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
| AS | Country | Status | Allocated | Org handle |
|---|---|---|---|---|
| AS576 |  US |
assigned | 1990-02-07 | 45fe880b68a8… |
| AS580 | US |
assigned | 1990-02-07 | 45fe880b68a8… |
| AS581 | US |
assigned | 1990-02-07 | bdf44844ab2d… |
| AS582 | US |
assigned | 1990-02-07 | bdf44844ab2d… |
| AS583 | US |
assigned | 1990-02-07 | bdf44844ab2d… |
| AS584 | US |
assigned | 1990-02-07 | bdf44844ab2d… |
| AS585 | US |
assigned | 1990-02-07 | bdf44844ab2d… |
| AS586 | US |
assigned | 1990-02-07 | bdf44844ab2d… |
| AS587 | US |
assigned | 1990-02-07 | bdf44844ab2d… |
| AS573 | US |
assigned | 1990-01-31 | 45fe880b68a8… |
| AS574 | US |
assigned | 1990-01-31 | 1fd660ca4c6c… |
| AS564 | US |
assigned | 1990-01-16 | 45fe880b68a8… |
| AS570 | US |
assigned | 1990-01-16 | bdf44844ab2d… |
| AS571 | US |
assigned | 1990-01-16 | 45fe880b68a8… |
| AS569 | US |
assigned | 1990-01-12 | 45fe880b68a8… |
| AS561 | US |
assigned | 1990-01-01 | 4a34b9f7ce6e… |
| AS562 | US |
assigned | 1990-01-01 | 4a34b9f7ce6e… |
| AS563 | US |
assigned | 1990-01-01 | 4a34b9f7ce6e… |
| AS568 | US |
assigned | 1990-01-01 | 45fe880b68a8… |
| AS556 | US |
assigned | 1989-12-19 | d681b39a9439… |
| AS557 | US |
assigned | 1989-12-13 | 50c89ff363cd… |
| AS558 | US |
assigned | 1989-12-13 | 763d14c167f8… |
| AS554 | US |
assigned | 1989-11-30 | f78e29d46caa… |
| AS555 | US |
assigned | 1989-11-30 | f831e8b3dd9a… |
| AS552 | US |
assigned | 1989-11-14 | 45fe880b68a8… |
| AS550 | US |
assigned | 1989-11-13 | d36aed7aeb09… |
| AS551 | US |
assigned | 1989-11-13 | c9664fe58e8a… |
| AS549 |  CA |
assigned | 1989-11-09 | 9140c3c6266f… |
| AS548 | US |
assigned | 1989-11-08 | bdf44844ab2d… |
| AS546 | US |
assigned | 1989-11-07 | c9664fe58e8a… |
| AS547 | US |
assigned | 1989-11-03 | 01ded2cfbf92… |
| AS543 | US |
assigned | 1989-10-17 | acd8ae27f732… |
| AS545 | US |
assigned | 1989-10-17 | 996832d0b00f… |
| AS542 | CA |
assigned | 1989-10-11 | 7a7a22d880b0… |
| AS525 | US |
assigned | 1989-09-30 | c096bf755fee… |
| AS526 | US |
assigned | 1989-09-29 | c096bf755fee… |
| AS527 | US |
assigned | 1989-09-29 | 45fe880b68a8… |
| AS530 | US |
assigned | 1989-09-29 | c096bf755fee… |
| AS531 | US |
assigned | 1989-09-29 | c096bf755fee… |
| AS532 | US |
assigned | 1989-09-29 | 45fe880b68a8… |
| AS533 | US |
assigned | 1989-09-29 | c096bf755fee… |
| AS534 | US |
assigned | 1989-09-29 | c096bf755fee… |
| AS535 | US |
assigned | 1989-09-29 | c096bf755fee… |
| AS536 | US |
assigned | 1989-09-29 | c096bf755fee… |
| AS537 | US |
assigned | 1989-09-29 | c096bf755fee… |
| AS538 | US |
assigned | 1989-09-29 | c096bf755fee… |
| AS539 | US |
assigned | 1989-09-29 | c096bf755fee… |
| AS540 | US |
assigned | 1989-09-29 | 45fe880b68a8… |
| AS523 | US |
assigned | 1989-09-26 | c096bf755fee… |
| AS522 | US |
assigned | 1989-09-25 | bdf44844ab2d… |
| AS521 | US |
assigned | 1989-09-22 | ce4419bfa21e… |
| AS520 | US |
assigned | 1989-09-19 | dde503ba46d2… |
| AS541 | US |
assigned | 1989-09-19 | 91d3920e4c54… |
| AS519 | US |
assigned | 1989-09-14 | ba7100eeb913… |
| AS518 | US |
assigned | 1989-09-08 | 45fe880b68a8… |
| AS516 | US |
assigned | 1989-09-06 | 4a1b73c211c3… |
| AS514 | US |
assigned | 1989-08-31 | 45fe880b68a8… |
| AS515 | US |
assigned | 1989-08-31 | 45fe880b68a8… |
| AS512 | US |
assigned | 1989-08-23 | 45fe880b68a8… |
| AS509 | US |
assigned | 1989-08-07 | 45fe880b68a8… |
| AS379–AS508 | US |
assigned | 1989-08-04 | bdf44844ab2d… |
| AS377 | US |
assigned | 1989-08-01 | 20cd1178e946… |
| AS376 | CA |
assigned | 1989-07-27 | 44bca3813bb1… |
| AS374 | US |
assigned | 1989-07-18 | bdf44844ab2d… |
| AS373 | US |
assigned | 1989-07-13 | e46d50b27c27… |
| AS372 | US |
assigned | 1989-07-10 | 2d90cbf4f78e… |
| AS306–AS371 | US |
assigned | 1989-06-30 | 45fe880b68a8… |
| AS304 | US |
assigned | 1989-06-27 | 2784ce9dbeb2… |
| AS305 | US |
assigned | 1989-06-27 | c096bf755fee… |
| AS303 | US |
assigned | 1989-06-26 | 45fe880b68a8… |
| AS302 | US |
assigned | 1989-06-23 | 28bef9cf7e9c… |
| AS301 | US |
assigned | 1989-06-21 | bdf44844ab2d… |
| AS299 | US |
assigned | 1989-06-15 | 6be5ed29148a… |
| AS300 | US |
assigned | 1989-06-15 | 45fe880b68a8… |
| AS298 | US |
assigned | 1989-06-14 | bdf44844ab2d… |
| AS297 | US |
assigned | 1989-06-09 | 2d90cbf4f78e… |
| AS296 | US |
assigned | 1989-06-08 | bdf44844ab2d… |
| AS295 | US |
assigned | 1989-06-07 | 45fe880b68a8… |
| AS289 | US |
assigned | 1989-06-02 | c096bf755fee… |
| AS287 | US |
assigned | 1989-05-17 | a181bfc17354… |
| AS284 | US |
assigned | 1989-05-11 | e220ed812a4c… |
| AS285 | US |
assigned | 1989-05-11 | c096bf755fee… |
| AS277 | US |
assigned | 1989-03-31 | 161fb0fc33bc… |
| AS274 | US |
assigned | 1989-03-10 | 0a40e3c91a3a… |
| AS273 | US |
assigned | 1989-03-03 | 45fe880b68a8… |
| AS272 | US |
assigned | 1989-02-27 | c096bf755fee… |
| AS270 | US |
assigned | 1989-02-24 | 2d90cbf4f78e… |
| AS271 | CA |
assigned | 1989-02-24 | b764959acfe6… |
| AS269 | US |
assigned | 1989-02-22 | ba8b2f170895… |
| AS268 | US |
assigned | 1989-02-09 | 3318dff48218… |
| AS265 | US |
assigned | 1989-02-01 | 365056bf5a8e… |
| AS264 | US |
assigned | 1989-01-23 | 2784ce9dbeb2… |
| AS259 | US |
assigned | 1989-01-04 | a5763201be5e… |
| AS260 | US |
assigned | 1989-01-04 | a7f7463af3d3… |
| AS258 | US |
assigned | 1988-12-23 | c096bf755fee… |
| AS257 | US |
assigned | 1988-12-22 | a181bfc17354… |
| AS256 | US |
assigned | 1988-12-09 | a181bfc17354… |
| AS255 | US |
assigned | 1988-11-28 | bdf44844ab2d… |
| AS254 | US |
assigned | 1988-11-11 | 5f6095e5c918… |
| AS252 | US |
assigned | 1988-11-02 | c096bf755fee… |