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.
2016-03-08LACNIC+ RegisteredApparent reissuance of previously removed resourceStrong inference
Statistics
200.12.131.0/24 reserved on 2016-03-07, assigned on 2016-03-08
Inventory
Likely issued from LACNIC-controlled inventory
No transfer record matches. LACNIC's statistics show it reserved on 2016-03-07 and assigned (dated 2016-03-08) on 2016-03-08. The tracker saw this range released from hold on 2016-02-25 (200.12.131.0/24), so it appears to have been issued again from LACNIC's pool.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing LACNIC's daily statistics: 200.12.131.0/24 reserved on 2016-03-07, assigned on 2016-03-08source · retrieved
BeforeLACNIC delegated statistics 2016-03-07, before the change: reservedsource · retrieved
AfterLACNIC delegated statistics 2016-03-08, after the change: assigned (dated 2016-03-08)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2016-02-25LACNICReleasedReleased from hold (LACNIC lists it as 'available')Strong inference
Statistics
200.12.131.0/24 reserved on 2016-02-24, available on 2016-02-25
Inventory
LACNIC's statistics now list it as 'available'; reissue not confirmed
LACNIC's statistics show it reserved on 2016-02-24 and available on 2016-02-25. LACNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2013-03-25, 1067 days earlier. That is LACNIC's own label: whether and when it is reissued is not confirmed.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing LACNIC's daily statistics: 200.12.131.0/24 reserved on 2016-02-24, available on 2016-02-25source · retrieved
BeforeLACNIC delegated statistics 2016-02-24, before the change: reservedsource · retrieved
AfterLACNIC delegated statistics 2016-02-25, after the change: availablesource · retrieved
Classification history for this change (4 versions)
: Released from hold (LACNIC lists it as 'available'), strong inference (classifier 1.3.0)
: Released from hold (LACNIC lists it as 'available'), strong inference (classifier 1.3.1)
: Released from hold (LACNIC lists it as 'available'), strong inference (classifier 1.3.2)
: Released from hold (LACNIC lists it as 'available'), strong inference (classifier 1.4.0) current
2013-03-25LACNIC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
200.12.131.0/24 assigned on 2013-03-24, available on 2013-03-25
Inventory
Possible future reissue candidate after hold
Removed from active registration. The tracker found it by comparing LACNIC's daily statistics. LACNIC's statistics show it assigned (dated 1994-07-26) on 2013-03-24 and available on 2013-03-25. Public sources do not distinguish a voluntary return, revocation, or reclamation. LACNIC's current hold for IPv4 space applies to removals from 2020-03-01 on, and this one came earlier, so the tracker gives no estimate. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing LACNIC's daily statistics: 200.12.131.0/24 assigned on 2013-03-24, available on 2013-03-25source · retrieved
BeforeLACNIC delegated statistics 2013-03-24, before the change: assigned (dated 1994-07-26)source · retrieved
AfterLACNIC delegated statistics 2013-03-25, after the change: availablesource · 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.