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
1,644,584,448
📦
IPv4 networks
76,800
delegated blocks
🧭
IPv6 networks
11,472
delegated blocks
🔗
Autonomous systems
34,179
ASNs
// browse the objects
Browse the ARIN registry
| Prefix | Country | Status | Allocated | Org handle |
|---|---|---|---|---|
| 2604:5442::/31 | — | reserved | — | … |
| 2604:5444::/30 | — | reserved | — | … |
| 2604:5448::/29 | — | reserved | — | … |
| 2604:5450::/28 | — | available | — | … |
| 2604:5460::/27 | — | available | — | … |
| 2604:5481::/32 | — | reserved | — | … |
| 2604:5482::/31 | — | reserved | — | … |
| 2604:5484::/30 | — | reserved | — | … |
| 2604:5488::/29 | — | reserved | — | … |
| 2604:5490::/28 | — | available | — | … |
| 2604:54a0::/27 | — | available | — | … |
| 2604:54c1::/32 | — | reserved | — | … |
| 2604:54c2::/31 | — | reserved | — | … |
| 2604:54c4::/30 | — | reserved | — | … |
| 2604:54c8::/29 | — | reserved | — | … |
| 2604:54d0::/28 | — | available | — | … |
| 2604:54e0::/27 | — | available | — | … |
| 2604:5501::/32 | — | reserved | — | … |
| 2604:5502::/31 | — | reserved | — | … |
| 2604:5504::/30 | — | reserved | — | … |
| 2604:5508::/29 | — | reserved | — | … |
| 2604:5510::/28 | — | available | — | … |
| 2604:5520::/27 | — | available | — | … |
| 2604:5541::/32 | — | reserved | — | … |
| 2604:5542::/31 | — | reserved | — | … |
| 2604:5544::/30 | — | reserved | — | … |
| 2604:5548::/29 | — | reserved | — | … |
| 2604:5550::/28 | — | available | — | … |
| 2604:5560::/27 | — | available | — | … |
| 2604:5581::/32 | — | reserved | — | … |
| 2604:5582::/31 | — | reserved | — | … |
| 2604:5584::/30 | — | reserved | — | … |
| 2604:5588::/29 | — | reserved | — | … |
| 2604:5590::/28 | — | available | — | … |
| 2604:55a0::/27 | — | available | — | … |
| 2604:55c1::/32 | — | reserved | — | … |
| 2604:55c2::/31 | — | reserved | — | … |
| 2604:55c4::/30 | — | reserved | — | … |
| 2604:55c8::/29 | — | reserved | — | … |
| 2604:55d0::/28 | — | available | — | … |
| 2604:55e0::/27 | — | available | — | … |
| 2604:5601::/32 | — | reserved | — | … |
| 2604:5602::/31 | — | reserved | — | … |
| 2604:5604::/30 | — | reserved | — | … |
| 2604:5608::/29 | — | reserved | — | … |
| 2604:5610::/28 | — | available | — | … |
| 2604:5620::/27 | — | available | — | … |
| 2604:5640::/32 | — | reserved | — | … |
| 2604:5641::/32 | — | reserved | — | … |
| 2604:5642::/31 | — | reserved | — | … |
| 2604:5644::/30 | — | reserved | — | … |
| 2604:5648::/29 | — | reserved | — | … |
| 2604:5650::/28 | — | available | — | … |
| 2604:5660::/27 | — | available | — | … |
| 2604:5681::/32 | — | reserved | — | … |
| 2604:5682::/31 | — | reserved | — | … |
| 2604:5684::/30 | — | reserved | — | … |
| 2604:5688::/29 | — | reserved | — | … |
| 2604:5690::/28 | — | available | — | … |
| 2604:56a0::/27 | — | available | — | … |
| 2604:56c1::/32 | — | reserved | — | … |
| 2604:56c2::/31 | — | reserved | — | … |
| 2604:56c4::/30 | — | reserved | — | … |
| 2604:56c8::/29 | — | reserved | — | … |
| 2604:56d0::/28 | — | available | — | … |
| 2604:56e0::/27 | — | available | — | … |
| 2604:5701::/32 | — | reserved | — | … |
| 2604:5702::/31 | — | reserved | — | … |
| 2604:5704::/30 | — | reserved | — | … |
| 2604:5708::/29 | — | reserved | — | … |
| 2604:5710::/28 | — | available | — | … |
| 2604:5720::/27 | — | available | — | … |
| 2604:5741::/32 | — | reserved | — | … |
| 2604:5742::/31 | — | reserved | — | … |
| 2604:5744::/30 | — | reserved | — | … |
| 2604:5748::/29 | — | reserved | — | … |
| 2604:5750::/28 | — | available | — | … |
| 2604:5760::/27 | — | available | — | … |
| 2604:5781::/32 | — | reserved | — | … |
| 2604:5782::/31 | — | reserved | — | … |
| 2604:5784::/30 | — | reserved | — | … |
| 2604:5788::/29 | — | reserved | — | … |
| 2604:5790::/28 | — | available | — | … |
| 2604:57a0::/27 | — | available | — | … |
| 2604:57c1::/32 | — | reserved | — | … |
| 2604:57c2::/31 | — | reserved | — | … |
| 2604:57c4::/30 | — | reserved | — | … |
| 2604:57c8::/29 | — | reserved | — | … |
| 2604:57d0::/28 | — | available | — | … |
| 2604:57e0::/27 | — | available | — | … |
| 2604:5801::/32 | — | reserved | — | … |
| 2604:5802::/31 | — | reserved | — | … |
| 2604:5804::/30 | — | reserved | — | … |
| 2604:5808::/29 | — | reserved | — | … |
| 2604:5810::/28 | — | available | — | … |
| 2604:5820::/27 | — | available | — | … |
| 2604:5841::/32 | — | reserved | — | … |
| 2604:5842::/31 | — | reserved | — | … |
| 2604:5844::/30 | — | reserved | — | … |
| 2604:5848::/29 | — | reserved | — | … |