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 |
|---|---|---|---|---|
| 2001:503:d1ac::/47 | — | available | — | … |
| 2001:503:d1af::/48 | — | available | — | … |
| 2001:503:d1b0::/44 | — | available | — | … |
| 2001:503:d1c0::/42 | — | available | — | … |
| 2001:503:d200::/39 | — | available | — | … |
| 2001:503:d400::/44 | — | available | — | … |
| 2001:503:d410::/46 | — | available | — | … |
| 2001:503:d415::/48 | — | available | — | … |
| 2001:503:d416::/47 | — | available | — | … |
| 2001:503:d418::/45 | — | available | — | … |
| 2001:503:d420::/43 | — | available | — | … |
| 2001:503:d440::/42 | — | available | — | … |
| 2001:503:d480::/41 | — | available | — | … |
| 2001:503:d500::/40 | — | available | — | … |
| 2001:503:d600::/39 | — | available | — | … |
| 2001:503:d800::/37 | — | available | — | … |
| 2001:503:e000::/39 | — | available | — | … |
| 2001:503:e200::/43 | — | available | — | … |
| 2001:503:e220::/44 | — | available | — | … |
| 2001:503:e230::/45 | — | available | — | … |
| 2001:503:e238::/48 | — | available | — | … |
| 2001:503:e23a::/47 | — | available | — | … |
| 2001:503:e23c::/46 | — | available | — | … |
| 2001:503:e240::/42 | — | available | — | … |
| 2001:503:e280::/41 | — | available | — | … |
| 2001:503:e300::/40 | — | available | — | … |
| 2001:503:e400::/38 | — | available | — | … |
| 2001:503:e800::/41 | — | available | — | … |
| 2001:503:e880::/42 | — | available | — | … |
| 2001:503:e8c0::/43 | — | available | — | … |
| 2001:503:e8e0::/45 | — | available | — | … |
| 2001:503:e8e8::/46 | — | available | — | … |
| 2001:503:e8ec::/47 | — | available | — | … |
| 2001:503:e8ee::/48 | — | available | — | … |
| 2001:503:e8f0::/44 | — | available | — | … |
| 2001:503:e900::/40 | — | available | — | … |
| 2001:503:ea00::/39 | — | available | — | … |
| 2001:503:ec00::/39 | — | available | — | … |
| 2001:503:ee00::/41 | — | available | — | … |
| 2001:503:ee80::/43 | — | available | — | … |
| 2001:503:eea0::/47 | — | available | — | … |
| 2001:503:eea2::/48 | — | available | — | … |
| 2001:503:eea4::/46 | — | available | — | … |
| 2001:503:eea8::/45 | — | available | — | … |
| 2001:503:eeb0::/44 | — | available | — | … |
| 2001:503:eec0::/42 | — | available | — | … |
| 2001:503:ef00::/40 | — | available | — | … |
| 2001:503:f000::/40 | — | available | — | … |
| 2001:503:f100::/41 | — | available | — | … |
| 2001:503:f180::/45 | — | available | — | … |
| 2001:503:f188::/48 | — | available | — | … |
| 2001:503:f18a::/47 | — | available | — | … |
| 2001:503:f18c::/46 | — | available | — | … |
| 2001:503:f190::/44 | — | available | — | … |
| 2001:503:f1a0::/43 | — | available | — | … |
| 2001:503:f1c0::/42 | — | available | — | … |
| 2001:503:f200::/42 | — | available | — | … |
| 2001:503:f240::/43 | — | available | — | … |
| 2001:503:f260::/48 | — | available | — | … |
| 2001:503:f262::/47 | — | available | — | … |
| 2001:503:f264::/46 | — | available | — | … |
| 2001:503:f268::/45 | — | available | — | … |
| 2001:503:f270::/44 | — | available | — | … |
| 2001:503:f280::/41 | — | available | — | … |
| 2001:503:f300::/41 | — | available | — | … |
| 2001:503:f380::/42 | — | available | — | … |
| 2001:503:f3c0::/44 | — | available | — | … |
| 2001:503:f3d0::/45 | — | available | — | … |
| 2001:503:f3d8::/47 | — | available | — | … |
| 2001:503:f3db::/48 | — | available | — | … |
| 2001:503:f3dc::/46 | — | available | — | … |
| 2001:503:f3e0::/43 | — | available | — | … |
| 2001:503:f400::/38 | — | available | — | … |
| 2001:503:f800::/38 | — | available | — | … |
| 2001:503:fc00::/39 | — | available | — | … |
| 2001:503:fe00::/40 | — | available | — | … |
| 2001:503:ff00::/43 | — | available | — | … |
| 2001:503:ff20::/44 | — | available | — | … |
| 2001:503:ff30::/45 | — | available | — | … |
| 2001:503:ff38::/48 | — | available | — | … |
| 2001:503:ff3a::/47 | — | available | — | … |
| 2001:503:ff3c::/46 | — | available | — | … |
| 2001:503:ff44::/48 | — | reserved | — | … |
| 2001:503:ff45::/48 | — | available | — | … |
| 2001:503:ff46::/47 | — | available | — | … |
| 2001:503:ff48::/45 | — | available | — | … |
| 2001:503:ff50::/44 | — | available | — | … |
| 2001:503:ff60::/43 | — | available | — | … |
| 2001:503:ff80::/41 | — | available | — | … |
| 2001:504:2::/47 | — | available | — | … |
| 2001:504:4::/46 | — | available | — | … |
| 2001:504:8::/47 | — | available | — | … |
| 2001:504:1e::/47 | — | available | — | … |
| 2001:504:2a::/48 | — | available | — | … |
| 2001:504:2b::/48 | — | reserved | — | … |
| 2001:504:32::/48 | — | available | — | … |
| 2001:504:3a::/48 | — | reserved | — | … |
| 2001:504:42::/48 | — | reserved | — | … |
| 2001:504:48::/45 | — | available | — | … |
| 2001:504:50::/46 | — | available | — | … |