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.
Transfer: CoMaSys ApS (RIPE NCC) to CoMaSys ApS (RIPE NCC)
From
CoMaSys ApS RIPE NCC
To
CoMaSys ApS RIPE NCC
Inventory
No effect on RIPE NCC applicant inventory
The RIPE NCC's transfer log records a transfer from CoMaSys ApS (RIPE NCC) to CoMaSys ApS (RIPE NCC) on 2025-04-22 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC.
Evidence (3) · classifier 1.4.0,
Transfer logTransfer log: RESOURCE_TRANSFER on 2025-04-22 19:00 UTC, CoMaSys ApS (RIPE NCC) to CoMaSys ApS (RIPE NCC); resources moved: AS51377source · retrieved
BeforeRIPE NCC delegated statistics 2025-04-21 (produced 2025-04-21T21:59:59+00:00), before the change: allocated (dated 2017-08-03)source · retrieved
AfterRIPE NCC delegated statistics 2025-04-22 (produced 2025-04-22T21:59:59+00:00), after the change: allocated (dated 2017-08-03)source · retrieved
Classification history for this change (4 versions)
: Intra-RIPE NCC transfer, confirmed (classifier 1.4.0) current
2017-08-03RIPE NCC+ RegisteredApparent reissuance of previously removed resourceObserved only
Statistics
AS51377 available on 2017-08-02, allocated on 2017-08-03
Inventory
Likely issued from RIPE NCC-controlled inventory
No transfer record matches. The RIPE NCC's statistics show it available on 2017-08-02 and allocated (dated 2017-08-03) on 2017-08-03. The tracker saw this range released from hold on 2017-08-02 (AS51377), 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 (2017-08-02: Released AS51377), so the before-and-after statistics may include it.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: AS51377 available on 2017-08-02, allocated on 2017-08-03source · retrieved
BeforeRIPE NCC delegated statistics 2017-08-02 (produced 2017-08-02T21:59:59+00:00), before the change: availablesource · retrieved
AfterRIPE NCC delegated statistics 2017-08-03 (produced 2017-08-03T21:59:59+00:00), after the change: allocated (dated 2017-08-03)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
2017-08-02RIPE NCCReleasedReleased from hold (the RIPE NCC lists it as 'available')Observed only
Statistics
AS51377 reserved on 2017-08-01, available on 2017-08-02
Inventory
The RIPE NCC's statistics now list it as 'available'; reissue not confirmed
The RIPE NCC's statistics show it reserved on 2017-08-01 and available on 2017-08-02. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2013-11-11, 1360 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 (2017-08-03: Added AS51377), so the before-and-after statistics may include it.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: AS51377 reserved on 2017-08-01, available on 2017-08-02source · retrieved
BeforeRIPE NCC delegated statistics 2017-08-01 (produced 2017-08-01T21:59:59+00:00), before the change: reservedsource · retrieved
AfterRIPE NCC delegated statistics 2017-08-02 (produced 2017-08-02T21:59:59+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
2013-11-11RIPE NCC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
AS51377 allocated on 2013-11-10, reserved on 2013-11-11
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 2010-08-05) on 2013-11-10 and reserved on 2013-11-11. 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: AS51377 allocated on 2013-11-10, reserved on 2013-11-11source · retrieved
BeforeRIPE NCC delegated statistics 2013-11-10 (produced 2013-11-10T22:59:59+00:00), before the change: allocated (dated 2010-08-05)source · retrieved
AfterRIPE NCC delegated statistics 2013-11-11 (produced 2013-11-11T22:59:59+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
2010-08-06RIPE NCC+ RegisteredApparent new issuanceStrong inference
Statistics
AS51377 available on 2010-08-05, allocated on 2010-08-06
Inventory
Likely issued from RIPE NCC-controlled inventory
No transfer record matches. The RIPE NCC's statistics show it available on 2010-08-05 and allocated (dated 2010-08-05) on 2010-08-06. 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: AS51377 available on 2010-08-05, allocated on 2010-08-06source · retrieved
BeforeRIPE NCC delegated statistics 2010-08-05, before the change: availablesource · retrieved
AfterRIPE NCC delegated statistics 2010-08-06, after the change: allocated (dated 2010-08-05)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 (1)
Date (UTC)
Log
Type
Range moved
From
To
RIPE NCC
Resource transfer
AS51377
CoMaSys ApS RIPE NCC
CoMaSys ApS RIPE NCC
Every record in the ARIN, RIPE NCC, APNIC, LACNIC and AFRINIC transfer logs that moved any part of this ASN (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.