Not estimated: the RIPE NCC's current hold applies to removals from 2014-03-26 on, and this one came earlier
Now
Possible reissue candidate; not confirmed available.
Timeline (1)
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.
2011-06-01RIPE NCC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
2001:4148::/32 allocated on 2011-05-31, reserved on 2011-06-01
Inventory
Possible future reissue candidate after hold
Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it allocated (dated 2004-09-29) on 2011-05-31 and reserved on 2011-06-01. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC's current hold for IPv6 space applies to removals from 2014-03-26 on, and this one came earlier, so the tracker gives no estimate. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: 2001:4148::/32 allocated on 2011-05-31, reserved on 2011-06-01source · retrieved
BeforeRIPE NCC delegated statistics 2011-05-31, before the change: allocated (dated 2004-09-29)source · retrieved
AfterRIPE NCC delegated statistics 2011-06-01 (produced 2011-06-01T21:59:59+00:00), 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
No transfer log has a transfer of any part of this IPv6 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.