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.
Transfer: China Internet Network Information Center/QC-LINK (APNIC) to China Internet Network Information Center/DC-LINK (APNIC)
From
China Internet Network Information Center/QC-LINK APNIC
To
China Internet Network Information Center/DC-LINK APNIC
Inventory
No effect on APNIC applicant inventory
APNIC's transfer log records a transfer from China Internet Network Information Center/QC-LINK (APNIC) to China Internet Network Information Center/DC-LINK (APNIC) on 2017-06-19 00:00 UTC. The registration changed hands; it is not a new allocation from APNIC.
Evidence (3) · classifier 1.4.0,
Transfer logTransfer log: RESOURCE_TRANSFER on 2017-06-19 00:00 UTC, China Internet Network Information Center/QC-LINK (APNIC) to China Internet Network Information Center/DC-LINK (APNIC); resources moved: 203.89.144.0/24source · retrieved
BeforeAPNIC delegated statistics 2017-06-19, before the change: allocated (dated 2016-06-09)source · retrieved
AfterAPNIC delegated statistics 2017-06-20, after the change: allocated (dated 2016-06-09)source · retrieved
Classification history for this change (4 versions)
: Intra-APNIC transfer, confirmed (classifier 1.4.0) current
2016-06-09APNIC+ RegisteredApparent reissuance of previously removed resourceStrong inference
Statistics
203.89.144.0/24 available on 2016-06-09, allocated on 2016-06-10
Inventory
Likely issued from APNIC-controlled inventory
No transfer record matches. APNIC's statistics show it available on 2016-06-09 and allocated (dated 2016-06-09) on 2016-06-10. The tracker saw this range released from hold on 2015-10-28 (203.89.144.0/24), 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: 203.89.144.0/24 available on 2016-06-09, allocated on 2016-06-10source · retrieved
BeforeAPNIC delegated statistics 2016-06-09, before the change: availablesource · retrieved
AfterAPNIC delegated statistics 2016-06-10, after the change: allocated (dated 2016-06-09)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2015-10-28APNICReleasedReleased from hold (APNIC lists it as 'available')Strong inference
Statistics
203.89.144.0/24 reserved on 2015-10-28, available on 2015-10-29
Inventory
APNIC's statistics now list it as 'available'; reissue not confirmed
APNIC's statistics show it reserved on 2015-10-28 and available on 2015-10-29. APNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2014-09-02, 421 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: 203.89.144.0/24 reserved on 2015-10-28, available on 2015-10-29source · retrieved
BeforeAPNIC delegated statistics 2015-10-28, before the change: reservedsource · retrieved
AfterAPNIC delegated statistics 2015-10-29, 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
2014-09-02APNIC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
203.89.144.0/24 assigned on 2014-09-02, reserved on 2014-09-03
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2015-09-02. 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 2009-04-17) on 2014-09-02 and reserved on 2014-09-03. 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 2015-09-02. 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: 203.89.144.0/24 assigned on 2014-09-02, reserved on 2014-09-03source · retrieved
BeforeAPNIC delegated statistics 2014-09-02, before the change: assigned (dated 2009-04-17)source · retrieved
AfterAPNIC delegated statistics 2014-09-03, 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
2009-04-17APNIC+ RegisteredUnresolved changeObserved only
Statistics
203.89.144.0/24 not listed on 2009-04-17, assigned on 2009-04-18
Inventory
Inventory effect unknown
No transfer record matches. APNIC's statistics show it not listed on 2009-04-17 and assigned (dated 2009-04-17) on 2009-04-18. It wasn't in APNIC's statistics before, so it wasn't APNIC's unissued inventory; it may have come from another registry in a transfer not yet in the log.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing APNIC's daily statistics: 203.89.144.0/24 not listed on 2009-04-17, assigned on 2009-04-18source · retrieved
BeforeAPNIC delegated statistics 2009-04-17, before the change: not listedsource · retrieved
AfterAPNIC delegated statistics 2009-04-18, after the change: assigned (dated 2009-04-17)source · retrieved
Classification history for this change (4 versions)
: Unresolved change, observed only (classifier 1.3.0)
: Unresolved change, observed only (classifier 1.3.1)
: Unresolved change, observed only (classifier 1.3.2)
: Unresolved change, observed only (classifier 1.4.0) current
Transfer records (1)
Date (UTC)
Log
Type
Range moved
From
To
APNIC
Resource transfer
203.89.144.0/24
China Internet Network Information Center/QC-LINK APNIC
China Internet Network Information Center/DC-LINK APNIC
Every record in the ARIN, RIPE NCC, APNIC, LACNIC and AFRINIC transfer logs that moved any part of this IPv4 range (ARIN's from 2009, the RIPE NCC's from 2012, APNIC's from 2010, LACNIC's from 2016, AFRINIC's from 2018). A transfer between two registries is in both logs.
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.