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.
ARIN-Issued lists it as "Remove", but ARIN's statistics show the same record before and after (reserved).
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2020-06-24: "Remove 204.15.208.0-204.15.215.255"source · retrieved
BeforeARIN delegated statistics 2020-06-23 (produced 2020-06-23T14:00:13+00:00), before the report: reservedsource · retrieved
AfterARIN delegated statistics 2020-06-25 (produced 2020-06-25T14:00:14+00:00), after the report: reservedsource · retrieved
Classification history for this change (4 versions)
: No substantive resource change found, strong inference (classifier 1.3.0)
: No substantive resource change found, strong inference (classifier 1.3.1)
: No substantive resource change found, strong inference (classifier 1.3.2)
: No substantive resource change found, strong inference (classifier 1.4.0) current
2013-05-06ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2013-07-05. 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 2005-09-21) on 2013-05-05 and reserved on 2013-05-07. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the estimated hold end is 2013-07-05. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: 204.15.208.0/21 allocated on 2013-05-06, reserved on 2013-05-07source · retrieved
BeforeARIN delegated statistics 2013-05-05 (produced 2013-05-05T05:06:14+00:00), before the report: allocated (dated 2005-09-21)source · retrieved
AfterARIN delegated statistics 2013-05-07 (produced 2013-05-07T05:05:12+00:00), after the report: reservedsource · 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
No transfer log has a transfer of any part of this IPv4 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.