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.
2018-01-29ARINTransfer logMerger/acquisition or reorganizationConfirmed
Transfer log
Merger/acquisition: Telecom Ottawa Limited (ARIN) to Rogers Communications Canada Inc. (ARIN)
From
Telecom Ottawa Limited ARIN
To
Rogers Communications Canada Inc. ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a merger, acquisition or reorganization from Telecom Ottawa Limited (ARIN) to Rogers Communications Canada Inc. (ARIN) on 2018-01-29 17:04 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 2018-01-29 17:04 UTC, Telecom Ottawa Limited (ARIN) to Rogers Communications Canada Inc. (ARIN); resources moved: 173.195.48.0/20source · retrieved
BeforeARIN delegated statistics 2018-01-28 (produced 2018-01-28T06:10:09+00:00), before the report: allocated (dated 2010-09-15)source · retrieved
AfterARIN delegated statistics 2018-01-30 (produced 2018-01-30T06:10:01+00:00), after the report: allocated (dated 2010-09-15)source · retrieved
2010-09-15ARIN+ AddApparent new issuanceStrong inference
ARIN-Issued
Add 173.195.48.0-173.195.63.255
Inventory
Likely issued from ARIN-controlled inventory
No transfer record matches. ARIN's statistics show it not issued on 2010-09-14 and allocated (dated 2010-09-15) on 2010-09-16. (Until 2013-03-05, ARIN's statistics list only what's issued.) It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2010-09-15: "Add 173.195.48.0-173.195.63.255"source · retrieved
BeforeARIN delegated statistics 2010-09-14, before the report: not issuedsource · retrieved
AfterARIN delegated statistics 2010-09-16, after the report: allocated (dated 2010-09-15)source · retrieved
Classification history for this change (4 versions)
: Apparent new issuance, strong inference (classifier 1.3.0)
: Apparent new issuance, strong inference (classifier 1.3.1)
: Apparent new issuance, strong inference (classifier 1.3.2)
: Apparent new issuance, strong inference (classifier 1.4.0) current
Transfer records (1)
Date (UTC)
Log
Type
Range moved
From
To
ARIN
Merger acquisition
173.195.48.0/20
Telecom Ottawa Limited ARIN
Rogers Communications Canada 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.