Possible reissue candidate; not confirmed available.
Timeline (9)
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.
2024-10-06RIPE NCCReleasedReleased from hold (the RIPE NCC lists it as 'available')Strong inference
Statistics
AS51563 reserved on 2024-10-05, available on 2024-10-06
Inventory
The RIPE NCC's statistics now list it as 'available'; reissue not confirmed
The RIPE NCC's statistics show it reserved on 2024-10-05 and available on 2024-10-06. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2024-04-09, 180 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: AS51563 reserved on 2024-10-05, available on 2024-10-06source · retrieved
BeforeRIPE NCC delegated statistics 2024-10-05 (produced 2024-10-05T21:59:59+00:00), before the change: reservedsource · retrieved
AfterRIPE NCC delegated statistics 2024-10-06 (produced 2024-10-06T21:59:59+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
2024-04-09RIPE NCC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
AS51563 allocated on 2024-04-08, reserved on 2024-04-09
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2024-10-06. 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 2018-11-07) on 2024-04-08 and reserved on 2024-04-09. 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 2024-10-06. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: AS51563 allocated on 2024-04-08, reserved on 2024-04-09source · retrieved
BeforeRIPE NCC delegated statistics 2024-04-08 (produced 2024-04-08T21:59:59+00:00), before the change: allocated (dated 2018-11-07)source · retrieved
AfterRIPE NCC delegated statistics 2024-04-09 (produced 2024-04-09T21:59:59+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
2018-11-07RIPE NCC+ RegisteredApparent reissuance of previously removed resourceStrong inference
Statistics
AS51563 available on 2018-11-06, allocated on 2018-11-07
Inventory
Likely issued from RIPE NCC-controlled inventory
No transfer record matches. The RIPE NCC's statistics show it available on 2018-11-06 and allocated (dated 2018-11-07) on 2018-11-07. The tracker saw this range released from hold on 2018-11-05 (AS51563), 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: AS51563 available on 2018-11-06, allocated on 2018-11-07source · retrieved
BeforeRIPE NCC delegated statistics 2018-11-06 (produced 2018-11-06T22:59:59+00:00), before the change: availablesource · retrieved
AfterRIPE NCC delegated statistics 2018-11-07 (produced 2018-11-07T22:59:59+00:00), after the change: allocated (dated 2018-11-07)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2018-11-05RIPE NCCReleasedReleased from hold (the RIPE NCC lists it as 'available')Strong inference
Statistics
AS51563 reserved on 2018-11-04, available on 2018-11-05
Inventory
The RIPE NCC's statistics now list it as 'available'; reissue not confirmed
The RIPE NCC's statistics show it reserved on 2018-11-04 and available on 2018-11-05. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2018-05-09, 180 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: AS51563 reserved on 2018-11-04, available on 2018-11-05source · retrieved
BeforeRIPE NCC delegated statistics 2018-11-04 (produced 2018-11-04T22:59:59+00:00), before the change: reservedsource · retrieved
AfterRIPE NCC delegated statistics 2018-11-05 (produced 2018-11-05T22:59:59+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
2018-05-09RIPE NCC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
AS51563 allocated on 2018-05-08, reserved on 2018-05-09
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2018-11-05. 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 2016-11-10) on 2018-05-08 and reserved on 2018-05-09. 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 2018-11-05. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: AS51563 allocated on 2018-05-08, reserved on 2018-05-09source · retrieved
BeforeRIPE NCC delegated statistics 2018-05-08 (produced 2018-05-08T21:59:59+00:00), before the change: allocated (dated 2016-11-10)source · retrieved
AfterRIPE NCC delegated statistics 2018-05-09 (produced 2018-05-09T21:59:59+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
2016-11-10RIPE NCC+ RegisteredApparent reissuance of previously removed resourceObserved only
Statistics
AS51563 available on 2016-11-09, allocated on 2016-11-10
Inventory
Likely issued from RIPE NCC-controlled inventory
No transfer record matches. The RIPE NCC's statistics show it available on 2016-11-09 and allocated (dated 2016-11-10) on 2016-11-10. The tracker saw this range released from hold on 2016-11-09 (AS51563), so it appears to have been issued again from the RIPE NCC's pool. Another change to this range was reported the day before or after (2016-11-09: Released AS51563), so the before-and-after statistics may include it.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: AS51563 available on 2016-11-09, allocated on 2016-11-10source · retrieved
BeforeRIPE NCC delegated statistics 2016-11-09 (produced 2016-11-09T22:59:59+00:00), before the change: availablesource · retrieved
AfterRIPE NCC delegated statistics 2016-11-10 (produced 2016-11-10T22:59:59+00:00), after the change: allocated (dated 2016-11-10)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, observed only (classifier 1.3.0)
: Apparent reissuance of previously removed resource, observed only (classifier 1.3.1)
: Apparent reissuance of previously removed resource, observed only (classifier 1.3.2)
: Apparent reissuance of previously removed resource, observed only (classifier 1.4.0) current
2016-11-09RIPE NCCReleasedReleased from hold (the RIPE NCC lists it as 'available')Observed only
Statistics
AS51563 reserved on 2016-11-08, available on 2016-11-09
Inventory
The RIPE NCC's statistics now list it as 'available'; reissue not confirmed
The RIPE NCC's statistics show it reserved on 2016-11-08 and available on 2016-11-09. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2015-09-21, 415 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 (2016-11-10: Added AS51563), so the before-and-after statistics may include it.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: AS51563 reserved on 2016-11-08, available on 2016-11-09source · retrieved
BeforeRIPE NCC delegated statistics 2016-11-08 (produced 2016-11-08T22:59:59+00:00), before the change: reservedsource · retrieved
AfterRIPE NCC delegated statistics 2016-11-09 (produced 2016-11-09T22:59:59+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
2015-09-21RIPE NCC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
AS51563 allocated on 2015-09-20, reserved on 2015-09-21
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2016-03-19. 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 2010-09-29) on 2015-09-20 and reserved on 2015-09-21. 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 2016-03-19. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: AS51563 allocated on 2015-09-20, reserved on 2015-09-21source · retrieved
BeforeRIPE NCC delegated statistics 2015-09-20 (produced 2015-09-20T21:59:59+00:00), before the change: allocated (dated 2010-09-29)source · retrieved
AfterRIPE NCC delegated statistics 2015-09-21 (produced 2015-09-21T21:59:59+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
2010-09-30RIPE NCC+ RegisteredApparent new issuanceStrong inference
Statistics
AS51563 available on 2010-09-29, allocated on 2010-09-30
Inventory
Likely issued from RIPE NCC-controlled inventory
No transfer record matches. The RIPE NCC's statistics show it available on 2010-09-29 and allocated (dated 2010-09-29) on 2010-09-30. It moved from the RIPE NCC's unissued pool to an active registration dated around that day, so it appears to be newly issued by the RIPE NCC.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: AS51563 available on 2010-09-29, allocated on 2010-09-30source · retrieved
BeforeRIPE NCC delegated statistics 2010-09-29, before the change: availablesource · retrieved
AfterRIPE NCC delegated statistics 2010-09-30, after the change: allocated (dated 2010-09-29)source · retrieved
Classification history for this change (4 versions)
: Apparent new issuance, strong inference (classifier 1.3.0)
: Apparent new issuance, strong inference (classifier 1.3.1)
: Apparent new issuance, strong inference (classifier 1.3.2)
: Apparent new issuance, 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.