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.
2025-05-07ARINTransfer logMerger/acquisition or reorganizationConfirmed
Transfer log
Merger/acquisition: GTT (ARIN) to GTT Americas, LLC (ARIN)
From
GTT ARIN
To
GTT Americas, LLC ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a merger, acquisition or reorganization from GTT (ARIN) to GTT Americas, LLC (ARIN) on 2025-05-07 14:08 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 2025-05-07 14:08 UTC, GTT (ARIN) to GTT Americas, LLC (ARIN); resources moved: 72.249.192.0/20source · retrieved
BeforeARIN delegated statistics 2025-05-06 (produced 2025-05-06T13:01:10+00:00), before the report: allocated (dated 2015-03-30)source · retrieved
AfterARIN delegated statistics 2025-05-08 (produced 2025-05-08T13:01:09+00:00), after the report: allocated (dated 2015-03-30)source · retrieved
2021-03-23ARINTransfer logMerger/acquisition or reorganizationConfirmed
Transfer log
Merger/acquisition: Hibernia Networks (ARIN) to GTT (ARIN)
From
Hibernia Networks ARIN
To
GTT ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a merger, acquisition or reorganization from Hibernia Networks (ARIN) to GTT (ARIN) on 2021-03-23 21:24 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 2021-03-23 21:24 UTC, Hibernia Networks (ARIN) to GTT (ARIN); resources moved: 72.249.192.0/20source · retrieved
BeforeARIN delegated statistics 2021-03-22 (produced 2021-03-22T14:00:14+00:00), before the report: allocated (dated 2015-03-30)source · retrieved
AfterARIN delegated statistics 2021-03-24 (produced 2021-03-24T14:00:12+00:00), after the report: allocated (dated 2015-03-30)source · retrieved
72.249.192.0/18: the rest of the block stayed with the seller
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a transfer from Boston Colocation, Inc. (ARIN) to Hibernia Networks (ARIN) on 2015-03-30 18:56 UTC. ARIN-Issued lists it as "Add" because the registration changed hands; it is not a new allocation from ARIN.
Evidence (4) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2015-03-30: "Add 72.249.192.0-72.249.207.255"source · retrieved
Transfer logTransfer log: RESOURCE_TRANSFER on 2015-03-30 18:56 UTC, Boston Colocation, Inc. (ARIN) to Hibernia Networks (ARIN); resources moved: 72.249.192.0/20source · retrieved
BeforeARIN delegated statistics 2015-03-29 (produced 2015-03-29T05:05:09+00:00), before the report: allocated (dated 2008-10-21)source · retrieved
AfterARIN delegated statistics 2015-03-31 (produced 2015-03-31T05:05:00+00:00), after the report: assigned (dated 2015-03-30)source · retrieved
Classification history for this change (4 versions)
: Intra-ARIN transfer, confirmed (classifier 1.4.0) current
Transfer records (3)
Date (UTC)
Log
Type
Range moved
From
To
ARIN
Merger acquisition
72.249.192.0/20
GTT ARIN
GTT Americas, LLC ARIN
ARIN
Merger acquisition
72.249.192.0/20
Hibernia Networks ARIN
GTT ARIN
ARIN
Resource transfer
72.249.192.0/20
Boston Colocation, Inc. ARIN
Hibernia Networks 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.