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.
2016-07-11APNIC+ RegisteredApparent reissuance of previously removed resourceStrong inference
Statistics
43.225.156.0/22 available on 2016-07-11, allocated on 2016-07-12
Inventory
Likely issued from APNIC-controlled inventory
No transfer record matches. APNIC's statistics show it available on 2016-07-11 and allocated (dated 2016-07-11) on 2016-07-12. The tracker saw this range released from hold on 2016-07-06 (43.225.156.0/22), 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: 43.225.156.0/22 available on 2016-07-11, allocated on 2016-07-12source · retrieved
BeforeAPNIC delegated statistics 2016-07-11, before the change: availablesource · retrieved
AfterAPNIC delegated statistics 2016-07-12, after the change: allocated (dated 2016-07-11)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2016-07-06APNICReleasedReleased from hold (APNIC lists it as 'available')Strong inference
Statistics
43.225.156.0/22 reserved on 2016-07-06, available on 2016-07-07
Inventory
APNIC's statistics now list it as 'available'; reissue not confirmed
APNIC's statistics show it reserved on 2016-07-06 and available on 2016-07-07. APNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2015-07-01, 371 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: 43.225.156.0/22 reserved on 2016-07-06, available on 2016-07-07source · retrieved
BeforeAPNIC delegated statistics 2016-07-06, before the change: reservedsource · retrieved
AfterAPNIC delegated statistics 2016-07-07, 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
2015-07-01APNIC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
43.225.156.0/22 allocated on 2015-07-01, reserved on 2015-07-02
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2016-07-01. 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 2014-12-05) on 2015-07-01 and reserved on 2015-07-02. 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 2016-07-01. 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: 43.225.156.0/22 allocated on 2015-07-01, reserved on 2015-07-02source · retrieved
BeforeAPNIC delegated statistics 2015-07-01, before the change: allocated (dated 2014-12-05)source · retrieved
AfterAPNIC delegated statistics 2015-07-02, 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
2014-12-05APNIC+ RegisteredApparent new issuanceStrong inference
Statistics
43.225.156.0/22 available on 2014-12-05, allocated on 2014-12-06
Inventory
Likely issued from APNIC-controlled inventory
No transfer record matches. APNIC's statistics show it available on 2014-12-05 and allocated (dated 2014-12-05) on 2014-12-06. It moved from APNIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by APNIC.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing APNIC's daily statistics: 43.225.156.0/22 available on 2014-12-05, allocated on 2014-12-06source · retrieved
BeforeAPNIC delegated statistics 2014-12-05, before the change: availablesource · retrieved
AfterAPNIC delegated statistics 2014-12-06, after the change: allocated (dated 2014-12-05)source · retrieved
Classification history for this change (4 versions)
: Apparent new issuance, strong inference (classifier 1.3.0)
: Apparent new issuance, strong inference (classifier 1.3.1)
: Apparent new issuance, strong inference (classifier 1.3.2)
: Apparent new issuance, 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.