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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
2620:130:d200::/39 available
2620:130:d400::/38 available
2620:130:d800::/37 available
2620:130:e010::/44 reserved
2620:130:e020::/43 reserved
2620:130:e040::/42 reserved
2620:130:e080::/41 reserved
2620:130:e100::/40 available
2620:130:e200::/39 available
2620:130:e400::/38 available
2620:130:e800::/37 available
2620:130:f010::/44 reserved
2620:130:f020::/43 reserved
2620:130:f040::/42 reserved
2620:130:f080::/41 reserved
2620:130:f100::/40 available
2620:130:f200::/39 available
2620:130:f400::/38 available
2620:130:f800::/37 available
2620:131::/44 reserved
2620:131:10::/44 reserved
2620:131:20::/43 reserved
2620:131:40::/42 reserved
2620:131:80::/41 reserved
2620:131:100::/40 available
2620:131:200::/39 available
2620:131:400::/38 available
2620:131:800::/37 available
2620:131:1100::/40 reserved
2620:131:1200::/39 reserved
2620:131:1400::/38 reserved
2620:131:1800::/37 reserved
2620:131:2100::/40 reserved
2620:131:2200::/39 reserved
2620:131:2400::/38 reserved
2620:131:2800::/37 reserved
2620:131:3010::/44 reserved
2620:131:3020::/43 reserved
2620:131:3040::/42 reserved
2620:131:3080::/41 reserved
2620:131:3100::/40 available
2620:131:3200::/39 available
2620:131:3400::/38 available
2620:131:3800::/37 available
2620:131:4100::/40 reserved
2620:131:4200::/39 reserved
2620:131:4400::/38 reserved
2620:131:4800::/37 reserved
2620:131:5100::/40 reserved
2620:131:5200::/39 reserved
2620:131:5400::/38 reserved
2620:131:5800::/37 reserved
2620:131:7100::/40 reserved
2620:131:7200::/39 reserved
2620:131:7400::/38 reserved
2620:131:7800::/37 reserved
2620:131:8010::/44 reserved
2620:131:8020::/43 reserved
2620:131:8040::/42 reserved
2620:131:8080::/41 reserved
2620:131:8100::/40 available
2620:131:8200::/39 available
2620:131:8400::/38 available
2620:131:8800::/37 available
2620:131:9100::/40 reserved
2620:131:9200::/39 reserved
2620:131:9400::/38 reserved
2620:131:9800::/37 reserved
2620:131:a000::/40 reserved
2620:131:a100::/40 reserved
2620:131:a200::/39 reserved
2620:131:a400::/38 reserved
2620:131:a800::/37 reserved
2620:131:b100::/40 reserved
2620:131:b200::/39 reserved
2620:131:b400::/38 reserved
2620:131:b800::/37 reserved
2620:131:c010::/44 reserved
2620:131:c020::/43 reserved
2620:131:c040::/42 reserved
2620:131:c080::/41 reserved
2620:131:c100::/40 available
2620:131:c200::/39 available
2620:131:c400::/38 available
2620:131:c800::/37 available
2620:131:d100::/40 reserved
2620:131:d200::/39 reserved
2620:131:d400::/38 reserved
2620:131:d800::/37 reserved
2620:131:e010::/44 reserved
2620:131:e020::/43 reserved
2620:131:e040::/42 reserved
2620:131:e080::/41 reserved
2620:131:e100::/40 available
2620:131:e200::/39 available
2620:131:e400::/38 available
2620:131:e800::/37 available
2620:131:f100::/40 reserved
2620:131:f200::/39 reserved
2620:131:f400::/38 reserved
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