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.
2022-04-08ARIN− RemoveChange to ARIN's own pool recordStrong inference
ARIN-Issued
Remove 74.123.136.0-74.123.143.255
Inventory
Part of the issuance reported the same day
ARIN's statistics show it reserved on 2022-04-07 and allocated (dated 2022-04-08), reserved on 2022-04-09. ARIN removed its own pool record for this range as part of issuing it: the same report adds 74.123.136.0-74.123.139.255. The issuance is explained on that line.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2022-04-08: "Remove 74.123.136.0-74.123.143.255"source · retrieved
BeforeARIN delegated statistics 2022-04-07 (produced 2022-04-07T13:00:11+00:00), before the report: reservedsource · retrieved
AfterARIN delegated statistics 2022-04-09 (produced 2022-04-09T13:00:10+00:00), after the report: allocated (dated 2022-04-08), reservedsource · retrieved
Classification history for this change (4 versions)
: Change to ARIN's own pool record, strong inference (classifier 1.3.0)
: Change to ARIN's own pool record, strong inference (classifier 1.3.1)
: Change to ARIN's own pool record, strong inference (classifier 1.3.2)
: Change to ARIN's own pool record, strong inference (classifier 1.4.0) current
2014-08-05ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2014-10-04. 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 2010-03-18) on 2014-08-04 and reserved on 2014-08-06. 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 2014-10-04. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: 74.123.136.0/21 allocated on 2014-08-05, reserved on 2014-08-06source · retrieved
BeforeARIN delegated statistics 2014-08-04 (produced 2014-08-04T05:04:41+00:00), before the report: allocated (dated 2010-03-18)source · retrieved
AfterARIN delegated statistics 2014-08-06 (produced 2014-08-06T05:04:56+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
2010-03-18ARIN+ AddApparent new issuanceStrong inference
ARIN-Issued
Add 74.123.136.0-74.123.143.255
Inventory
Likely issued from ARIN-controlled inventory
No transfer record matches. ARIN's statistics show it not issued on 2010-03-17 and allocated (dated 2010-03-18) on 2010-03-19. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2010-03-18: "Add 74.123.136.0-74.123.143.255"source · retrieved
BeforeARIN delegated statistics 2010-03-17, before the report: not issuedsource · retrieved
AfterARIN delegated statistics 2010-03-19, after the report: allocated (dated 2010-03-18)source · retrieved
Classification history for this change (4 versions)
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.