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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
ASCountryStatusAllocatedOrg handle
AS63277 reserved
AS63342 reserved
AS63352 reserved
AS63387 reserved
AS63401 reserved
AS63422 reserved
AS64244 reserved
AS64277 reserved
AS393219 reserved
AS393231 reserved
AS393266 reserved
AS393277 reserved
AS393333 reserved
AS393402 reserved
AS393403 reserved
AS393421 reserved
AS393454 reserved
AS393476 reserved
AS393484 reserved
AS393498 reserved
AS393515 reserved
AS393528 reserved
AS393570 reserved
AS393608 reserved
AS393614 reserved
AS393631 reserved
AS393715 reserved
AS393808 reserved
AS393829 reserved
AS393944 reserved
AS394005 reserved
AS394030 reserved
AS394078 reserved
AS394119 reserved
AS394178 reserved
AS394181 reserved
AS394187 reserved
AS394203 reserved
AS394245 reserved
AS394260 reserved
AS394264 reserved
AS394293 reserved
AS394374 reserved
AS394402 reserved
AS394405 reserved
AS394477 reserved
AS394500 reserved
AS394505 reserved
AS394513 reserved
AS394529 reserved
AS394531 reserved
AS394543 reserved
AS394582 reserved
AS394634 reserved
AS394635 reserved
AS394713 reserved
AS394754 reserved
AS394779 reserved
AS394807 reserved
AS394835 reserved
AS394900 reserved
AS394936 reserved
AS394939 reserved
AS394970 reserved
AS395025 reserved
AS395115 reserved
AS395163 reserved
AS395195 reserved
AS395196 reserved
AS395197 reserved
AS395199 reserved
AS395265 reserved
AS395270 reserved
AS395281 reserved
AS395293 reserved
AS395312 reserved
AS395350 reserved
AS395376 reserved
AS395377 reserved
AS395406 reserved
AS395411 reserved
AS395457 reserved
AS395459 reserved
AS395476 reserved
AS395492 reserved
AS395493 reserved
AS395495 reserved
AS395527 reserved
AS395531 reserved
AS395554 reserved
AS395557 reserved
AS395578 reserved
AS395588 reserved
AS395616 reserved
AS395667 reserved
AS395669 reserved
AS395674 reserved
AS395681 reserved
AS395697 reserved
AS395710 reserved
32,401–32,500 of 32,715 « first‹ prev 323324325326327 next ›last » of 328