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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

IPv4 blocks IPv6 blocks ASNs
ASCountryStatusAllocatedOrg handle
AS1758 US assigned 1992-03-04 bdf44844ab2d…
AS1760 US assigned 1992-03-04 63a495917639…
AS1762 US assigned 1992-03-04 e0e32537c5f4…
AS1742 US assigned 1992-02-19 2c8438ff5e93…
AS1743 US assigned 1992-02-19 e220ed812a4c…
AS1745 US assigned 1992-02-19 5d3eaea1d0a8…
AS1746 US assigned 1992-02-19 f2e560352988…
AS1747 US assigned 1992-02-19 01ded2cfbf92…
AS1749 US assigned 1992-02-19 2d90cbf4f78e…
AS1750 US assigned 1992-02-19 455419bf635c…
AS1751 US assigned 1992-02-19 d9721f9a2975…
AS1753 US assigned 1992-02-19 b7c2224e7769…
AS1700 US assigned 1992-02-13 5f676a1dae02…
AS1701 US assigned 1992-02-13 2d90cbf4f78e…
AS1703 US assigned 1992-02-13 252351fbc17c…
AS1705 US assigned 1992-02-13 acd8ae27f732…
AS1706 US assigned 1992-02-13 6d25f5314a15…
AS1735 US assigned 1992-02-13 c3f254147ac0…
AS1744 US assigned 1992-02-13 0596821a6910…
AS1727 US assigned 1992-01-08 45fe880b68a8…
AS1728 US assigned 1992-01-08 78953c2f9d3b…
AS1733 US assigned 1992-01-08 45fe880b68a8…
AS1734 US assigned 1992-01-08 204aec7aefda…
AS1736 US assigned 1992-01-08 2a9a93e71d1f…
AS1450 US assigned 1991-12-30 c096bf755fee…
AS1655 US assigned 1991-12-30 a181bfc17354…
AS1656 US assigned 1991-12-30 a5233c3f9c47…
AS1658 US assigned 1991-12-30 7882725f5e80…
AS1740 US assigned 1991-12-30 81e05477cc28…
AS1358 US assigned 1991-09-30 a6a7e0a58963…
AS1357 US assigned 1991-09-24 ef11a4dba40f…
AS1361 US assigned 1991-09-22 a181bfc17354…
AS1362 US assigned 1991-09-22 a181bfc17354…
AS1363 US assigned 1991-09-22 a181bfc17354…
AS1364 US assigned 1991-09-22 a181bfc17354…
AS1365 US assigned 1991-09-22 a181bfc17354…
AS1366 US assigned 1991-09-22 a181bfc17354…
AS1367 US assigned 1991-09-22 a181bfc17354…
AS1368 US assigned 1991-09-22 a181bfc17354…
AS1369 US assigned 1991-09-22 a181bfc17354…
AS1370 US assigned 1991-09-22 a181bfc17354…
AS1371 US assigned 1991-09-22 a181bfc17354…
AS1372 US assigned 1991-09-22 a181bfc17354…
AS1373 US assigned 1991-09-22 a181bfc17354…
AS1374 US assigned 1991-09-22 a181bfc17354…
AS1375 US assigned 1991-09-22 a181bfc17354…
AS1376 US assigned 1991-09-22 a181bfc17354…
AS1377 US assigned 1991-09-22 a181bfc17354…
AS1354 US assigned 1991-09-18 12610d18ad20…
AS1351 US assigned 1991-09-17 bab0d09bf6fb…
AS1347 US assigned 1991-09-12 f9bdc9d330fa…
AS1348 US assigned 1991-09-12 a2148e8a1ee1…
AS1350 US assigned 1991-09-12 e91079afe29a…
AS1343 US assigned 1991-09-03 6d77cb1b00b1…
AS1344 US assigned 1991-09-03 a181bfc17354…
AS1345 US assigned 1991-09-03 a181bfc17354…
AS1346 US assigned 1991-09-03 a181bfc17354…
AS1319 US assigned 1991-08-23 a181bfc17354…
AS1320 US assigned 1991-08-23 a181bfc17354…
AS1341 US assigned 1991-08-23 7617b821cd28…
AS1285 US assigned 1991-08-12 3478cdf48ea9…
AS1317 US assigned 1991-08-08 a181bfc17354…
AS1316 US assigned 1991-08-07 2d90cbf4f78e…
AS1314 US assigned 1991-08-02 45fe880b68a8…
AS1280 US assigned 1991-07-31 ff47ad72d842…
AS1281 US assigned 1991-07-31 37fe01d6d027…
AS1282 US assigned 1991-07-31 37fe01d6d027…
AS1283 US assigned 1991-07-31 37fe01d6d027…
AS1284 US assigned 1991-07-31 37fe01d6d027…
AS1313 US assigned 1991-07-24 ed8c5a64626b…
AS1311 US assigned 1991-07-19 27a2fec661e4…
AS1312 US assigned 1991-07-19 6d198a372145…
AS1278 US assigned 1991-07-13 a87bc003885b…
AS1310 US assigned 1991-07-08 826eff217725…
AS1262 US assigned 1991-06-27 2d90cbf4f78e…
AS1263 US assigned 1991-06-27 2d90cbf4f78e…
AS1264 US assigned 1991-06-27 c096bf755fee…
AS1265 US assigned 1991-06-27 b31b34bc7a91…
AS1266 US assigned 1991-06-27 a181bfc17354…
AS1276 US assigned 1991-06-20 3d7774aef87b…
AS1298 US assigned 1991-06-19 45fe880b68a8…
AS806 CA assigned 1991-06-17 84344661f626…
AS1261 US assigned 1991-06-17 b3b39d80d24a…
AS1295 US assigned 1991-06-04 b38f9b23fd4a…
AS1293 US assigned 1991-05-24 acd8ae27f732…
AS1294 US assigned 1991-05-24 c0596c9d1e12…
AS1291 US assigned 1991-05-16 45fe880b68a8…
AS1259 US assigned 1991-05-14 c096bf755fee…
AS1258 US assigned 1991-05-03 57faeb461b3e…
AS1256 US assigned 1991-04-26 5d2d064a92b4…
AS1254 US assigned 1991-04-24 2d90cbf4f78e…
AS1255 US assigned 1991-04-24 2a10cb2b9cdc…
AS1249 US assigned 1991-04-18 8600d3e98608…
AS1260 US assigned 1991-04-17 bdf44844ab2d…
AS1247 US assigned 1991-04-12 45fe880b68a8…
AS1252 US assigned 1991-04-12 0b05069aceff…
AS1244 US assigned 1991-04-09 fc99369c2cf2…
AS1245 US assigned 1991-04-09 bdf44844ab2d…
AS1243 US assigned 1991-04-03 c096bf755fee…
AS1242 US assigned 1991-03-26 bdf44844ab2d…
31,101–31,200 of 32,715 « first‹ prev 310311312313314 next ›last » of 328