2027-05-09 (from ARIN's published rule; since mid-2024 ARIN has released many of these sooner)
Now
Possible reissue candidate; not confirmed available.
Timeline (2)
Every change the tracker has found, newest first. It covers ARIN from 2008-12-01, the RIPE NCC from 2010-04-23, APNIC from 2008-02-15, LACNIC from 2012-06-29 and AFRINIC from 2012-10-03.
2026-11-09ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inferenceProvisional
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2027-05-09. 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 assigned (dated 2012-06-13) on 2026-11-08 and reserved on 2026-11-10. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the estimated hold end is 2027-05-09. This does not confirm availability. Since mid-2024, ARIN has released many ASNs within two months, before the 6 calendar months were up, so the release can come sooner.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS21933 assigned on 2026-11-09, reserved on 2026-11-10source · retrieved
BeforeARIN delegated statistics 2026-11-08 (produced 2026-11-08T14:00:21+00:00), before the report: assigned (dated 2012-06-13)source · retrieved
AfterARIN delegated statistics 2026-11-10 (produced 2026-11-10T14:00:21+00:00), after the report: reservedsource · retrieved
2010-05-11ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2010-11-11. 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 2001-07-16) on 2010-05-10 and not issued on 2010-05-12. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the estimated hold end is 2010-11-11. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS21933 allocated on 2010-05-11, not listed on 2010-05-12source · retrieved
BeforeARIN delegated statistics 2010-05-10, before the report: allocated (dated 2001-07-16)source · retrieved
AfterARIN delegated statistics 2010-05-12, after the report: not issuedsource · retrieved
Classification history for this change (4 versions)
: Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.0)
: Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.1)
: Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.2)
: Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.4.0) current
Transfer records
No transfer log has a transfer of any part of this ASN.
RDAP lookups
Looked up
Why
Registry
Handle
Organization
Status
Last changed
After 24 hours
not registered (RDAP 404)
First seen
not registered (RDAP 404)
Organization-level details only; contact details are never kept. RDAP shows the registration when it was looked up, not in the past.