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.
2022-11-22ARINTransfer logMerger/acquisition or reorganizationConfirmed
Transfer log
Merger/acquisition: Arch U.S MI Services Inc. (ARIN) to Arch Capital Services LLC (ARIN)
From
Arch U.S MI Services Inc. ARIN
To
Arch Capital Services LLC ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a merger, acquisition or reorganization from Arch U.S MI Services Inc. (ARIN) to Arch Capital Services LLC (ARIN) on 2022-11-22 17:44 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 2022-11-22 17:44 UTC, Arch U.S MI Services Inc. (ARIN) to Arch Capital Services LLC (ARIN); resources moved: 205.166.172.0/24source · retrieved
BeforeARIN delegated statistics 2022-11-21 (produced 2022-11-21T14:00:10+00:00), before the report: allocated (dated 1995-04-10)source · retrieved
AfterARIN delegated statistics 2022-11-23 (produced 2022-11-23T14:00:10+00:00), after the report: allocated (dated 1995-04-10)source · retrieved
2018-09-14ARINTransfer logMerger/acquisition or reorganizationConfirmed
Transfer log
Merger/acquisition: United Guaranty Corporation (ARIN) to Arch U.S MI Services Inc. (ARIN)
From
United Guaranty Corporation ARIN
To
Arch U.S MI Services Inc. ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a merger, acquisition or reorganization from United Guaranty Corporation (ARIN) to Arch U.S MI Services Inc. (ARIN) on 2018-09-14 14:01 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 2018-09-14 14:01 UTC, United Guaranty Corporation (ARIN) to Arch U.S MI Services Inc. (ARIN); resources moved: 205.166.172.0/24source · retrieved
BeforeARIN delegated statistics 2018-09-13 (produced 2018-09-13T05:00:16+00:00), before the report: assigned (dated 1995-04-10)source · retrieved
AfterARIN delegated statistics 2018-09-16 (produced 2018-09-16T05:00:16+00:00), after the report: assigned (dated 1995-04-10)source · retrieved
Transfer records (2)
Date (UTC)
Log
Type
Range moved
From
To
ARIN
Merger acquisition
205.166.172.0/24
Arch U.S MI Services Inc. ARIN
Arch Capital Services LLC ARIN
ARIN
Merger acquisition
205.166.172.0/24
United Guaranty Corporation ARIN
Arch U.S MI Services 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.