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
1,644,924,416
📦
IPv4 networks
76,763
delegated blocks
🧭
IPv6 networks
11,451
delegated blocks
🔗
Autonomous systems
34,128
ASNs
// browse the objects
Browse the ARIN registry
| Prefix | Country | Status | Allocated | Org handle |
|---|---|---|---|---|
| 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 | — | … |
| 2001:503:8029::/48 | — | available | — | … |
| 2001:503:802a::/47 | — | available | — | … |
| 2001:503:802c::/46 | — | available | — | … |
| 2001:503:8030::/44 | — | available | — | … |
| 2001:503:8040::/42 | — | available | — | … |
| 2001:503:8080::/41 | — | available | — | … |
| 2001:503:8100::/40 | — | available | — | … |
| 2001:503:8200::/40 | — | available | — | … |
| 2001:503:8300::/41 | — | available | — | … |
| 2001:503:8380::/42 | — | available | — | … |
| 2001:503:83c0::/43 | — | available | — | … |
| 2001:503:83e0::/45 | — | available | — | … |
| 2001:503:83e8::/47 | — | available | — | … |
| 2001:503:83ea::/48 | — | available | — | … |
| 2001:503:83ec::/46 | — | available | — | … |
| 2001:503:83f0::/44 | — | available | — | … |
| 2001:503:8400::/38 | — | available | — | … |
| 2001:503:8800::/37 | — | available | — | … |
| 2001:503:9000::/40 | — | available | — | … |
| 2001:503:9100::/41 | — | available | — | … |
| 2001:503:9180::/42 | — | available | — | … |
| 2001:503:91c0::/43 | — | available | — | … |
| 2001:503:91e0::/45 | — | available | — | … |
| 2001:503:91e8::/46 | — | available | — | … |
| 2001:503:91ec::/47 | — | available | — | … |
| 2001:503:91ee::/48 | — | available | — | … |
| 2001:503:91f0::/44 | — | available | — | … |
| 2001:503:9200::/39 | — | available | — | … |
| 2001:503:9400::/38 | — | available | — | … |
| 2001:503:9800::/37 | — | available | — | … |
| 2001:503:a000::/40 | — | available | — | … |
| 2001:503:a100::/43 | — | available | — | … |
| 2001:503:a120::/46 | — | available | — | … |
| 2001:503:a125::/48 | — | available | — | … |
| 2001:503:a126::/47 | — | available | — | … |
| 2001:503:a128::/45 | — | available | — | … |
| 2001:503:a130::/44 | — | available | — | … |
| 2001:503:a140::/42 | — | available | — | … |
| 2001:503:a180::/41 | — | available | — | … |
| 2001:503:a200::/39 | — | available | — | … |
| 2001:503:a400::/38 | — | available | — | … |
| 2001:503:a800::/43 | — | available | — | … |
| 2001:503:a820::/44 | — | available | — | … |
| 2001:503:a830::/45 | — | available | — | … |
| 2001:503:a838::/46 | — | available | — | … |
| 2001:503:a83c::/47 | — | available | — | … |
| 2001:503:a83f::/48 | — | available | — | … |
| 2001:503:a840::/42 | — | available | — | … |
| 2001:503:a880::/41 | — | available | — | … |
| 2001:503:a900::/40 | — | available | — | … |
| 2001:503:aa00::/39 | — | available | — | … |
| 2001:503:ac00::/38 | — | available | — | … |
| 2001:503:b000::/37 | — | available | — | … |
| 2001:503:b800::/39 | — | available | — | … |
| 2001:503:ba00::/43 | — | available | — | … |
| 2001:503:ba20::/44 | — | available | — | … |
| 2001:503:ba30::/45 | — | available | — | … |
| 2001:503:ba38::/46 | — | available | — | … |
| 2001:503:ba3c::/47 | — | available | — | … |
| 2001:503:ba3f::/48 | — | available | — | … |
| 2001:503:ba40::/42 | — | available | — | … |
| 2001:503:ba80::/41 | — | available | — | … |
| 2001:503:bb00::/40 | — | available | — | … |
| 2001:503:bc00::/39 | — | available | — | … |
| 2001:503:be00::/40 | — | available | — | … |
| 2001:503:bf00::/41 | — | available | — | … |
| 2001:503:bf80::/43 | — | available | — | … |
| 2001:503:bfa0::/44 | — | available | — | … |
| 2001:503:bfb1::/48 | — | available | — | … |
| 2001:503:bfb2::/47 | — | available | — | … |
| 2001:503:bfb4::/46 | — | available | — | … |
| 2001:503:bfb8::/45 | — | available | — | … |
| 2001:503:bfc0::/42 | — | available | — | … |
| 2001:503:c000::/38 | — | available | — | … |
| 2001:503:c400::/39 | — | available | — | … |
| 2001:503:c600::/40 | — | available | — | … |
| 2001:503:c700::/42 | — | available | — | … |
| 2001:503:c740::/43 | — | available | — | … |
| 2001:503:c760::/44 | — | available | — | … |
| 2001:503:c770::/45 | — | available | — | … |
| 2001:503:c778::/48 | — | available | — | … |
| 2001:503:c77a::/47 | — | available | — | … |
| 2001:503:c77c::/46 | — | available | — | … |
| 2001:503:c780::/41 | — | available | — | … |
| 2001:503:c800::/38 | — | available | — | … |