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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
1,645,875,712
📦
IPv4 networks
76,665
delegated blocks
🧭
IPv6 networks
11,326
delegated blocks
🔗
Autonomous systems
34,014
ASNs
// browse the objects

Browse the ARIN registry

IPv4 blocks IPv6 blocks ASNs
PrefixCountryStatusAllocatedOrg handle
2620:12b:e200::/39 reserved
2620:12b:e400::/38 reserved
2620:12b:e800::/37 reserved
2620:12b:f100::/40 reserved
2620:12b:f200::/39 reserved
2620:12b:f400::/38 reserved
2620:12b:f800::/37 reserved
2620:12c:10::/44 reserved
2620:12c:20::/43 reserved
2620:12c:40::/42 reserved
2620:12c:80::/41 reserved
2620:12c:100::/40 available
2620:12c:200::/39 available
2620:12c:400::/38 available
2620:12c:800::/37 available
2620:12c:1010::/44 reserved
2620:12c:1020::/43 reserved
2620:12c:1040::/42 reserved
2620:12c:1080::/41 reserved
2620:12c:1100::/40 available
2620:12c:1200::/39 available
2620:12c:1400::/38 available
2620:12c:1800::/37 available
2620:12c:2000::/40 reserved
2620:12c:2100::/40 reserved
2620:12c:2200::/39 reserved
2620:12c:2400::/38 reserved
2620:12c:2800::/37 reserved
2620:12c:3010::/44 reserved
2620:12c:3020::/43 reserved
2620:12c:3040::/42 reserved
2620:12c:3080::/41 reserved
2620:12c:3100::/40 available
2620:12c:3200::/39 available
2620:12c:3400::/38 available
2620:12c:3800::/37 available
2620:12c:4010::/44 reserved
2620:12c:4020::/43 reserved
2620:12c:4040::/42 reserved
2620:12c:4080::/41 reserved
2620:12c:4100::/40 available
2620:12c:4200::/39 available
2620:12c:4400::/38 available
2620:12c:4800::/37 available
2620:12c:5100::/40 reserved
2620:12c:5200::/39 reserved
2620:12c:5400::/38 reserved
2620:12c:5800::/37 reserved
2620:12c:6010::/44 reserved
2620:12c:6020::/43 reserved
2620:12c:6040::/42 reserved
2620:12c:6080::/41 reserved
2620:12c:6100::/40 available
2620:12c:6200::/39 available
2620:12c:6400::/38 available
2620:12c:6800::/37 available
2620:12c:7010::/44 reserved
2620:12c:7020::/43 reserved
2620:12c:7040::/42 reserved
2620:12c:7080::/41 reserved
2620:12c:7100::/40 available
2620:12c:7200::/39 available
2620:12c:7400::/38 available
2620:12c:7800::/37 available
2620:12c:8100::/40 reserved
2620:12c:8200::/39 reserved
2620:12c:8400::/38 reserved
2620:12c:8800::/37 reserved
2620:12c:9100::/40 available
2620:12c:9200::/39 available
2620:12c:9400::/38 available
2620:12c:9800::/37 available
2620:12c:a000::/44 reserved
2620:12c:a010::/44 reserved
2620:12c:a020::/43 reserved
2620:12c:a040::/42 reserved
2620:12c:a080::/41 reserved
2620:12c:a100::/40 available
2620:12c:a200::/39 available
2620:12c:a400::/38 available
2620:12c:a800::/37 available
2620:12c:b100::/40 reserved
2620:12c:b200::/39 reserved
2620:12c:b400::/38 reserved
2620:12c:b800::/37 reserved
2620:12c:c010::/44 reserved
2620:12c:c020::/43 reserved
2620:12c:c040::/42 reserved
2620:12c:c080::/41 reserved
2620:12c:c100::/40 available
2620:12c:c200::/39 available
2620:12c:c400::/38 available
2620:12c:c800::/37 available
2620:12c:d100::/40 reserved
2620:12c:d200::/39 reserved
2620:12c:d400::/38 reserved
2620:12c:d800::/37 reserved
2620:12c:e000::/44 reserved
2620:12c:e010::/44 reserved
2620:12c:e020::/43 reserved
89,501–89,600 of 92,001 « first‹ prev 894895896897898 next ›last » of 921