | c7f5d0dc3164… |
| 199.204.48.0 – 199.204.55.255 | 2,048 | CA |
allocated | 2010-04-12 | 0aaa9e1ec868… |
| 199.204.56.0 – 199.204.59.255 | 1,024 | US |
allocated | 2010-04-12 | bfd750842701… |