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.
2019-01-14ARIN+ AddApparent reissuance of previously removed resourceStrong inference
ARIN-Issued
Add AS16400
Inventory
Likely issued from ARIN-controlled inventory
No transfer record matches. ARIN's statistics show it available on 2019-01-13 and assigned (dated 2019-01-14) on 2019-01-15. The tracker saw this range released from hold on 2019-01-11 (AS16400), so it appears to have been issued again from ARIN's pool.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2019-01-14: "Add AS16400"source · retrieved
BeforeARIN delegated statistics 2019-01-13 (produced 2019-01-13T06:00:12+00:00), before the report: availablesource · retrieved
AfterARIN delegated statistics 2019-01-15 (produced 2019-01-15T06:00:11+00:00), after the report: assigned (dated 2019-01-14)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2019-01-11ARIN− RemoveReleased from hold (ARIN lists it as 'available')Strong inference
ARIN-Issued
Remove AS16400
Inventory
ARIN's statistics now list it as 'available'; reissue not confirmed
ARIN's statistics show it reserved on 2019-01-10 and available on 2019-01-12. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2018-11-06, 66 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2019-01-11: "Remove AS16400"source · retrieved
BeforeARIN delegated statistics 2019-01-10 (produced 2019-01-10T06:00:12+00:00), before the report: reservedsource · retrieved
AfterARIN delegated statistics 2019-01-12 (produced 2019-01-12T06:00:09+00:00), after the report: availablesource · retrieved
Classification history for this change (4 versions)
: Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.0)
: Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.1)
: Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.2)
: Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.4.0) current
2018-11-06ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2019-05-06. Possible reissue candidate after this date; not confirmed available.
Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 2012-06-13) on 2018-11-05 and reserved on 2018-11-07. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the estimated hold end is 2019-05-06. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS16400 assigned on 2018-11-06, reserved on 2018-11-07source · retrieved
BeforeARIN delegated statistics 2018-11-05 (produced 2018-11-05T06:00:11+00:00), before the report: assigned (dated 2012-06-13)source · retrieved
AfterARIN delegated statistics 2018-11-07 (produced 2018-11-07T06:00:11+00:00), after the report: 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
2011-12-08ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2012-06-08. Possible reissue candidate after this date; not confirmed available.
Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2000-04-25) on 2011-12-07 and not issued on 2011-12-09. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the estimated hold end is 2012-06-08. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS16400 allocated on 2011-12-08, not listed on 2011-12-09source · retrieved
BeforeARIN delegated statistics 2011-12-07, before the report: allocated (dated 2000-04-25)source · retrieved
AfterARIN delegated statistics 2011-12-09, after the report: not issuedsource · 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
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.