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.
2021-04-26RIPE NCC+ RegisteredApparent reissuance of previously removed resourceStrong inference
Statistics
193.56.133.0/24 available on 2021-04-25, allocated on 2021-04-26
Inventory
Likely issued from RIPE NCC-controlled inventory
No transfer record matches. The RIPE NCC's statistics show it available on 2021-04-25 and allocated (dated 2021-04-26) on 2021-04-26. The tracker saw this range released from hold on 2020-05-02 (193.56.132.0/22), so it appears to have been issued again from the RIPE NCC's pool.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: 193.56.133.0/24 available on 2021-04-25, allocated on 2021-04-26source · retrieved
BeforeRIPE NCC delegated statistics 2021-04-25 (produced 2021-04-25T21:59:00+00:00), before the change: availablesource · retrieved
AfterRIPE NCC delegated statistics 2021-04-26 (produced 2021-04-26T21:59:00+00:00), after the change: allocated (dated 2021-04-26)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2014-12-10RIPE NCC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
193.56.133.0/24 assigned on 2014-12-09, reserved on 2014-12-10
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2015-06-08. Possible reissue candidate after this date; not confirmed available.
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 1993-05-04) on 2014-12-09 and reserved on 2014-12-10. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the estimated hold end is 2015-06-08. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: 193.56.133.0/24 assigned on 2014-12-09, reserved on 2014-12-10source · retrieved
BeforeRIPE NCC delegated statistics 2014-12-09 (produced 2014-12-09T22:59:59+00:00), before the change: assigned (dated 1993-05-04)source · retrieved
AfterRIPE NCC delegated statistics 2014-12-10 (produced 2014-12-10T22:59:59+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.