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.
2009-11-04APNIC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Observed only
Statistics
203.82.160.0/20 allocated on 2009-11-04, not listed on 2009-11-05
Inventory
Possible future reissue candidate after hold
Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it allocated (dated 2003-03-19) on 2009-11-04 and not listed on 2009-11-05. Being gone from APNIC's statistics entirely can also mean it moved to another registry. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no hold period, and its statistics show a steady one (a year) only for removals from 2014-07-01 on; this one came earlier, so the tracker gives no estimate. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing APNIC's daily statistics: 203.82.160.0/20 allocated on 2009-11-04, not listed on 2009-11-05source · retrieved
BeforeAPNIC delegated statistics 2009-11-04, before the change: allocated (dated 2003-03-19)source · retrieved
AfterAPNIC delegated statistics 2009-11-05, after the change: not listedsource · retrieved
Classification history for this change (4 versions)
: Removed (return, revocation or reclamation not publicly distinguishable), observed only (classifier 1.3.0)
: Removed (return, revocation or reclamation not publicly distinguishable), observed only (classifier 1.3.1)
: Removed (return, revocation or reclamation not publicly distinguishable), observed only (classifier 1.3.2)
: Removed (return, revocation or reclamation not publicly distinguishable), 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.