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.
2014-02-14RIPE NCC+ RegisteredUnresolved changeObserved only
Statistics
91.193.176.0/22 reserved on 2014-02-13, assigned on 2014-02-14
Inventory
Inventory effect unknown
No transfer record matches. The RIPE NCC's statistics show it reserved on 2014-02-13 and assigned (dated 2007-04-24) on 2014-02-14. The new registration isn't dated near that day, so the tracker can't tell whether this is a new issuance. Another change to this range was reported the day before or after (2014-02-13: Removed 91.193.176.0/22), so the before-and-after statistics may include it.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: 91.193.176.0/22 reserved on 2014-02-13, assigned on 2014-02-14source · retrieved
BeforeRIPE NCC delegated statistics 2014-02-13 (produced 2014-02-13T22:59:59+00:00), before the change: reservedsource · retrieved
AfterRIPE NCC delegated statistics 2014-02-14 (produced 2014-02-14T22:59:59+00:00), after the change: assigned (dated 2007-04-24)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
2014-02-13RIPE NCC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Observed only
Statistics
91.193.176.0/22 assigned on 2014-02-12, reserved on 2014-02-13
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 2007-04-24) on 2014-02-12 and reserved on 2014-02-13. 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. Another change to this range was reported the day before or after (2014-02-14: Added 91.193.176.0/22), so the before-and-after statistics may include it.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: 91.193.176.0/22 assigned on 2014-02-12, reserved on 2014-02-13source · retrieved
BeforeRIPE NCC delegated statistics 2014-02-12 (produced 2014-02-12T22:59:59+00:00), before the change: assigned (dated 2007-04-24)source · retrieved
AfterRIPE NCC delegated statistics 2014-02-13 (produced 2014-02-13T22:59:59+00:00), after the change: reservedsource · 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 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.