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.
2026-06-15ARINTransfer logMerger/acquisition or reorganizationConfirmed
Transfer log
Merger/acquisition: AM Data Service, Inc. (ARIN) to Adaptive Data Networks, LLC (ARIN)
From
AM Data Service, Inc. ARIN
To
Adaptive Data Networks, LLC ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a merger, acquisition or reorganization from AM Data Service, Inc. (ARIN) to Adaptive Data Networks, LLC (ARIN) on 2026-06-15 20:29 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 2026-06-15 20:29 UTC, AM Data Service, Inc. (ARIN) to Adaptive Data Networks, LLC (ARIN); resources moved: AS26272source · retrieved
BeforeARIN delegated statistics 2026-06-14 (produced 2026-06-14T09:00:20+00:00), before the report: assigned (dated 2018-11-20)source · retrieved
AfterARIN delegated statistics 2026-06-16 (produced 2026-06-16T09:00:20+00:00), after the report: assigned (dated 2018-11-20)source · retrieved
2018-11-20ARIN+ AddApparent reissuance of previously removed resourceStrong inference
ARIN-Issued
Add AS26272
Inventory
Likely issued from ARIN-controlled inventory
No transfer record matches. ARIN's statistics show it reserved on 2018-11-19 and assigned (dated 2018-11-20) on 2018-11-21. The tracker saw this range removed from registration on 2018-09-18 (AS26272), so it appears to have been issued again from ARIN's pool.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2018-11-20: "Add AS26272"source · retrieved
BeforeARIN delegated statistics 2018-11-19 (produced 2018-11-19T06:00:11+00:00), before the report: reservedsource · retrieved
AfterARIN delegated statistics 2018-11-21 (produced 2018-11-21T06:00:12+00:00), after the report: assigned (dated 2018-11-20)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2018-11-20ARIN− RemoveChange to ARIN's own pool recordStrong inference
ARIN-Issued
Remove AS26272
Inventory
Part of the issuance reported the same day
ARIN's statistics show it reserved on 2018-11-19 and assigned (dated 2018-11-20) on 2018-11-21. ARIN removed its own pool record for this range as part of issuing it: the same report adds AS26272. The issuance is explained on that line.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2018-11-20: "Remove AS26272"source · retrieved
BeforeARIN delegated statistics 2018-11-19 (produced 2018-11-19T06:00:11+00:00), before the report: reservedsource · retrieved
AfterARIN delegated statistics 2018-11-21 (produced 2018-11-21T06:00:12+00:00), after the report: assigned (dated 2018-11-20)source · retrieved
Classification history for this change (4 versions)
: Change to ARIN's own pool record, strong inference (classifier 1.3.0)
: Change to ARIN's own pool record, strong inference (classifier 1.3.1)
: Change to ARIN's own pool record, strong inference (classifier 1.3.2)
: Change to ARIN's own pool record, strong inference (classifier 1.4.0) current
2018-09-18ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2019-03-18. 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 assigned (dated 2012-04-24) on 2018-09-17 and reserved on 2018-09-19. 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 2019-03-18. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS26272 assigned on 2018-09-18, reserved on 2018-09-19source · retrieved
BeforeARIN delegated statistics 2018-09-17 (produced 2018-09-17T05:00:16+00:00), before the report: assigned (dated 2012-04-24)source · retrieved
AfterARIN delegated statistics 2018-09-19 (produced 2018-09-19T05:00:17+00:00), after the report: 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
2016-11-08ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2017-05-08. 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 assigned (dated 2012-04-24) on 2016-11-07 and reserved on 2016-11-09. 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 2017-05-08. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS26272 assigned on 2016-11-08, reserved on 2016-11-09source · retrieved
BeforeARIN delegated statistics 2016-11-07 (produced 2016-11-07T06:08:47+00:00), before the report: assigned (dated 2012-04-24)source · retrieved
AfterARIN delegated statistics 2016-11-09 (produced 2016-11-09T06:09:28+00:00), after the report: 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
2015-11-10ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2016-05-10. 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 assigned (dated 2012-04-24) on 2015-11-09 and reserved on 2015-11-11. 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 2016-05-10. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS26272 assigned on 2015-11-10, reserved on 2015-11-11source · retrieved
BeforeARIN delegated statistics 2015-11-09 (produced 2015-11-09T06:05:17+00:00), before the report: assigned (dated 2012-04-24)source · retrieved
AfterARIN delegated statistics 2015-11-11 (produced 2015-11-11T06:04:46+00:00), after the report: 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
2013-10-29ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2014-04-29. 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 assigned (dated 2012-04-24) on 2013-10-28 and reserved on 2013-10-30. 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 2014-04-29. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS26272 assigned on 2013-10-29, reserved on 2013-10-30source · retrieved
BeforeARIN delegated statistics 2013-10-28 (produced 2013-10-28T05:06:16+00:00), before the report: assigned (dated 2012-04-24)source · retrieved
AfterARIN delegated statistics 2013-10-30 (produced 2013-10-30T05:06:31+00:00), after the report: 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
2011-10-20ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2012-04-20. 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 2002-08-12) on 2011-10-19 and not issued on 2011-10-21. (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 2012-04-20. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: AS26272 allocated on 2011-10-20, not listed on 2011-10-21source · retrieved
BeforeARIN delegated statistics 2011-10-19, before the report: allocated (dated 2002-08-12)source · retrieved
AfterARIN delegated statistics 2011-10-21, 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 (1)
Date (UTC)
Log
Type
Range moved
From
To
ARIN
Merger acquisition
AS26272
AM Data Service, Inc. ARIN
Adaptive Data Networks, LLC 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.