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.
2015-03-19ARIN− RemoveChange to ARIN's own pool recordObserved only
ARIN-Issued
Remove 192.155.36.0-192.155.36.255
Inventory
Inventory effect unknown
ARIN's statistics show it reserved on 2015-03-18 and assigned (dated 1992-04-09) on 2015-03-20. ARIN removed its own pool record for this range and the range is now registered, but the same report doesn't list it as added.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2015-03-19: "Remove 192.155.36.0-192.155.36.255"source · retrieved
BeforeARIN delegated statistics 2015-03-18 (produced 2015-03-18T05:05:25+00:00), before the report: reservedsource · retrieved
AfterARIN delegated statistics 2015-03-20 (produced 2015-03-20T05:05:56+00:00), after the report: assigned (dated 1992-04-09)source · retrieved
Classification history for this change (4 versions)
: Change to ARIN's own pool record, observed only (classifier 1.3.0)
: Change to ARIN's own pool record, observed only (classifier 1.3.1)
: Change to ARIN's own pool record, observed only (classifier 1.3.2)
: Change to ARIN's own pool record, observed only (classifier 1.4.0) current
2014-11-11ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2015-01-10. 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 1992-04-09) on 2014-11-10 and reserved on 2014-11-12. 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 2015-01-10. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: 192.155.36.0/24 assigned on 2014-11-11, reserved on 2014-11-12source · retrieved
BeforeARIN delegated statistics 2014-11-10 (produced 2014-11-10T06:04:25+00:00), before the report: assigned (dated 1992-04-09)source · retrieved
AfterARIN delegated statistics 2014-11-12 (produced 2014-11-12T06:04:11+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
2014-11-04ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2015-01-03. 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 1992-04-09) on 2014-11-03 and reserved on 2014-11-05. 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 2015-01-03. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: 192.155.36.0/24 assigned on 2014-11-04, reserved on 2014-11-05source · retrieved
BeforeARIN delegated statistics 2014-11-03 (produced 2014-11-03T06:03:55+00:00), before the report: assigned (dated 1992-04-09)source · retrieved
AfterARIN delegated statistics 2014-11-05 (produced 2014-11-05T06:04:34+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
Transfer records
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.