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.
2023-09-26LACNIC+ RegisteredApparent reissuance of previously removed resourceStrong inference
Statistics
143.208.88.0/22 reserved on 2023-09-25, allocated on 2023-09-26
Inventory
Likely issued from LACNIC-controlled inventory
No transfer record matches. LACNIC's statistics show it reserved on 2023-09-25 and allocated (dated 2023-09-26) on 2023-09-26. The tracker saw this range removed from registration on 2023-03-23 (143.208.88.0/22), 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: 143.208.88.0/22 reserved on 2023-09-25, allocated on 2023-09-26source · retrieved
BeforeLACNIC delegated statistics 2023-09-25, before the change: reservedsource · retrieved
AfterLACNIC delegated statistics 2023-09-26, after the change: allocated (dated 2023-09-26)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2023-03-23LACNIC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
143.208.88.0/22 allocated on 2023-03-22, reserved on 2023-03-23
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2023-09-23. Possible reissue candidate after this date; not confirmed available.
Removed from active registration. The tracker found it by comparing LACNIC's daily statistics. LACNIC's statistics show it allocated (dated 2015-11-11) on 2023-03-22 and reserved on 2023-03-23. Public sources do not distinguish a voluntary return, revocation, or reclamation. LACNIC holds returned, revoked and reclaimed IPv4 space for 6 calendar months before reissuing it, so the estimated hold end is 2023-09-23. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing LACNIC's daily statistics: 143.208.88.0/22 allocated on 2023-03-22, reserved on 2023-03-23source · retrieved
BeforeLACNIC delegated statistics 2023-03-22, before the change: allocated (dated 2015-11-11)source · retrieved
AfterLACNIC delegated statistics 2023-03-23, 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
2015-11-11LACNIC+ RegisteredApparent new issuanceObserved only
Statistics
143.208.88.0/22 available on 2015-11-10, allocated on 2015-11-11
Inventory
Likely issued from LACNIC-controlled inventory
No transfer record matches. LACNIC's statistics show it available on 2015-11-10 and allocated (dated 2015-11-11) on 2015-11-11. 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 (2015-11-10: Released 143.208.88.0/22), so the before-and-after statistics may include it.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing LACNIC's daily statistics: 143.208.88.0/22 available on 2015-11-10, allocated on 2015-11-11source · retrieved
BeforeLACNIC delegated statistics 2015-11-10, before the change: availablesource · retrieved
AfterLACNIC delegated statistics 2015-11-11, after the change: allocated (dated 2015-11-11)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
2015-11-10LACNICReleasedReleased from hold (LACNIC lists it as 'available')Observed only
Statistics
143.208.88.0/22 reserved on 2015-11-09, available on 2015-11-10
Inventory
LACNIC's statistics now list it as 'available'; reissue not confirmed
LACNIC's statistics show it reserved on 2015-11-09 and available on 2015-11-10. 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 (2015-11-11: Added 143.208.88.0/22), so the before-and-after statistics may include it.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing LACNIC's daily statistics: 143.208.88.0/22 reserved on 2015-11-09, available on 2015-11-10source · retrieved
BeforeLACNIC delegated statistics 2015-11-09, before the change: reservedsource · retrieved
AfterLACNIC delegated statistics 2015-11-10, 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
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.