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.
2022-12-20RIPE NCC+ RegisteredUnresolved changeObserved only
Statistics
AS47756 reserved on 2022-12-19, allocated on 2022-12-20
Inventory
Inventory effect unknown
No transfer record matches. The RIPE NCC's statistics show it reserved on 2022-12-19 and allocated (dated 2016-03-17) on 2022-12-20. 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 (2022-12-19: Removed AS47756), so the before-and-after statistics may include it.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: AS47756 reserved on 2022-12-19, allocated on 2022-12-20source · retrieved
BeforeRIPE NCC delegated statistics 2022-12-19 (produced 2022-12-19T22:59:59+00:00), before the change: reservedsource · retrieved
AfterRIPE NCC delegated statistics 2022-12-20 (produced 2022-12-20T22:59:59+00:00), after the change: allocated (dated 2016-03-17)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
2022-12-19RIPE NCC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Observed only
Statistics
AS47756 allocated on 2022-12-18, reserved on 2022-12-19
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2023-06-17. 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 allocated (dated 2016-03-17) on 2022-12-18 and reserved on 2022-12-19. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed ASNs for 180 days (six months), or longer while still routed, before reissuing them, so the estimated hold end is 2023-06-17. This does not confirm availability. Another change to this range was reported the day before or after (2022-12-20: Added AS47756), so the before-and-after statistics may include it.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: AS47756 allocated on 2022-12-18, reserved on 2022-12-19source · retrieved
BeforeRIPE NCC delegated statistics 2022-12-18 (produced 2022-12-18T22:59:59+00:00), before the change: allocated (dated 2016-03-17)source · retrieved
AfterRIPE NCC delegated statistics 2022-12-19 (produced 2022-12-19T22:59:59+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
2016-03-17RIPE NCC+ RegisteredApparent reissuance of previously removed resourceStrong inference
Statistics
AS47756 available on 2016-03-16, allocated on 2016-03-17
Inventory
Likely issued from RIPE NCC-controlled inventory
No transfer record matches. The RIPE NCC's statistics show it available on 2016-03-16 and allocated (dated 2016-03-17) on 2016-03-17. The tracker saw this range released from hold on 2015-11-25 (AS47756), 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: AS47756 available on 2016-03-16, allocated on 2016-03-17source · retrieved
BeforeRIPE NCC delegated statistics 2016-03-16 (produced 2016-03-16T22:59:59+00:00), before the change: availablesource · retrieved
AfterRIPE NCC delegated statistics 2016-03-17 (produced 2016-03-17T22:59:59+00:00), after the change: allocated (dated 2016-03-17)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2015-11-25RIPE NCCReleasedReleased from hold (the RIPE NCC lists it as 'available')Strong inference
Statistics
AS47756 reserved on 2015-11-24, available on 2015-11-25
Inventory
The RIPE NCC's statistics now list it as 'available'; reissue not confirmed
The RIPE NCC's statistics show it reserved on 2015-11-24 and available on 2015-11-25. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2013-01-14, 1045 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: AS47756 reserved on 2015-11-24, available on 2015-11-25source · retrieved
BeforeRIPE NCC delegated statistics 2015-11-24 (produced 2015-11-24T22:59:59+00:00), before the change: reservedsource · retrieved
AfterRIPE NCC delegated statistics 2015-11-25 (produced 2015-11-25T22:59:59+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
2013-01-14RIPE NCC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
AS47756 allocated on 2013-01-13, reserved on 2013-01-14
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 2008-08-14) on 2013-01-13 and reserved on 2013-01-14. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC's current hold for ASNs 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: AS47756 allocated on 2013-01-13, reserved on 2013-01-14source · retrieved
BeforeRIPE NCC delegated statistics 2013-01-13 (produced 2013-01-13T22:59:59+00:00), before the change: allocated (dated 2008-08-14)source · retrieved
AfterRIPE NCC delegated statistics 2013-01-14 (produced 2013-01-14T22:59:59+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
Transfer records
No transfer log has a transfer of any part of this ASN.
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.