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.
2023-05-09ARINTransfer logMerger/acquisition or reorganizationConfirmed
Transfer log
Merger/acquisition: AT&T Mobility Puerto Rico (ARIN) to Liberty Mobile Puerto Rico Inc. (ARIN)
From
AT&T Mobility Puerto Rico ARIN
To
Liberty Mobile Puerto Rico Inc. ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a merger, acquisition or reorganization from AT&T Mobility Puerto Rico (ARIN) to Liberty Mobile Puerto Rico Inc. (ARIN) on 2023-05-09 17:09 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 2023-05-09 17:09 UTC, AT&T Mobility Puerto Rico (ARIN) to Liberty Mobile Puerto Rico Inc. (ARIN); resources moved: 207.166.112.0/20source · retrieved
BeforeARIN delegated statistics 2023-05-08 (produced 2023-05-08T13:00:11+00:00), before the report: allocated (dated 2005-02-10)source · retrieved
AfterARIN delegated statistics 2023-05-10 (produced 2023-05-10T13:00:11+00:00), after the report: allocated (dated 2005-02-10)source · retrieved
2017-03-01ARINTransfer logMerger/acquisition or reorganizationConfirmed
Transfer log
Merger/acquisition: Centennial de Puerto Rico (ARIN) to AT&T Mobility Puerto Rico (ARIN)
From
Centennial de Puerto Rico ARIN
To
AT&T Mobility Puerto Rico ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a merger, acquisition or reorganization from Centennial de Puerto Rico (ARIN) to AT&T Mobility Puerto Rico (ARIN) on 2017-03-01 19:25 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 2017-03-01 19:25 UTC, Centennial de Puerto Rico (ARIN) to AT&T Mobility Puerto Rico (ARIN); resources moved: 207.166.112.0/20source · retrieved
BeforeARIN delegated statistics 2017-02-28 (produced 2017-02-28T06:10:35+00:00), before the report: allocated (dated 2005-02-10)source · retrieved
AfterARIN delegated statistics 2017-03-02 (produced 2017-03-02T06:10:38+00:00), after the report: allocated (dated 2005-02-10)source · retrieved
2009-08-18ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2009-10-17. 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 2005-02-10) on 2009-08-17 and not issued on 2009-08-19. (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 IPv4 space for 60 days before reissuing it, so the estimated hold end is 2009-10-17. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: 207.166.112.0/20 allocated on 2009-08-18, not listed on 2009-08-19source · retrieved
BeforeARIN delegated statistics 2009-08-17, before the report: allocated (dated 2005-02-10)source · retrieved
AfterARIN delegated statistics 2009-08-19, 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
207.166.112.0/20
AT&T Mobility Puerto Rico ARIN
Liberty Mobile Puerto Rico Inc. ARIN
ARIN
Merger acquisition
207.166.112.0/20
Centennial de Puerto Rico ARIN
AT&T Mobility Puerto Rico ARIN
Every record in the ARIN, RIPE NCC, APNIC, LACNIC and AFRINIC transfer logs that moved any part of this IPv4 range (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.