This data was last updated ago, at 2026-10-09 21:19 UTC. The site normally updates once a day, so the latest update didn't finish; recent changes may be missing.
IPv6 range · 19,342,813,113,834,066,795,298,816 addresses
2620:10a:c000::/44
Now
ARIN statistics
Allocated (dated 2026-07-07) on 2026-10-09 (US)
Registry
ARIN
Holder
Not looked up
From
ARIN's statistics for 2026-10-09
Latest change
+ AddApparent reissuance of previously removed resource
No transfer record matches. ARIN's statistics show it reserved on 2026-07-06 and allocated (dated 2026-07-07) on 2026-07-08. The tracker saw this range removed from registration on 2026-01-05 (2620:10a:c000::/44), so it appears to have been issued again from ARIN's pool.
Evidence (3) · classifier 1.0.0,
ARIN-IssuedARIN-Issued report for 2026-07-07: "Add 2620:10A:C000::-2620:10A:C00F:FFFF:FFFF:FFFF:FFFF:FFFF"source · retrieved
BeforeARIN delegated statistics 2026-07-06 (produced 2026-07-06T09:00:22+00:00), before the report: reservedsource · retrieved
AfterARIN delegated statistics 2026-07-08 (produced 2026-07-08T09:00:21+00:00), after the report: allocated (dated 2026-07-07)source · retrieved
2026-07-07− RemoveChange to ARIN's own pool recordStrong inference
ARIN's statistics show it reserved on 2026-07-06 and allocated (dated 2026-07-07) on 2026-07-08. ARIN removed its own pool record for this range as part of issuing it: the same report adds 2620:10A:C000::-2620:10A:C00F:FFFF:FFFF:FFFF:FFFF:FFFF. The issuance is explained on that line.
Evidence (3) · classifier 1.0.0,
ARIN-IssuedARIN-Issued report for 2026-07-07: "Remove 2620:10A:C000::-2620:10A:C00F:FFFF:FFFF:FFFF:FFFF:FFFF"source · retrieved
BeforeARIN delegated statistics 2026-07-06 (produced 2026-07-06T09:00:22+00:00), before the report: reservedsource · retrieved
AfterARIN delegated statistics 2026-07-08 (produced 2026-07-08T09:00:21+00:00), after the report: allocated (dated 2026-07-07)source · retrieved
2026-01-05Not in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Earliest estimated hold expiration 2026-07-05. Possible reissue candidate after this date; not confirmed available.
Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2012-02-09) on 2026-01-04 and reserved on 2026-01-06. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv6 for 6 calendar months before reissuing them, so the earliest estimated hold expiration is 2026-07-05. This does not confirm availability.
Evidence (3) · classifier 1.0.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: 2620:10a:c000::/44 allocated on 2026-01-05, reserved on 2026-01-06source · retrieved
BeforeARIN delegated statistics 2026-01-04 (produced 2026-01-04T14:00:47+00:00), before the report: allocated (dated 2012-02-09)source · retrieved
AfterARIN delegated statistics 2026-01-06 (produced 2026-01-06T14:00:48+00:00), after the report: reservedsource · retrieved
Transfer records
ARIN's transfer log has no transfer of any part of this IPv6 range.
RDAP lookups
Not looked up. The tracker queries RDAP for changes as they're reported (on first sight, after 24 hours and after seven days); older changes aren't looked up because today's RDAP says nothing about the past.