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.
2024-01-25ARINTransfer logMerger/acquisition or reorganizationConfirmed
Transfer log
Merger/acquisition: TransWorks (ARIN) to Norfolk Southern Railway (ARIN)
From
TransWorks ARIN
To
Norfolk Southern Railway ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a merger, acquisition or reorganization from TransWorks (ARIN) to Norfolk Southern Railway (ARIN) on 2024-01-25 12:12 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it.
Evidence (3) · classifier 1.4.0,
Transfer logTransfer log: MERGER_ACQUISITION on 2024-01-25 12:12 UTC, TransWorks (ARIN) to Norfolk Southern Railway (ARIN); resources moved: AS46893source · retrieved
BeforeARIN delegated statistics 2024-01-24 (produced 2024-01-24T14:00:43+00:00), before the report: assigned (dated 2011-08-18)source · retrieved
AfterARIN delegated statistics 2024-01-26 (produced 2024-01-26T14:00:44+00:00), after the report: assigned (dated 2011-08-18)source · retrieved
2016-04-06ARINTransfer logMerger/acquisition or reorganizationConfirmed
Transfer log
Merger/acquisition: TRIPLE CROWN SERVICES COMPANY (ARIN) to TransWorks (ARIN)
From
TRIPLE CROWN SERVICES COMPANY ARIN
To
TransWorks ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a merger, acquisition or reorganization from TRIPLE CROWN SERVICES COMPANY (ARIN) to TransWorks (ARIN) on 2016-04-06 18:25 UTC. The registration changed hands; it is not a new allocation from ARIN. ARIN-Issued and ARIN's statistics don't show this change; only the transfer log records it.
Evidence (3) · classifier 1.4.0,
Transfer logTransfer log: MERGER_ACQUISITION on 2016-04-06 18:25 UTC, TRIPLE CROWN SERVICES COMPANY (ARIN) to TransWorks (ARIN); resources moved: AS46893source · retrieved
BeforeARIN delegated statistics 2016-04-05 (produced 2016-04-05T05:05:13+00:00), before the report: assigned (dated 2011-08-18)source · retrieved
AfterARIN delegated statistics 2016-04-07 (produced 2016-04-07T05:04:56+00:00), after the report: assigned (dated 2011-08-18)source · retrieved
2011-02-09ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2011-08-09. Possible reissue candidate after this date; not confirmed available.
Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2009-04-14) on 2011-02-08 and not issued on 2011-02-10. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed ASNs for 6 calendar months before reissuing them, so the estimated hold end is 2011-08-09. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS46893 allocated on 2011-02-09, not listed on 2011-02-10source · retrieved
BeforeARIN delegated statistics 2011-02-08, before the report: allocated (dated 2009-04-14)source · retrieved
AfterARIN delegated statistics 2011-02-10, after the report: not issuedsource · 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 (2)
Date (UTC)
Log
Type
Range moved
From
To
ARIN
Merger acquisition
AS46893
TransWorks ARIN
Norfolk Southern Railway ARIN
ARIN
Merger acquisition
AS46893
TRIPLE CROWN SERVICES COMPANY ARIN
TransWorks ARIN
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.