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
1,644,596,992
📦
IPv4 networks
76,794
delegated blocks
🧭
IPv6 networks
11,460
delegated blocks
🔗
Autonomous systems
34,157
ASNs
// browse the objects
Browse the ARIN registry
| Range | Addresses | Country | Status | Allocated | Org handle |
|---|---|---|---|---|---|
| 199.4.134.0 – 199.4.134.255 | 256 |  US |
allocated | 1993-12-06 | 4333e50aadb5… |
| 199.4.136.0 – 199.4.136.255 | 256 | US |
allocated | 1993-12-06 | f6320a7a8dfb… |
| 199.4.139.0 – 199.4.139.255 | 256 | US |
allocated | 1993-12-06 | 3d92be41a2fa… |
| 199.4.140.0 – 199.4.143.255 | 1,024 | US |
allocated | 1993-12-06 | 1e348f77afa0… |
| 199.4.145.0 – 199.4.145.255 | 256 | US |
allocated | 1993-12-06 | 76bddc28e515… |
| 199.4.146.0 – 199.4.147.255 | 512 | US |
allocated | 1993-12-06 | f318c319385c… |
| 199.4.148.0 – 199.4.148.255 | 256 | US |
allocated | 1993-12-06 | f2ba2dce0328… |
| 199.4.164.0 – 199.4.167.255 | 1,024 | US |
allocated | 1993-12-06 | 113e0a98bf6d… |
| 199.5.64.0 – 199.5.127.255 | 16,384 | US |
allocated | 1993-12-06 | 8ab4822cec44… |
| 199.68.32.0 – 199.68.47.255 | 4,096 | US |
allocated | 1993-12-06 | c61051e3e732… |
| 199.68.48.0 – 199.68.51.255 | 1,024 | US |
allocated | 1993-12-06 | c61051e3e732… |
| 199.68.52.0 – 199.68.52.255 | 256 | US |
allocated | 1993-12-06 | c61051e3e732… |
| 199.73.32.0 – 199.73.39.255 | 2,048 | US |
allocated | 1993-12-06 | 9f14454567a6… |
| 199.73.40.0 – 199.73.41.255 | 512 | US |
allocated | 1993-12-06 | 9f14454567a6… |
| 199.73.128.0 – 199.73.255.255 | 32,768 | US |
allocated | 1993-12-06 | a154379ac984… |
| 199.74.0.0 – 199.74.7.255 | 2,048 | US |
allocated | 1993-12-06 | 5e7685b67be6… |
| 199.74.8.0 – 199.74.11.255 | 1,024 | US |
allocated | 1993-12-06 | 72c8d1827d07… |
| 199.74.12.0 – 199.74.13.255 | 512 | US |
allocated | 1993-12-06 | 72c8d1827d07… |
| 199.74.14.0 – 199.74.14.255 | 256 | US |
allocated | 1993-12-06 | 72c8d1827d07… |
| 199.79.0.0 – 199.79.15.255 | 4,096 | US |
allocated | 1993-12-06 | 8ab4822cec44… |
| 199.80.16.0 – 199.80.23.255 | 2,048 | US |
allocated | 1993-12-06 | ba101049aa00… |
| 199.80.24.0 – 199.80.27.255 | 1,024 | US |
allocated | 1993-12-06 | ba101049aa00… |
| 166.105.0.0 – 166.105.255.255 | 65,536 | US |
allocated | 1993-12-03 | e5e3b9c13678… |
| 166.107.0.0 – 166.107.255.255 | 65,536 | US |
allocated | 1993-12-03 | d8d382893c81… |
| 198.252.231.0 – 198.252.231.255 | 256 | US |
allocated | 1993-12-03 | 5e7685b67be6… |
| 198.252.232.0 – 198.252.232.255 | 256 | US |
allocated | 1993-12-03 | ce6594a832ee… |
| 198.252.233.0 – 198.252.233.255 | 256 | US |
allocated | 1993-12-03 | 8d9ed68cd1bf… |
| 198.252.234.0 – 198.252.234.255 | 256 | US |
allocated | 1993-12-03 | a64dd43ee4f0… |
| 198.252.235.0 – 198.252.235.255 | 256 | US |
allocated | 1993-12-03 | 7183551a923a… |
| 198.252.236.0 – 198.252.236.255 | 256 | US |
allocated | 1993-12-03 | c9763820c3eb… |
| 198.252.237.0 – 198.252.237.255 | 256 | US |
allocated | 1993-12-03 | 48e1197d6962… |
| 198.252.238.0 – 198.252.239.255 | 512 | US |
allocated | 1993-12-03 | c0c75ac1bff5… |
| 198.252.240.0 – 198.252.241.255 | 512 | US |
allocated | 1993-12-03 | c0c75ac1bff5… |
| 198.252.242.0 – 198.252.243.255 | 512 | US |
allocated | 1993-12-03 | bc234ea1ec21… |
| 198.252.244.0 – 198.252.245.255 | 512 | US |
allocated | 1993-12-03 | 3d615c1f857f… |
| 198.252.246.0 – 198.252.247.255 | 512 | US |
allocated | 1993-12-03 | 551a0240298c… |
| 198.252.248.0 – 198.252.249.255 | 512 | US |
allocated | 1993-12-03 | 666daf70d41c… |
| 198.252.250.0 – 198.252.251.255 | 512 | US |
allocated | 1993-12-03 | 0b906c025e2d… |
| 198.252.252.0 – 198.252.253.255 | 512 | US |
allocated | 1993-12-03 | bd129bb6340a… |
| 198.252.254.0 – 198.252.254.255 | 256 | US |
allocated | 1993-12-03 | 6a2bec1ff1c3… |
| 199.4.128.0 – 199.4.128.255 | 256 | US |
allocated | 1993-12-03 | 6a2bec1ff1c3… |
| 199.10.112.0 – 199.10.112.255 | 256 | US |
allocated | 1993-12-03 | 965ac3a28a61… |
| 199.10.113.0 – 199.10.113.255 | 256 | US |
allocated | 1993-12-03 | 95b37edd8dd4… |
| 199.67.16.0 – 199.67.31.255 | 4,096 | US |
allocated | 1993-12-03 | fe4882a17987… |
| 199.74.16.0 – 199.74.31.255 | 4,096 | US |
allocated | 1993-12-03 | 88a52c9c162b… |
| 199.79.16.0 – 199.79.23.255 | 2,048 | US |
allocated | 1993-12-03 | f05c55e93dd9… |
| 199.79.24.0 – 199.79.27.255 | 1,024 | US |
allocated | 1993-12-03 | f05c55e93dd9… |
| 170.3.0.0 – 170.3.255.255 | 65,536 | US |
allocated | 1993-12-02 | 565f3f728d41… |
| 170.4.0.0 – 170.4.31.255 | 8,192 | US |
allocated | 1993-12-02 | 8fcabc3da36d… |
| 170.4.64.0 – 170.4.127.255 | 16,384 | US |
allocated | 1993-12-02 | 8fcabc3da36d… |
| 170.4.128.0 – 170.4.159.255 | 8,192 | US |
allocated | 1993-12-02 | 8fcabc3da36d… |
| 170.4.160.0 – 170.4.167.255 | 2,048 | US |
allocated | 1993-12-02 | 8fcabc3da36d… |
| 170.4.208.0 – 170.4.223.255 | 4,096 | US |
allocated | 1993-12-02 | 8fcabc3da36d… |
| 170.4.224.0 – 170.4.255.255 | 8,192 | US |
allocated | 1993-12-02 | 8fcabc3da36d… |
| 198.96.96.0 – 198.96.111.255 | 4,096 |  CA |
allocated | 1993-12-02 | 515abab64380… |
| 198.161.191.0 – 198.161.191.255 | 256 | CA |
allocated | 1993-12-02 | 337210023079… |
| 198.162.14.0 – 198.162.15.255 | 512 | CA |
allocated | 1993-12-02 | fc072907188c… |
| 198.162.24.0 – 198.162.31.255 | 2,048 | CA |
allocated | 1993-12-02 | d3f824815389… |
| 198.181.64.0 – 198.181.95.255 | 8,192 | US |
allocated | 1993-12-02 | e220ed812a4c… |
| 198.181.96.0 – 198.181.111.255 | 4,096 | US |
allocated | 1993-12-02 | e220ed812a4c… |
| 198.181.112.0 – 198.181.113.255 | 512 | US |
allocated | 1993-12-02 | e220ed812a4c… |
| 198.181.215.0 – 198.181.215.255 | 256 | US |
allocated | 1993-12-02 | 6fa90eb25d71… |
| 198.181.216.0 – 198.181.216.255 | 256 | US |
allocated | 1993-12-02 | 6fa90eb25d71… |
| 198.181.217.0 – 198.181.217.255 | 256 | US |
allocated | 1993-12-02 | d503a1b74be7… |
| 198.181.218.0 – 198.181.218.255 | 256 | US |
allocated | 1993-12-02 | f19c9dc2339e… |
| 198.181.219.0 – 198.181.219.255 | 256 | US |
allocated | 1993-12-02 | 76a246e317fa… |
| 198.181.220.0 – 198.181.220.255 | 256 | US |
allocated | 1993-12-02 | 1f9545eba7ed… |
| 198.181.221.0 – 198.181.221.255 | 256 | US |
allocated | 1993-12-02 | 6fac87da7641… |
| 198.181.222.0 – 198.181.222.255 | 256 | US |
allocated | 1993-12-02 | 88583a93188c… |
| 198.181.223.0 – 198.181.223.255 | 256 | US |
allocated | 1993-12-02 | 31cd5099ffa8… |
| 198.181.224.0 – 198.181.225.255 | 512 | US |
allocated | 1993-12-02 | 31cd5099ffa8… |
| 198.181.226.0 – 198.181.226.255 | 256 | US |
allocated | 1993-12-02 | 31cd5099ffa8… |
| 198.181.227.0 – 198.181.227.255 | 256 | US |
allocated | 1993-12-02 | fe8f0d17b75c… |
| 198.181.228.0 – 198.181.228.255 | 256 | US |
allocated | 1993-12-02 | 372437a9aa1d… |
| 198.181.229.0 – 198.181.229.255 | 256 | US |
allocated | 1993-12-02 | 3a144ccad35e… |
| 198.181.231.0 – 198.181.231.255 | 256 | US |
allocated | 1993-12-02 | ffb21d106bd0… |
| 198.181.232.0 – 198.181.232.255 | 256 | US |
allocated | 1993-12-02 | 20ed71cf5df4… |
| 198.181.233.0 – 198.181.233.255 | 256 | US |
allocated | 1993-12-02 | 10c7552e4324… |
| 198.181.234.0 – 198.181.235.255 | 512 | US |
allocated | 1993-12-02 | 10c7552e4324… |
| 198.181.236.0 – 198.181.236.255 | 256 | US |
allocated | 1993-12-02 | c324eb0ece9b… |
| 198.181.237.0 – 198.181.237.255 | 256 | US |
allocated | 1993-12-02 | cdd6cc8177fd… |
| 198.181.238.0 – 198.181.238.255 | 256 | US |
allocated | 1993-12-02 | 14f4039eb22f… |
| 198.181.239.0 – 198.181.239.255 | 256 | US |
allocated | 1993-12-02 | 74fc09884236… |
| 199.10.42.0 – 199.10.42.255 | 256 | US |
allocated | 1993-12-02 | 45fe880b68a8… |
| 199.10.43.0 – 199.10.43.255 | 256 | US |
allocated | 1993-12-02 | 45fe880b68a8… |
| 199.10.44.0 – 199.10.44.255 | 256 | US |
allocated | 1993-12-02 | 45fe880b68a8… |
| 199.10.45.0 – 199.10.45.255 | 256 | US |
allocated | 1993-12-02 | 45fe880b68a8… |
| 199.10.46.0 – 199.10.46.255 | 256 | US |
allocated | 1993-12-02 | 45fe880b68a8… |
| 199.10.47.0 – 199.10.47.255 | 256 | US |
allocated | 1993-12-02 | 45fe880b68a8… |
| 199.10.48.0 – 199.10.48.255 | 256 | US |
allocated | 1993-12-02 | 45fe880b68a8… |
| 199.10.49.0 – 199.10.49.255 | 256 | US |
allocated | 1993-12-02 | 45fe880b68a8… |
| 199.10.50.0 – 199.10.50.255 | 256 | US |
allocated | 1993-12-02 | 45fe880b68a8… |
| 199.10.51.0 – 199.10.51.255 | 256 | US |
allocated | 1993-12-02 | 45fe880b68a8… |
| 199.10.52.0 – 199.10.52.255 | 256 | US |
allocated | 1993-12-02 | 45fe880b68a8… |
| 199.10.53.0 – 199.10.53.255 | 256 | US |
allocated | 1993-12-02 | 45fe880b68a8… |
| 199.10.54.0 – 199.10.54.255 | 256 | US |
allocated | 1993-12-02 | 45fe880b68a8… |
| 199.10.56.0 – 199.10.56.255 | 256 | US |
allocated | 1993-12-02 | 45fe880b68a8… |
| 199.10.111.0 – 199.10.111.255 | 256 | US |
allocated | 1993-12-02 | 45fe880b68a8… |
| 199.73.8.0 – 199.73.9.255 | 512 | US |
allocated | 1993-12-02 | d9656fc0e895… |
| 199.73.16.0 – 199.73.23.255 | 2,048 | US |
allocated | 1993-12-02 | 0e0ec5752ef2… |