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:d30::/44 | — | available | — | … |
| 2001:503:d40::/42 | — | available | — | … |
| 2001:503:d80::/41 | — | available | — | … |
| 2001:503:e00::/39 | — | available | — | … |
| 2001:503:1000::/36 | — | available | — | … |
| 2001:503:2000::/39 | — | available | — | … |
| 2001:503:2200::/40 | — | available | — | … |
| 2001:503:2300::/44 | — | available | — | … |
| 2001:503:2310::/45 | — | available | — | … |
| 2001:503:2318::/46 | — | available | — | … |
| 2001:503:231c::/48 | — | available | — | … |
| 2001:503:231e::/47 | — | available | — | … |
| 2001:503:2320::/43 | — | available | — | … |
| 2001:503:2340::/42 | — | available | — | … |
| 2001:503:2380::/41 | — | available | — | … |
| 2001:503:2400::/38 | — | available | — | … |
| 2001:503:2800::/37 | — | available | — | … |
| 2001:503:3000::/39 | — | available | — | … |
| 2001:503:3200::/43 | — | available | — | … |
| 2001:503:3220::/46 | — | available | — | … |
| 2001:503:3224::/47 | — | available | — | … |
| 2001:503:3226::/48 | — | available | — | … |
| 2001:503:3228::/45 | — | available | — | … |
| 2001:503:3230::/44 | — | available | — | … |
| 2001:503:3240::/42 | — | available | — | … |
| 2001:503:3280::/41 | — | available | — | … |
| 2001:503:3300::/40 | — | available | — | … |
| 2001:503:3400::/38 | — | available | — | … |
| 2001:503:3800::/40 | — | available | — | … |
| 2001:503:3900::/41 | — | available | — | … |
| 2001:503:3980::/42 | — | available | — | … |
| 2001:503:39c0::/48 | — | available | — | … |
| 2001:503:39c2::/47 | — | available | — | … |
| 2001:503:39c4::/46 | — | available | — | … |
| 2001:503:39c8::/45 | — | available | — | … |
| 2001:503:39d0::/44 | — | available | — | … |
| 2001:503:39e0::/43 | — | available | — | … |
| 2001:503:3a00::/39 | — | available | — | … |
| 2001:503:3c00::/38 | — | available | — | … |
| 2001:503:4000::/37 | — | available | — | … |
| 2001:503:4800::/42 | — | available | — | … |
| 2001:503:4840::/43 | — | available | — | … |
| 2001:503:4860::/44 | — | available | — | … |
| 2001:503:4870::/47 | — | available | — | … |
| 2001:503:4873::/48 | — | available | — | … |
| 2001:503:4874::/46 | — | available | — | … |
| 2001:503:4878::/45 | — | available | — | … |
| 2001:503:4880::/41 | — | available | — | … |
| 2001:503:4900::/40 | — | available | — | … |
| 2001:503:4a00::/39 | — | available | — | … |
| 2001:503:4c00::/38 | — | available | — | … |
| 2001:503:5000::/38 | — | available | — | … |
| 2001:503:5400::/44 | — | available | — | … |
| 2001:503:5410::/45 | — | available | — | … |
| 2001:503:5418::/48 | — | available | — | … |
| 2001:503:541a::/47 | — | available | — | … |
| 2001:503:541c::/46 | — | available | — | … |
| 2001:503:5420::/43 | — | available | — | … |
| 2001:503:5440::/42 | — | available | — | … |
| 2001:503:5480::/41 | — | available | — | … |
| 2001:503:5500::/40 | — | available | — | … |
| 2001:503:5600::/39 | — | available | — | … |
| 2001:503:5800::/39 | — | available | — | … |
| 2001:503:5a00::/41 | — | available | — | … |
| 2001:503:5a80::/42 | — | available | — | … |
| 2001:503:5ac0::/43 | — | available | — | … |
| 2001:503:5ae0::/47 | — | available | — | … |
| 2001:503:5ae3::/48 | — | available | — | … |
| 2001:503:5ae4::/46 | — | available | — | … |
| 2001:503:5ae8::/45 | — | available | — | … |
| 2001:503:5af0::/44 | — | available | — | … |
| 2001:503:5b00::/40 | — | available | — | … |
| 2001:503:5c00::/38 | — | available | — | … |
| 2001:503:6000::/37 | — | available | — | … |
| 2001:503:6800::/44 | — | available | — | … |
| 2001:503:6811::/48 | — | available | — | … |
| 2001:503:6812::/47 | — | available | — | … |
| 2001:503:6814::/46 | — | available | — | … |
| 2001:503:6818::/45 | — | available | — | … |
| 2001:503:6820::/43 | — | available | — | … |
| 2001:503:6840::/42 | — | available | — | … |
| 2001:503:6880::/41 | — | available | — | … |
| 2001:503:6900::/40 | — | available | — | … |
| 2001:503:6a00::/39 | — | available | — | … |
| 2001:503:6c00::/38 | — | available | — | … |
| 2001:503:7000::/37 | — | available | — | … |
| 2001:503:7800::/39 | — | available | — | … |
| 2001:503:7a00::/40 | — | available | — | … |
| 2001:503:7b00::/41 | — | available | — | … |
| 2001:503:7b80::/43 | — | available | — | … |
| 2001:503:7ba0::/44 | — | available | — | … |
| 2001:503:7bb0::/45 | — | available | — | … |
| 2001:503:7bb8::/47 | — | available | — | … |
| 2001:503:7bba::/48 | — | available | — | … |
| 2001:503:7bbc::/47 | — | available | — | … |
| 2001:503:7bbe::/48 | — | available | — | … |
| 2001:503:7bc0::/42 | — | available | — | … |
| 2001:503:7c00::/38 | — | available | — | … |
| 2001:503:8000::/43 | — | available | — | … |
| 2001:503:8020::/45 | — | available | — | … |