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.
2019-10-08RIPE NCC+ RegisteredApparent reissuance of previously removed resourceStrong inference
Statistics
193.33.86.0/23 available on 2019-10-07, allocated on 2019-10-08
Inventory
Likely issued from RIPE NCC-controlled inventory
No transfer record matches. The RIPE NCC's statistics show it available on 2019-10-07 and allocated (dated 2019-10-08) on 2019-10-08. The tracker saw this range released from hold on 2015-01-13 (193.33.86.0/23), 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: 193.33.86.0/23 available on 2019-10-07, allocated on 2019-10-08source · retrieved
BeforeRIPE NCC delegated statistics 2019-10-07 (produced 2019-10-07T21:59:59+00:00), before the change: availablesource · retrieved
AfterRIPE NCC delegated statistics 2019-10-08 (produced 2019-10-08T21:59:59+00:00), after the change: allocated (dated 2019-10-08)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2015-01-13RIPE NCCReleasedReleased from hold (the RIPE NCC lists it as 'available')Strong inference
Statistics
193.33.86.0/23 reserved on 2015-01-12, available on 2015-01-13
Inventory
The RIPE NCC's statistics now list it as 'available'; reissue not confirmed
The RIPE NCC's statistics show it reserved on 2015-01-12 and available on 2015-01-13. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2014-01-13, 365 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: 193.33.86.0/23 reserved on 2015-01-12, available on 2015-01-13source · retrieved
BeforeRIPE NCC delegated statistics 2015-01-12 (produced 2015-01-12T22:59:59+00:00), before the change: reservedsource · retrieved
AfterRIPE NCC delegated statistics 2015-01-13 (produced 2015-01-13T22:59:59+00:00), after the change: availablesource · retrieved
Classification history for this change (4 versions)
: Released from hold (the RIPE NCC lists it as 'available'), strong inference (classifier 1.3.0)
: Released from hold (the RIPE NCC lists it as 'available'), strong inference (classifier 1.3.1)
: Released from hold (the RIPE NCC lists it as 'available'), strong inference (classifier 1.3.2)
: Released from hold (the RIPE NCC lists it as 'available'), strong inference (classifier 1.4.0) current
2014-01-13RIPE NCC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
193.33.86.0/23 assigned on 2014-01-12, reserved on 2014-01-13
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 2007-02-15) on 2014-01-12 and reserved on 2014-01-13. 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.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: 193.33.86.0/23 assigned on 2014-01-12, reserved on 2014-01-13source · retrieved
BeforeRIPE NCC delegated statistics 2014-01-12 (produced 2014-01-12T22:59:59+00:00), before the change: assigned (dated 2007-02-15)source · retrieved
AfterRIPE NCC delegated statistics 2014-01-13 (produced 2014-01-13T22:59:59+00:00), after the change: reservedsource · retrieved
Classification history for this change (4 versions)
: Removed (return, revocation or reclamation not publicly distinguishable), 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
Sold in pieces
1 piece of this block transferred since 2010-04-23, 50% of it so far.
Every record in the ARIN, RIPE NCC, APNIC, LACNIC and AFRINIC transfer logs that moved any part of this IPv4 range (ARIN's from 2009, the RIPE NCC's from 2012, APNIC's from 2010, LACNIC's from 2016, AFRINIC's from 2018). A transfer between two registries is in both logs.
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.