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 |
|---|---|---|---|---|
| 2001:504:54::/47 | — | available | — | … |
| 2001:504:56::/48 | — | available | — | … |
| 2001:504:5a::/47 | — | available | — | … |
| 2001:504:5c::/46 | — | available | — | … |
| 2001:504:62::/48 | — | reserved | — | … |
| 2001:504:66::/48 | — | available | — | … |
| 2001:504:6a::/47 | — | available | — | … |
| 2001:504:6c::/46 | — | available | — | … |
| 2001:504:7a::/47 | — | available | — | … |
| 2001:504:7c::/46 | — | available | — | … |
| 2001:504:a1::/48 | — | reserved | — | … |
| 2001:504:a2::/47 | — | reserved | — | … |
| 2001:504:a4::/46 | — | reserved | — | … |
| 2001:504:a8::/45 | — | reserved | — | … |
| 2001:504:b0::/44 | — | available | — | … |
| 2001:504:c0::/42 | — | available | — | … |
| 2001:504:103::/48 | — | reserved | — | … |
| 2001:504:109::/48 | — | reserved | — | … |
| 2001:504:10a::/47 | — | available | — | … |
| 2001:504:10c::/46 | — | available | — | … |
| 2001:504:112::/48 | — | reserved | — | … |
| 2001:504:11a::/47 | — | available | — | … |
| 2001:504:11c::/46 | — | available | — | … |
| 2001:504:12a::/47 | — | available | — | … |
| 2001:504:12c::/46 | — | available | — | … |
| 2001:504:130::/48 | — | reserved | — | … |
| 2001:504:134::/48 | — | reserved | — | … |
| 2001:504:135::/48 | — | available | — | … |
| 2001:504:139::/48 | — | reserved | — | … |
| 2001:504:140::/42 | — | available | — | … |
| 2001:504:180::/41 | — | available | — | … |
| 2001:504:200::/39 | — | available | — | … |
| 2001:504:400::/38 | — | available | — | … |
| 2001:504:800::/37 | — | available | — | … |
| 2001:504:1000::/36 | — | available | — | … |
| 2001:504:2000::/35 | — | available | — | … |
| 2001:504:4000::/34 | — | available | — | … |
| 2001:504:8000::/33 | — | available | — | … |
| 2001:505::/40 | — | available | — | … |
| 2001:505:100::/42 | — | available | — | … |
| 2001:505:144::/48 | — | reserved | — | … |
| 2001:505:14a::/47 | — | available | — | … |
| 2001:505:14c::/46 | — | available | — | … |
| 2001:505:153::/48 | — | available | — | … |
| 2001:505:154::/46 | — | available | — | … |
| 2001:505:158::/45 | — | available | — | … |
| 2001:505:160::/43 | — | available | — | … |
| 2001:505:180::/41 | — | available | — | … |
| 2001:505:200::/39 | — | available | — | … |
| 2001:505:400::/38 | — | available | — | … |
| 2001:505:800::/37 | — | available | — | … |
| 2001:505:1000::/36 | — | available | — | … |
| 2001:505:2000::/35 | — | available | — | … |
| 2001:505:4000::/34 | — | available | — | … |
| 2001:505:8000::/33 | — | available | — | … |
| 2001:506:3::/48 | — | available | — | … |
| 2001:506:4::/46 | — | available | — | … |
| 2001:506:a::/47 | — | available | — | … |
| 2001:506:c::/46 | — | available | — | … |
| 2001:506:10::/44 | — | available | — | … |
| 2001:506:22::/47 | — | available | — | … |
| 2001:506:24::/46 | — | available | — | … |
| 2001:506:29::/48 | — | available | — | … |
| 2001:506:2a::/47 | — | available | — | … |
| 2001:506:2c::/46 | — | available | — | … |
| 2001:506:31::/48 | — | available | — | … |
| 2001:506:32::/48 | — | available | — | … |
| 2001:506:33::/48 | — | reserved | — | … |
| 2001:506:34::/46 | — | available | — | … |
| 2001:506:3b::/48 | — | available | — | … |
| 2001:506:3c::/46 | — | available | — | … |
| 2001:506:40::/42 | — | available | — | … |
| 2001:506:80::/41 | — | available | — | … |
| 2001:506:101::/48 | — | available | — | … |
| 2001:506:102::/47 | — | available | — | … |
| 2001:506:104::/46 | — | available | — | … |
| 2001:506:108::/45 | — | available | — | … |
| 2001:506:110::/44 | — | available | — | … |
| 2001:506:120::/43 | — | available | — | … |
| 2001:506:140::/42 | — | available | — | … |
| 2001:506:180::/41 | — | available | — | … |
| 2001:506:400::/38 | — | available | — | … |
| 2001:506:800::/37 | — | available | — | … |
| 2001:506:3000::/36 | — | reserved | — | … |
| 2001:506:8000::/33 | — | available | — | … |
| 2001:507::/32 | — | available | — | … |
| 2001:509::/32 | — | reserved | — | … |
| 2001:50a::/31 | — | reserved | — | … |
| 2001:50c::/30 | — | reserved | — | … |
| 2001:511::/32 | — | reserved | — | … |
| 2001:512::/31 | — | reserved | — | … |
| 2001:514::/30 | — | reserved | — | … |
| 2001:519::/32 | — | reserved | — | … |
| 2001:51a::/31 | — | reserved | — | … |
| 2001:51c::/30 | — | reserved | — | … |
| 2001:521::/32 | — | reserved | — | … |
| 2001:522::/31 | — | reserved | — | … |
| 2001:524::/30 | — | reserved | — | … |
| 2001:529::/32 | — | reserved | — | … |
| 2001:52a::/31 | — | reserved | — | … |