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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
2620:12a:c400::/38 reserved
2620:12a:c800::/37 reserved
2620:12a:d100::/40 reserved
2620:12a:d200::/39 reserved
2620:12a:d400::/38 reserved
2620:12a:d800::/37 reserved
2620:12a:e010::/44 reserved
2620:12a:e020::/43 reserved
2620:12a:e040::/42 reserved
2620:12a:e080::/41 reserved
2620:12a:e100::/40 available
2620:12a:e200::/39 available
2620:12a:e400::/38 available
2620:12a:e800::/37 available
2620:12a:f100::/40 reserved
2620:12a:f200::/39 reserved
2620:12a:f400::/38 reserved
2620:12a:f800::/37 reserved
2620:12b:10::/44 reserved
2620:12b:20::/43 reserved
2620:12b:40::/42 reserved
2620:12b:80::/41 reserved
2620:12b:100::/40 available
2620:12b:200::/39 available
2620:12b:400::/38 available
2620:12b:800::/37 available
2620:12b:1100::/40 reserved
2620:12b:1200::/39 reserved
2620:12b:1400::/38 reserved
2620:12b:1800::/37 reserved
2620:12b:2100::/40 reserved
2620:12b:2200::/39 reserved
2620:12b:2400::/38 reserved
2620:12b:2800::/37 reserved
2620:12b:3100::/40 reserved
2620:12b:3200::/39 reserved
2620:12b:3400::/38 reserved
2620:12b:3800::/37 reserved
2620:12b:4100::/40 reserved
2620:12b:4200::/39 reserved
2620:12b:4400::/38 reserved
2620:12b:4800::/37 reserved
2620:12b:5100::/40 reserved
2620:12b:5200::/39 reserved
2620:12b:5400::/38 reserved
2620:12b:5800::/37 reserved
2620:12b:6010::/44 reserved
2620:12b:6020::/43 reserved
2620:12b:6040::/42 reserved
2620:12b:6080::/41 reserved
2620:12b:6100::/40 available
2620:12b:6200::/39 available
2620:12b:6400::/38 available
2620:12b:6800::/37 available
2620:12b:7000::/44 reserved
2620:12b:7010::/44 reserved
2620:12b:7020::/43 reserved
2620:12b:7040::/42 reserved
2620:12b:7080::/41 reserved
2620:12b:7100::/40 available
2620:12b:7200::/39 available
2620:12b:7400::/38 available
2620:12b:7800::/37 available
2620:12b:8100::/40 reserved
2620:12b:8200::/39 reserved
2620:12b:8400::/38 reserved
2620:12b:8800::/37 reserved
2620:12b:9010::/44 reserved
2620:12b:9020::/43 reserved
2620:12b:9040::/42 reserved
2620:12b:9080::/41 reserved
2620:12b:9100::/40 available
2620:12b:9200::/39 available
2620:12b:9400::/38 available
2620:12b:9800::/37 available
2620:12b:a100::/40 reserved
2620:12b:a200::/39 reserved
2620:12b:a400::/38 reserved
2620:12b:a800::/37 reserved
2620:12b:b010::/44 reserved
2620:12b:b020::/43 reserved
2620:12b:b040::/42 reserved
2620:12b:b080::/41 reserved
2620:12b:b100::/40 available
2620:12b:b200::/39 available
2620:12b:b400::/38 available
2620:12b:b800::/37 available
2620:12b:c100::/40 reserved
2620:12b:c200::/39 reserved
2620:12b:c400::/38 reserved
2620:12b:c800::/37 reserved
2620:12b:d010::/44 reserved
2620:12b:d020::/43 reserved
2620:12b:d040::/42 reserved
2620:12b:d080::/41 reserved
2620:12b:d100::/40 available
2620:12b:d200::/39 available
2620:12b:d400::/38 available
2620:12b:d800::/37 available
2620:12b:e100::/40 reserved
89,401–89,500 of 92,001 « first‹ prev 893894895896897 next ›last » of 921