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.
2026-10-19APNIC+ RegisteredRestored to the same holderStrong inference
Statistics
157.20.42.0/23 reserved on 2026-10-19, allocated on 2026-10-20
Inventory
No effect on APNIC applicant inventory
No transfer record matches. APNIC's statistics show it reserved on 2026-10-19 and allocated (dated 2024-02-16) on 2026-10-20. The tracker saw it removed from registration on 2026-06-16 (125 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: 157.20.42.0/23 reserved on 2026-10-19, allocated on 2026-10-20source · retrieved
BeforeAPNIC delegated statistics 2026-10-19, before the change: reservedsource · retrieved
AfterAPNIC delegated statistics 2026-10-20, after the change: allocated (dated 2024-02-16)source · retrieved
2026-06-16APNIC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
157.20.42.0/23 allocated on 2026-06-16, reserved on 2026-06-17
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2027-06-16. 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 2024-02-16) on 2026-06-16 and reserved on 2026-06-17. 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 2027-06-16. 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: 157.20.42.0/23 allocated on 2026-06-16, reserved on 2026-06-17source · retrieved
BeforeAPNIC delegated statistics 2026-06-16, before the change: allocated (dated 2024-02-16)source · retrieved
AfterAPNIC delegated statistics 2026-06-17, 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
2024-02-16APNIC+ RegisteredApparent reissuance of previously removed resourceStrong inference
Statistics
157.20.42.0/23 available on 2024-02-16, allocated on 2024-02-17
Inventory
Likely issued from APNIC-controlled inventory
No transfer record matches. APNIC's statistics show it available on 2024-02-16 and allocated (dated 2024-02-16) on 2024-02-17. The tracker saw this range released from hold on 2020-07-10 (157.20.0.0/16), 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: 157.20.42.0/23 available on 2024-02-16, allocated on 2024-02-17source · retrieved
BeforeAPNIC delegated statistics 2024-02-16, before the change: availablesource · retrieved
AfterAPNIC delegated statistics 2024-02-17, after the change: allocated (dated 2024-02-16)source · retrieved
Classification history for this change (4 versions)