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.
2016-07-21APNIC+ RegisteredApparent reissuance of previously removed resourceStrong inference
Statistics
AS9507 available on 2016-07-21, allocated on 2016-07-22
Inventory
Likely issued from APNIC-controlled inventory
No transfer record matches. APNIC's statistics show it available on 2016-07-21 and allocated (dated 2016-07-21) on 2016-07-22. The tracker saw this range removed from registration on 2010-09-03 (AS9507), so it appears to have been issued again from APNIC's pool.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing APNIC's daily statistics: AS9507 available on 2016-07-21, allocated on 2016-07-22source · retrieved
BeforeAPNIC delegated statistics 2016-07-21, before the change: availablesource · retrieved
AfterAPNIC delegated statistics 2016-07-22, after the change: allocated (dated 2016-07-21)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2010-09-03APNIC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Observed only
Statistics
AS9507 allocated on 2010-09-03, not listed on 2010-09-04
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 2009-07-08) on 2010-09-03 and not listed on 2010-09-04. 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: AS9507 allocated on 2010-09-03, not listed on 2010-09-04source · retrieved
BeforeAPNIC delegated statistics 2010-09-03, before the change: allocated (dated 2009-07-08)source · retrieved
AfterAPNIC delegated statistics 2010-09-04, 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
2009-07-08APNIC+ RegisteredUnresolved changeObserved only
Statistics
AS9507 not listed on 2009-07-08, allocated on 2009-07-09
Inventory
Inventory effect unknown
No transfer record matches. APNIC's statistics show it not listed on 2009-07-08 and allocated (dated 2009-07-08) on 2009-07-09. It wasn't in APNIC's statistics before, so it wasn't APNIC's unissued inventory; it may have come from another registry in a transfer not yet in the log.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing APNIC's daily statistics: AS9507 not listed on 2009-07-08, allocated on 2009-07-09source · retrieved
BeforeAPNIC delegated statistics 2009-07-08, before the change: not listedsource · retrieved
AfterAPNIC delegated statistics 2009-07-09, after the change: allocated (dated 2009-07-08)source · retrieved
Classification history for this change (4 versions)
: Unresolved change, observed only (classifier 1.3.0)
: Unresolved change, observed only (classifier 1.3.1)
: Unresolved change, observed only (classifier 1.3.2)
: Unresolved change, observed only (classifier 1.4.0) current
2008-04-08APNIC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Observed only
Statistics
AS9507 allocated on 2008-04-08, not listed on 2008-04-09
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 1999-03-31) on 2008-04-08 and not listed on 2008-04-09. 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: AS9507 allocated on 2008-04-08, not listed on 2008-04-09source · retrieved
BeforeAPNIC delegated statistics 2008-04-08, before the change: allocated (dated 1999-03-31)source · retrieved
AfterAPNIC delegated statistics 2008-04-09, 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
Transfer records
No transfer log has a transfer of any part of this ASN.
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.