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.
2020-06-30LACNIC+ RegisteredApparent reissuance of previously removed resourceStrong inference
Statistics
138.36.12.0/22 reserved on 2020-06-29, allocated on 2020-06-30
Inventory
Likely issued from LACNIC-controlled inventory
No transfer record matches. LACNIC's statistics show it reserved on 2020-06-29 and allocated (dated 2020-06-30) on 2020-06-30. The tracker saw this range released from hold on 2020-03-17 (138.36.8.0/21), 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: 138.36.12.0/22 reserved on 2020-06-29, allocated on 2020-06-30source · retrieved
BeforeLACNIC delegated statistics 2020-06-29, before the change: reservedsource · retrieved
AfterLACNIC delegated statistics 2020-06-30, after the change: allocated (dated 2020-06-30)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2017-07-27LACNIC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
138.36.12.0/22 allocated on 2017-07-26, reserved on 2017-07-27
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 allocated (dated 2015-01-13) on 2017-07-26 and reserved on 2017-07-27. 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: 138.36.12.0/22 allocated on 2017-07-26, reserved on 2017-07-27source · retrieved
BeforeLACNIC delegated statistics 2017-07-26, before the change: allocated (dated 2015-01-13)source · retrieved
AfterLACNIC delegated statistics 2017-07-27, 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
2015-01-13LACNIC+ RegisteredApparent new issuanceStrong inference
Statistics
138.36.12.0/22 available on 2015-01-12, allocated on 2015-01-13
Inventory
Likely issued from LACNIC-controlled inventory
No transfer record matches. LACNIC's statistics show it available on 2015-01-12 and allocated (dated 2015-01-13) on 2015-01-13. It moved from LACNIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by LACNIC.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing LACNIC's daily statistics: 138.36.12.0/22 available on 2015-01-12, allocated on 2015-01-13source · retrieved
BeforeLACNIC delegated statistics 2015-01-12, before the change: availablesource · retrieved
AfterLACNIC delegated statistics 2015-01-13, after the change: allocated (dated 2015-01-13)source · retrieved
Classification history for this change (4 versions)
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.