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
1,645,628,928
📦
IPv4 networks
76,687
delegated blocks
🧭
IPv6 networks
11,336
delegated blocks
🔗
Autonomous systems
34,032
ASNs
// browse the objects
Browse the ARIN registry
| Prefix | Country | Status | Allocated | Org handle |
|---|---|---|---|---|
| 2001:4c8::/32 |  US |
allocated | 2004-12-01 | 34d342be0361… |
| 2001:4800::/29 | US |
allocated | 2004-12-01 | c66e83fbb76c… |
| 2001:502:100e::/48 | US |
allocated | 2004-11-30 | d46edd86fd49… |
| 2001:502:2eda::/48 | US |
allocated | 2004-11-30 | d46edd86fd49… |
| 2001:502:4612::/48 | US |
allocated | 2004-11-30 | d46edd86fd49… |
| 2001:502:7a71::/48 | US |
allocated | 2004-11-30 | d46edd86fd49… |
| 2001:502:ad09::/48 | US |
allocated | 2004-11-30 | d46edd86fd49… |
| 2001:502:cfb5::/48 | US |
allocated | 2004-11-30 | d46edd86fd49… |
| 2001:502:d399::/48 | US |
allocated | 2004-11-30 | d46edd86fd49… |
| 2001:502:f3ff::/48 | US |
allocated | 2004-11-30 | d46edd86fd49… |
| 2001:4c0::/32 |  CA |
allocated | 2004-11-22 | 7de51f8320f6… |
| 2001:460::/32 | US |
allocated | 2004-11-18 | cdb7d42057bd… |
| 2001:19f8::/32 | US |
allocated | 2004-11-15 | 86987f63c1be… |
| 2001:19f0::/32 | US |
allocated | 2004-11-08 | e458cda96686… |
| 2001:19e8::/32 | US |
allocated | 2004-10-25 | 9e46ab47277f… |
| 2001:19e0::/32 | US |
allocated | 2004-10-11 | 68dd61ac8392… |
| 2001:19d0::/32 | US |
allocated | 2004-09-21 | 7032936053e5… |
| 2001:19c8::/32 | US |
allocated | 2004-09-13 | 0659a3991a0f… |
| 2001:503:8028::/48 | US |
allocated | 2004-08-13 | d46edd86fd49… |
| 2001:503:a124::/48 | US |
allocated | 2004-08-13 | d46edd86fd49… |
| 2001:503:d1ae::/48 | US |
allocated | 2004-08-13 | d46edd86fd49… |
| 2001:503:7bbb::/48 | US |
allocated | 2004-08-12 | d46edd86fd49… |
| 2001:503:c779::/48 | US |
allocated | 2004-08-12 | d46edd86fd49… |
| 2001:19b8::/32 | US |
allocated | 2004-08-12 | 6e048190eb9a… |
| 2001:19c0::/32 | CA |
allocated | 2004-08-12 | b07b65f9ed3d… |
| 2001:504:a::/48 | US |
allocated | 2004-08-05 | 2c312495609e… |
| 2001:19b0::/32 | US |
allocated | 2004-07-30 | 6c065d5b54b8… |
| 2001:19a8::/32 | CA |
allocated | 2004-07-22 | af278349df10… |
| 2001:19a0::/32 | US |
allocated | 2004-07-13 | 889ee9331f89… |
| 2001:1990::/32 | US |
allocated | 2004-07-12 | 0b61444d014d… |
| 2001:1998::/32 | US |
allocated | 2004-07-12 | d2fc8fbc818f… |
| 2001:1988::/32 | US |
allocated | 2004-06-17 | b2ed8ec67894… |
| 2001:1940::/32 | US |
allocated | 2004-06-15 | 60728115fb98… |
| 2001:1978::/32 | CA |
allocated | 2004-06-14 | 3c781914ab27… |
| 2001:1980::/32 | US |
allocated | 2004-06-14 | 24411161be8a… |
| 2001:503:c27::/48 | US |
allocated | 2004-06-03 | 1b2a06e2b1f1… |
| 2001:503:d2d::/48 | US |
allocated | 2004-06-03 | 1b2a06e2b1f1… |
| 2001:503:231d::/48 | US |
allocated | 2004-06-03 | 1b2a06e2b1f1… |
| 2001:503:3227::/48 | US |
allocated | 2004-06-03 | 1b2a06e2b1f1… |
| 2001:503:39c1::/48 | US |
allocated | 2004-06-03 | 1b2a06e2b1f1… |
| 2001:503:4872::/48 | US |
allocated | 2004-06-03 | 1b2a06e2b1f1… |
| 2001:503:5ae2::/48 | US |
allocated | 2004-06-03 | 1b2a06e2b1f1… |
| 2001:503:6810::/48 | US |
allocated | 2004-06-03 | 1b2a06e2b1f1… |
| 2001:503:7bbf::/48 | US |
allocated | 2004-06-03 | 1b2a06e2b1f1… |
| 2001:503:83eb::/48 | US |
allocated | 2004-06-03 | 1b2a06e2b1f1… |
| 2001:503:a83e::/48 | US |
allocated | 2004-06-03 | 1b2a06e2b1f1… |
| 2001:503:ba3e::/48 | US |
allocated | 2004-06-03 | 1b2a06e2b1f1… |
| 2001:503:cc2c::/48 | US |
allocated | 2004-06-03 | 1b2a06e2b1f1… |
| 2001:503:d414::/48 | US |
allocated | 2004-06-03 | 1b2a06e2b1f1… |
| 2001:503:eea3::/48 | US |
allocated | 2004-06-03 | 1b2a06e2b1f1… |
| 2001:503:f189::/48 | US |
allocated | 2004-06-03 | 1b2a06e2b1f1… |
| 2001:503:f3da::/48 | US |
allocated | 2004-06-03 | 1b2a06e2b1f1… |
| 2001:503:ff39::/48 | US |
allocated | 2004-06-03 | 1b2a06e2b1f1… |
| 2001:1968::/32 | US |
allocated | 2004-05-20 | 6c065d5b54b8… |
| 2001:1960::/32 | US |
allocated | 2004-05-14 | 7a3fe9f0f36b… |
| 2001:1958::/32 | US |
allocated | 2004-04-20 | 2eb271d6c28f… |
| 2001:1950::/32 | US |
allocated | 2004-04-13 | 911da233f145… |
| 2001:1948::/32 | US |
allocated | 2004-03-15 | 4636dd6132b1… |
| 2001:1930::/32 | US |
allocated | 2004-02-17 | 1f978ffdf157… |
| 2001:1928::/32 | CA |
allocated | 2004-02-05 | d35da7eebe86… |
| 2001:1920::/32 | CA |
allocated | 2004-02-04 | 84344661f626… |
| 2001:1910::/32 | US |
allocated | 2004-01-08 | 34d342be0361… |
| 2001:1900::/32 | US |
allocated | 2004-01-07 | e5e3b9c13678… |
| 2001:1908::/32 | US |
allocated | 2004-01-07 | 6c065d5b54b8… |
| 2001:18f0::/32 | CA |
allocated | 2004-01-05 | 4d158ec572ae… |
| 2001:18f8::/32 | CA |
allocated | 2004-01-05 | 58099ebcb100… |
| 2001:18e8::/32 | US |
allocated | 2003-12-31 | 58cfadf9b59e… |
| 2001:18e0::/32 | US |
allocated | 2003-12-30 | 567bf4b04f33… |
| 2001:18d8::/32 | US |
allocated | 2003-12-22 | 148b369d3a54… |
| 2001:18c8::/32 | US |
allocated | 2003-12-18 | 73857dd3d742… |
| 2001:18b8::/32 | US |
allocated | 2003-12-01 | 9d135eb38a45… |
| 2001:1890::/29 | US |
allocated | 2003-10-27 | 81e05477cc28… |
| 2001:1898::/32 | US |
allocated | 2003-10-27 | 105c57756e5b… |
| 2001:18a0::/32 | US |
allocated | 2003-10-27 | c340bec24822… |
| 2001:1888::/32 | US |
allocated | 2003-10-15 | ca2af2dab037… |
| 2001:1878::/32 | US |
allocated | 2003-09-25 | 344f345c36ec… |
| 2001:1868::/32 | US |
allocated | 2003-08-27 | 1a922969fbba… |
| 2001:1860::/32 | US |
allocated | 2003-08-26 | 87af7399642b… |
| 2001:1848::/32 | US |
allocated | 2003-07-16 | 3b3409744e54… |
| 2001:1850::/32 | US |
allocated | 2003-07-16 | edb1773715cb… |
| 2001:1838::/32 | US |
allocated | 2003-06-27 | 36dfb486bcc5… |
| 2001:1840::/32 | US |
allocated | 2003-06-27 | e1ed1885c9ce… |
| 2001:1818::/32 | US |
allocated | 2003-06-20 | 38783f22090f… |
| 2001:1820::/32 | US |
allocated | 2003-06-20 | 4616964edeb8… |
| 2001:1830::/32 | US |
allocated | 2003-06-20 | fa86199a4362… |
| 2001:1810::/32 | CA |
allocated | 2003-06-10 | 9533b2ecb615… |
| 2001:1800::/32 | US |
allocated | 2003-05-23 | 588ce164c8d0… |
| 2001:5f8::/32 | US |
allocated | 2003-05-09 | 5ad6348a6e84… |
| 2001:5f0::/32 | US |
allocated | 2003-04-28 | 302960e84b60… |
| 2001:5e8::/32 | US |
allocated | 2003-04-17 | 79ebd5d2c77f… |
| 2001:5d8::/32 | US |
allocated | 2003-04-04 | 6a7b9aebb5e9… |
| 2001:5e0::/32 | US |
allocated | 2003-04-04 | 0e7bbbabfd0f… |
| 2001:5d0::/32 | US |
allocated | 2003-03-26 | 89f47fe0994b… |
| 2001:5c8::/32 | US |
allocated | 2003-03-19 | e24744960b1d… |
| 2001:5b8::/32 | US |
allocated | 2003-03-12 | 66e68ecd93af… |
| 2001:5a8::/32 | US |
allocated | 2003-03-06 | 382ccf1a9d45… |
| 2001:5b0::/32 | US |
allocated | 2003-03-06 | a6a7e0a58963… |
| 2001:598::/32 | CA |
allocated | 2003-03-05 | f60173892a71… |
| 2001:5a0::/32 | US |
allocated | 2003-03-05 | 1592250ba841… |
| 2001:590::/32 | US |
allocated | 2003-02-25 | a7f7463af3d3… |