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
1,645,646,592
📦
IPv4 networks
76,735
delegated blocks
🧭
IPv6 networks
11,370
delegated blocks
🔗
Autonomous systems
34,059
ASNs
// browse the objects
Browse the ARIN registry
| Prefix | Country | Status | Allocated | Org handle |
|---|---|---|---|---|
| 2604:b1a0::/27 | — | available | — | … |
| 2604:b1c1::/32 | — | reserved | — | … |
| 2604:b1c2::/31 | — | reserved | — | … |
| 2604:b1c4::/30 | — | reserved | — | … |
| 2604:b1c8::/29 | — | reserved | — | … |
| 2604:b1d0::/28 | — | available | — | … |
| 2604:b1e0::/27 | — | available | — | … |
| 2604:b201::/32 | — | reserved | — | … |
| 2604:b202::/31 | — | reserved | — | … |
| 2604:b204::/30 | — | reserved | — | … |
| 2604:b208::/29 | — | reserved | — | … |
| 2604:b210::/28 | — | available | — | … |
| 2604:b220::/27 | — | available | — | … |
| 2604:b241::/32 | — | reserved | — | … |
| 2604:b242::/31 | — | reserved | — | … |
| 2604:b244::/30 | — | reserved | — | … |
| 2604:b248::/29 | — | reserved | — | … |
| 2604:b250::/28 | — | available | — | … |
| 2604:b260::/27 | — | available | — | … |
| 2604:b281::/32 | — | reserved | — | … |
| 2604:b282::/31 | — | reserved | — | … |
| 2604:b284::/30 | — | reserved | — | … |
| 2604:b288::/29 | — | reserved | — | … |
| 2604:b290::/28 | — | available | — | … |
| 2604:b2a0::/27 | — | available | — | … |
| 2604:b2c1::/32 | — | reserved | — | … |
| 2604:b2c2::/31 | — | reserved | — | … |
| 2604:b2c4::/30 | — | reserved | — | … |
| 2604:b2c8::/29 | — | reserved | — | … |
| 2604:b2d0::/28 | — | available | — | … |
| 2604:b2e0::/27 | — | available | — | … |
| 2604:b301::/32 | — | reserved | — | … |
| 2604:b302::/31 | — | reserved | — | … |
| 2604:b304::/30 | — | reserved | — | … |
| 2604:b308::/29 | — | reserved | — | … |
| 2604:b310::/28 | — | available | — | … |
| 2604:b320::/27 | — | available | — | … |
| 2604:b341::/32 | — | reserved | — | … |
| 2604:b342::/31 | — | reserved | — | … |
| 2604:b344::/30 | — | reserved | — | … |
| 2604:b348::/29 | — | reserved | — | … |
| 2604:b350::/28 | — | available | — | … |
| 2604:b360::/27 | — | available | — | … |
| 2604:b380::/26 | — | available | — | … |
| 2604:b3c1::/32 | — | reserved | — | … |
| 2604:b3c2::/31 | — | reserved | — | … |
| 2604:b3c4::/30 | — | reserved | — | … |
| 2604:b3c8::/29 | — | reserved | — | … |
| 2604:b3d0::/28 | — | available | — | … |
| 2604:b3e0::/27 | — | available | — | … |
| 2604:b401::/32 | — | reserved | — | … |
| 2604:b402::/31 | — | reserved | — | … |
| 2604:b404::/30 | — | reserved | — | … |
| 2604:b408::/29 | — | reserved | — | … |
| 2604:b410::/28 | — | available | — | … |
| 2604:b420::/27 | — | available | — | … |
| 2604:b441::/32 | — | reserved | — | … |
| 2604:b442::/31 | — | reserved | — | … |
| 2604:b444::/30 | — | reserved | — | … |
| 2604:b448::/29 | — | reserved | — | … |
| 2604:b450::/28 | — | available | — | … |
| 2604:b460::/27 | — | available | — | … |
| 2604:b481::/32 | — | reserved | — | … |
| 2604:b482::/31 | — | reserved | — | … |
| 2604:b484::/30 | — | reserved | — | … |
| 2604:b488::/29 | — | reserved | — | … |
| 2604:b490::/28 | — | available | — | … |
| 2604:b4a0::/27 | — | available | — | … |
| 2604:b4c1::/32 | — | reserved | — | … |
| 2604:b4c2::/31 | — | reserved | — | … |
| 2604:b4c4::/30 | — | reserved | — | … |
| 2604:b4c8::/29 | — | reserved | — | … |
| 2604:b4d0::/28 | — | available | — | … |
| 2604:b4e0::/27 | — | available | — | … |
| 2604:b501::/32 | — | reserved | — | … |
| 2604:b502::/31 | — | reserved | — | … |
| 2604:b504::/30 | — | reserved | — | … |
| 2604:b508::/29 | — | reserved | — | … |
| 2604:b510::/28 | — | available | — | … |
| 2604:b520::/27 | — | available | — | … |
| 2604:b540::/27 | — | available | — | … |
| 2604:b561::/32 | — | reserved | — | … |
| 2604:b562::/31 | — | reserved | — | … |
| 2604:b564::/30 | — | reserved | — | … |
| 2604:b568::/29 | — | reserved | — | … |
| 2604:b570::/28 | — | available | — | … |
| 2604:b580::/26 | — | available | — | … |
| 2604:b5c1::/32 | — | reserved | — | … |
| 2604:b5c2::/31 | — | reserved | — | … |
| 2604:b5c4::/30 | — | reserved | — | … |
| 2604:b5c8::/29 | — | reserved | — | … |
| 2604:b5d0::/28 | — | available | — | … |
| 2604:b5e0::/27 | — | available | — | … |
| 2604:b600::/27 | — | available | — | … |
| 2604:b621::/32 | — | reserved | — | … |
| 2604:b622::/31 | — | reserved | — | … |
| 2604:b624::/30 | — | reserved | — | … |
| 2604:b628::/29 | — | reserved | — | … |
| 2604:b630::/28 | — | available | — | … |
| 2604:b640::/26 | — | available | — | … |