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.
2026-09-21APNIC+ RegisteredRestored to the same holderStrong inference
Statistics
124.150.136.0/24 reserved on 2026-09-21, allocated on 2026-09-22
Inventory
No effect on APNIC applicant inventory
No transfer record matches. APNIC's statistics show it reserved on 2026-09-21 and allocated (dated 2018-02-23) on 2026-09-22. The tracker saw it removed from registration on 2026-09-14 (7 days earlier), and it is back with the same holder record it had before, so it went back to its previous holder rather than to a new one: most likely a suspension lifted, a reinstatement or a correction.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing APNIC's daily statistics: 124.150.136.0/24 reserved on 2026-09-21, allocated on 2026-09-22source · retrieved
BeforeAPNIC delegated statistics 2026-09-21, before the change: reservedsource · retrieved
AfterAPNIC delegated statistics 2026-09-22, after the change: allocated (dated 2018-02-23)source · retrieved
Classification history for this change (5 versions)
: Restored to the same holder, strong inference (classifier 1.2.0)
: Restored to the same holder, strong inference (classifier 1.3.0)
: Restored to the same holder, strong inference (classifier 1.3.1)
: Restored to the same holder, strong inference (classifier 1.3.2)
: Restored to the same holder, strong inference (classifier 1.4.0) current
2026-09-14APNIC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
124.150.136.0/24 allocated on 2026-09-14, reserved on 2026-09-15
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2027-09-14. Possible reissue candidate after this date; not confirmed available.
Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it allocated (dated 2018-02-23) on 2026-09-14 and reserved on 2026-09-15. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no hold period, but its statistics have released returned IPv4 space a year after the removal or later since 2014, so the tracker estimates the hold ends on 2027-09-14. That is what APNIC has done, not a rule it states. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing APNIC's daily statistics: 124.150.136.0/24 allocated on 2026-09-14, reserved on 2026-09-15source · retrieved
BeforeAPNIC delegated statistics 2026-09-14, before the change: allocated (dated 2018-02-23)source · retrieved
AfterAPNIC delegated statistics 2026-09-15, after the change: reservedsource · retrieved
Classification history for this change (5 versions)
: Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.2.0)
: 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
2018-02-23APNIC+ RegisteredApparent reissuance of previously removed resourceStrong inference
Statistics
124.150.136.0/24 available on 2018-02-23, allocated on 2018-02-24
Inventory
Likely issued from APNIC-controlled inventory
No transfer record matches. APNIC's statistics show it available on 2018-02-23 and allocated (dated 2018-02-23) on 2018-02-24. The tracker saw this range released from hold on 2017-09-04 (124.150.136.0/24), so it appears to have been issued again from APNIC's pool.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing APNIC's daily statistics: 124.150.136.0/24 available on 2018-02-23, allocated on 2018-02-24source · retrieved
BeforeAPNIC delegated statistics 2018-02-23, before the change: availablesource · retrieved
AfterAPNIC delegated statistics 2018-02-24, after the change: allocated (dated 2018-02-23)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2017-09-04APNICReleasedReleased from hold (APNIC lists it as 'available')Strong inference
Statistics
124.150.136.0/24 reserved on 2017-09-04, available on 2017-09-05
Inventory
APNIC's statistics now list it as 'available'; reissue not confirmed
APNIC's statistics show it reserved on 2017-09-04 and available on 2017-09-05. APNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2016-08-25, 375 days earlier. That is APNIC's own label: whether and when it is reissued is not confirmed.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing APNIC's daily statistics: 124.150.136.0/24 reserved on 2017-09-04, available on 2017-09-05source · retrieved
BeforeAPNIC delegated statistics 2017-09-04, before the change: reservedsource · retrieved
AfterAPNIC delegated statistics 2017-09-05, after the change: availablesource · retrieved
Classification history for this change (4 versions)
: Released from hold (APNIC lists it as 'available'), strong inference (classifier 1.3.0)
: Released from hold (APNIC lists it as 'available'), strong inference (classifier 1.3.1)
: Released from hold (APNIC lists it as 'available'), strong inference (classifier 1.3.2)
: Released from hold (APNIC lists it as 'available'), strong inference (classifier 1.4.0) current
2016-08-25APNIC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
124.150.136.0/24 assigned on 2016-08-25, reserved on 2016-08-26
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2017-08-25. Possible reissue candidate after this date; not confirmed available.
Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it assigned (dated 2010-08-04) on 2016-08-25 and reserved on 2016-08-26. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no hold period, but its statistics have released returned IPv4 space a year after the removal or later since 2014, so the tracker estimates the hold ends on 2017-08-25. That is what APNIC has done, not a rule it states. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing APNIC's daily statistics: 124.150.136.0/24 assigned on 2016-08-25, reserved on 2016-08-26source · retrieved
BeforeAPNIC delegated statistics 2016-08-25, before the change: assigned (dated 2010-08-04)source · retrieved
AfterAPNIC delegated statistics 2016-08-26, after the change: 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.