The RIPE NCC's statistics now list it as 'available'; reissue not confirmed
Timeline (2)
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.
2012-04-30RIPE NCCReleasedReleased from hold (the RIPE NCC lists it as 'available')Observed only
Statistics
193.33.166.0/23 reserved on 2012-04-29, available on 2012-04-30
Inventory
The RIPE NCC's statistics now list it as 'available'; reissue not confirmed
The RIPE NCC's statistics show it reserved on 2012-04-29 and available on 2012-04-30. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2012-01-31, 90 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed. Another change to this range was reported the day before or after (2012-05-01: Added 193.33.166.0/24; 2012-05-01: Added 193.33.167.0/24), so the before-and-after statistics may include it.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: 193.33.166.0/23 reserved on 2012-04-29, available on 2012-04-30source · retrieved
BeforeRIPE NCC delegated statistics 2012-04-29 (produced 2012-04-29T21:59:59+00:00), before the change: reservedsource · retrieved
AfterRIPE NCC delegated statistics 2012-04-30 (produced 2012-04-30T21:59:59+00:00), after the change: availablesource · retrieved
Classification history for this change (4 versions)
: Released from hold (the RIPE NCC lists it as 'available'), observed only (classifier 1.3.0)
: Released from hold (the RIPE NCC lists it as 'available'), observed only (classifier 1.3.1)
: Released from hold (the RIPE NCC lists it as 'available'), observed only (classifier 1.3.2)
: Released from hold (the RIPE NCC lists it as 'available'), observed only (classifier 1.4.0) current
2012-01-31RIPE NCC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
193.33.166.0/23 assigned on 2012-01-30, reserved on 2012-01-31
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 assigned (dated 2007-04-11) on 2012-01-30 and reserved on 2012-01-31. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC's current hold for IPv4 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: 193.33.166.0/23 assigned on 2012-01-30, reserved on 2012-01-31source · retrieved
BeforeRIPE NCC delegated statistics 2012-01-30 (produced 2012-01-30T22:59:59+00:00), before the change: assigned (dated 2007-04-11)source · retrieved
AfterRIPE NCC delegated statistics 2012-01-31 (produced 2012-01-31T22:59:59+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 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.