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 |
|---|---|---|---|---|
| 2001:4b4::/30 | — | reserved | — | … |
| 2001:4b9::/32 | — | reserved | — | … |
| 2001:4ba::/31 | — | reserved | — | … |
| 2001:4bc::/30 | — | reserved | — | … |
| 2001:4c1::/32 | — | reserved | — | … |
| 2001:4c2::/31 | — | reserved | — | … |
| 2001:4c4::/30 | — | reserved | — | … |
| 2001:4c9::/32 | — | reserved | — | … |
| 2001:4ca::/31 | — | reserved | — | … |
| 2001:4cc::/30 | — | reserved | — | … |
| 2001:4d1::/32 | — | reserved | — | … |
| 2001:4d2::/31 | — | reserved | — | … |
| 2001:4d4::/30 | — | reserved | — | … |
| 2001:4d8::/29 | — | available | — | … |
| 2001:4e1::/32 | — | reserved | — | … |
| 2001:4e2::/31 | — | reserved | — | … |
| 2001:4e4::/30 | — | reserved | — | … |
| 2001:4e9::/32 | — | reserved | — | … |
| 2001:4ea::/31 | — | reserved | — | … |
| 2001:4ec::/30 | — | reserved | — | … |
| 2001:4f1::/32 | — | reserved | — | … |
| 2001:4f2::/31 | — | reserved | — | … |
| 2001:4f4::/30 | — | reserved | — | … |
| 2001:4f9::/32 | — | reserved | — | … |
| 2001:4fa::/31 | — | reserved | — | … |
| 2001:4fc::/30 | — | reserved | — | … |
| 2001:500::/48 | — | available | — | … |
| 2001:500:5::/48 | — | available | — | … |
| 2001:500:32::/47 | — | available | — | … |
| 2001:500:34::/46 | — | available | — | … |
| 2001:500:38::/45 | — | available | — | … |
| 2001:500:57::/48 | — | available | — | … |
| 2001:500:58::/45 | — | available | — | … |
| 2001:500:7e::/47 | — | available | — | … |
| 2001:500:8a::/47 | — | available | — | … |
| 2001:500:aa::/47 | — | available | — | … |
| 2001:500:ac::/46 | — | available | — | … |
| 2001:500:b0::/44 | — | available | — | … |
| 2001:500:f2::/47 | — | available | — | … |
| 2001:500:f4::/46 | — | available | — | … |
| 2001:500:f8::/45 | — | available | — | … |
| 2001:500:10a::/47 | — | reserved | — | … |
| 2001:500:10c::/46 | — | reserved | — | … |
| 2001:500:111::/48 | — | available | — | … |
| 2001:500:112::/47 | — | available | — | … |
| 2001:500:114::/46 | — | available | — | … |
| 2001:500:118::/45 | — | available | — | … |
| 2001:500:140::/42 | — | available | — | … |
| 2001:500:180::/41 | — | available | — | … |
| 2001:500:211::/48 | — | available | — | … |
| 2001:500:212::/47 | — | available | — | … |
| 2001:500:214::/46 | — | available | — | … |
| 2001:500:218::/45 | — | available | — | … |
| 2001:500:220::/43 | — | available | — | … |
| 2001:500:240::/42 | — | available | — | … |
| 2001:500:280::/41 | — | available | — | … |
| 2001:500:300::/41 | — | available | — | … |
| 2001:500:380::/42 | — | available | — | … |
| 2001:500:3c0::/43 | — | available | — | … |
| 2001:500:3e0::/46 | — | available | — | … |
| 2001:500:3e4::/48 | — | available | — | … |
| 2001:500:3e6::/47 | — | available | — | … |
| 2001:500:3e8::/45 | — | available | — | … |
| 2001:500:3f0::/44 | — | available | — | … |
| 2001:500:400::/38 | — | available | — | … |
| 2001:500:800::/37 | — | available | — | … |
| 2001:500:1000::/36 | — | available | — | … |
| 2001:500:2000::/36 | — | available | — | … |
| 2001:500:3000::/41 | — | available | — | … |
| 2001:500:3080::/42 | — | available | — | … |
| 2001:500:30c0::/43 | — | available | — | … |
| 2001:500:30e0::/44 | — | available | — | … |
| 2001:500:30f0::/45 | — | available | — | … |
| 2001:500:30f8::/46 | — | available | — | … |
| 2001:500:30fc::/47 | — | available | — | … |
| 2001:500:30fe::/48 | — | available | — | … |
| 2001:500:3100::/40 | — | available | — | … |
| 2001:500:3200::/39 | — | available | — | … |
| 2001:500:3400::/39 | — | available | — | … |
| 2001:500:3600::/41 | — | available | — | … |
| 2001:500:3680::/47 | — | available | — | … |
| 2001:500:3683::/48 | — | available | — | … |
| 2001:500:3684::/46 | — | available | — | … |
| 2001:500:3688::/45 | — | available | — | … |
| 2001:500:3690::/44 | — | available | — | … |
| 2001:500:36a0::/43 | — | available | — | … |
| 2001:500:36c0::/42 | — | available | — | … |
| 2001:500:3700::/40 | — | available | — | … |
| 2001:500:3800::/37 | — | available | — | … |
| 2001:500:4000::/38 | — | available | — | … |
| 2001:500:4400::/43 | — | available | — | … |
| 2001:500:4420::/44 | — | available | — | … |
| 2001:500:4430::/48 | — | available | — | … |
| 2001:500:4432::/47 | — | available | — | … |
| 2001:500:4434::/46 | — | available | — | … |
| 2001:500:4438::/45 | — | available | — | … |
| 2001:500:4440::/42 | — | available | — | … |
| 2001:500:4480::/41 | — | available | — | … |
| 2001:500:4500::/40 | — | available | — | … |
| 2001:500:4600::/39 | — | available | — | … |