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.
2015-10-22LACNIC+ RegisteredApparent new issuanceObserved only
Statistics
143.0.88.0/22 available on 2015-10-21, allocated on 2015-10-22
Inventory
Likely issued from LACNIC-controlled inventory
No transfer record matches. LACNIC's statistics show it available on 2015-10-21 and allocated (dated 2015-10-22) on 2015-10-22. It moved from LACNIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by LACNIC. Another change to this range was reported the day before or after (2015-10-21: Released 143.0.88.0/22), so the before-and-after statistics may include it.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing LACNIC's daily statistics: 143.0.88.0/22 available on 2015-10-21, allocated on 2015-10-22source · retrieved
BeforeLACNIC delegated statistics 2015-10-21, before the change: availablesource · retrieved
AfterLACNIC delegated statistics 2015-10-22, after the change: allocated (dated 2015-10-22)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, observed only (classifier 1.3.0)
: Apparent reissuance of previously removed resource, observed only (classifier 1.3.1)
: Apparent reissuance of previously removed resource, observed only (classifier 1.3.2)
: Apparent new issuance, observed only (classifier 1.4.0) current
2015-10-21LACNICReleasedReleased from hold (LACNIC lists it as 'available')Observed only
Statistics
143.0.88.0/22 reserved on 2015-10-20, available on 2015-10-21
Inventory
LACNIC's statistics now list it as 'available'; reissue not confirmed
LACNIC's statistics show it reserved on 2015-10-20 and available on 2015-10-21. LACNIC moved it from its reserved (held) records to the status it calls 'available'. That is LACNIC's own label: whether and when it is reissued is not confirmed. Another change to this range was reported the day before or after (2015-10-22: Added 143.0.88.0/22), so the before-and-after statistics may include it.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing LACNIC's daily statistics: 143.0.88.0/22 reserved on 2015-10-20, available on 2015-10-21source · retrieved
BeforeLACNIC delegated statistics 2015-10-20, before the change: reservedsource · retrieved
AfterLACNIC delegated statistics 2015-10-21, after the change: availablesource · retrieved
Classification history for this change (4 versions)
: Released from hold (LACNIC lists it as 'available'), observed only (classifier 1.3.0)
: Released from hold (LACNIC lists it as 'available'), observed only (classifier 1.3.1)
: Released from hold (LACNIC lists it as 'available'), observed only (classifier 1.3.2)
: Released from hold (LACNIC lists it as 'available'), observed only (classifier 1.4.0) current
2015-10-05LACNICReleasedReleased from hold (LACNIC lists it as 'available')Strong inference
Statistics
143.0.88.0/22 reserved on 2015-10-04, available on 2015-10-05
Inventory
LACNIC's statistics now list it as 'available'; reissue not confirmed
LACNIC's statistics show it reserved on 2015-10-04 and available on 2015-10-05. LACNIC moved it from its reserved (held) records to the status it calls 'available'. 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: 143.0.88.0/22 reserved on 2015-10-04, available on 2015-10-05source · retrieved
BeforeLACNIC delegated statistics 2015-10-04, before the change: reservedsource · retrieved
AfterLACNIC delegated statistics 2015-10-05, 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
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.