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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
2620:139:3200::/39 available
2620:139:3400::/38 available
2620:139:3800::/37 available
2620:139:4010::/44 reserved
2620:139:4020::/43 reserved
2620:139:4040::/42 reserved
2620:139:4080::/41 reserved
2620:139:4100::/40 available
2620:139:4200::/39 available
2620:139:4400::/38 available
2620:139:4800::/37 available
2620:139:5010::/44 reserved
2620:139:5020::/43 reserved
2620:139:5040::/42 reserved
2620:139:5080::/41 reserved
2620:139:5100::/40 available
2620:139:5200::/39 available
2620:139:5400::/38 available
2620:139:5800::/37 available
2620:139:6010::/44 reserved
2620:139:6020::/43 reserved
2620:139:6040::/42 reserved
2620:139:6080::/41 reserved
2620:139:6100::/40 available
2620:139:6200::/39 available
2620:139:6400::/38 available
2620:139:6800::/37 available
2620:139:7100::/40 reserved
2620:139:7200::/39 reserved
2620:139:7400::/38 reserved
2620:139:7800::/37 reserved
2620:139:8100::/40 reserved
2620:139:8200::/39 reserved
2620:139:8400::/38 reserved
2620:139:8800::/37 reserved
2620:139:9010::/44 reserved
2620:139:9020::/43 reserved
2620:139:9040::/42 reserved
2620:139:9080::/41 reserved
2620:139:9100::/40 available
2620:139:9200::/39 available
2620:139:9400::/38 available
2620:139:9800::/37 available
2620:139:a010::/44 reserved
2620:139:a020::/43 reserved
2620:139:a040::/42 reserved
2620:139:a080::/41 reserved
2620:139:a100::/40 available
2620:139:a200::/39 available
2620:139:a400::/38 available
2620:139:a800::/37 available
2620:139:b100::/40 reserved
2620:139:b200::/39 reserved
2620:139:b400::/38 reserved
2620:139:b800::/37 reserved
2620:139:c100::/40 reserved
2620:139:c200::/39 reserved
2620:139:c400::/38 reserved
2620:139:c800::/37 reserved
2620:139:d000::/44 reserved
2620:139:d010::/44 reserved
2620:139:d020::/43 reserved
2620:139:d040::/42 reserved
2620:139:d080::/41 reserved
2620:139:d100::/40 available
2620:139:d200::/39 available
2620:139:d400::/38 available
2620:139:d800::/37 available
2620:139:e010::/44 reserved
2620:139:e020::/43 reserved
2620:139:e040::/42 reserved
2620:139:e080::/41 reserved
2620:139:e100::/40 available
2620:139:e200::/39 available
2620:139:e400::/38 available
2620:139:e800::/37 available
2620:139:f000::/36 available
2620:13a::/44 reserved
2620:13a:10::/44 reserved
2620:13a:20::/43 reserved
2620:13a:40::/42 reserved
2620:13a:80::/41 reserved
2620:13a:100::/40 available
2620:13a:200::/39 available
2620:13a:400::/38 available
2620:13a:800::/37 available
2620:13a:1100::/40 reserved
2620:13a:1200::/39 reserved
2620:13a:1400::/38 reserved
2620:13a:1800::/37 reserved
2620:13a:2100::/40 reserved
2620:13a:2200::/39 reserved
2620:13a:2400::/38 reserved
2620:13a:2800::/37 reserved
2620:13a:3010::/44 reserved
2620:13a:3020::/43 reserved
2620:13a:3040::/42 reserved
2620:13a:3080::/41 reserved
2620:13a:3100::/40 available
2620:13a:3200::/39 available
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