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.
2016-05-25ARINTransfer logMerger/acquisition or reorganizationConfirmed
Transfer log
Merger/acquisition: Acxiom IT Outsourcing, Inc. (ARIN) to Ensono LP (ARIN)
From
Acxiom IT Outsourcing, Inc. ARIN
To
Ensono LP ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a merger, acquisition or reorganization from Acxiom IT Outsourcing, Inc. (ARIN) to Ensono LP (ARIN) on 2016-05-25 19:12 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 2016-05-25 19:12 UTC, Acxiom IT Outsourcing, Inc. (ARIN) to Ensono LP (ARIN); resources moved: 198.134.142.0/24source · retrieved
BeforeARIN delegated statistics 2016-05-24 (produced 2016-05-24T05:03:55+00:00), before the report: assigned (dated 1993-05-04)source · retrieved
AfterARIN delegated statistics 2016-05-26 (produced 2016-05-26T05:04:00+00:00), after the report: assigned (dated 1993-05-04)source · retrieved
2015-08-28ARINTransfer logMerger/acquisition or reorganizationConfirmed
Transfer log
Merger/acquisition: May & Speh, Inc. (ARIN) to Acxiom IT Outsourcing, Inc. (ARIN)
From
May & Speh, Inc. ARIN
To
Acxiom IT Outsourcing, Inc. ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a merger, acquisition or reorganization from May & Speh, Inc. (ARIN) to Acxiom IT Outsourcing, Inc. (ARIN) on 2015-08-28 19:33 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 2015-08-28 19:33 UTC, May & Speh, Inc. (ARIN) to Acxiom IT Outsourcing, Inc. (ARIN); resources moved: 198.134.142.0/24source · retrieved
BeforeARIN delegated statistics 2015-08-27 (produced 2015-08-27T05:05:25+00:00), before the report: assigned (dated 1993-05-04)source · retrieved
AfterARIN delegated statistics 2015-08-29 (produced 2015-08-29T05:05:28+00:00), after the report: assigned (dated 1993-05-04)source · retrieved
Transfer records (2)
Date (UTC)
Log
Type
Range moved
From
To
ARIN
Merger acquisition
198.134.142.0/24
Acxiom IT Outsourcing, Inc. ARIN
Ensono LP ARIN
ARIN
Merger acquisition
198.134.142.0/24
May & Speh, Inc. ARIN
Acxiom IT Outsourcing, Inc. 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.