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.
2022-05-26ARINTransfer logMerger/acquisition or reorganizationConfirmed
Transfer log
Merger/acquisition: UltraDNS Corporation (ARIN) to Neustar Security Services (ARIN)
From
UltraDNS Corporation ARIN
To
Neustar Security Services ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a merger, acquisition or reorganization from UltraDNS Corporation (ARIN) to Neustar Security Services (ARIN) on 2022-05-26 19:03 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 2022-05-26 19:03 UTC, UltraDNS Corporation (ARIN) to Neustar Security Services (ARIN); resources moved: 204.74.66.0/23source · retrieved
BeforeARIN delegated statistics 2022-05-25 (produced 2022-05-25T13:00:13+00:00), before the report: allocated (dated 2022-01-28)source · retrieved
AfterARIN delegated statistics 2022-05-27 (produced 2022-05-27T13:00:14+00:00), after the report: allocated (dated 2022-01-28)source · retrieved
204.74.64.0/18: the rest of the block stayed with the seller
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a transfer from Internet Media Network (ARIN) to UltraDNS Corporation (ARIN), recorded as 2 transfer records that together cover exactly this range, on 2022-01-28 19:53 UTC. ARIN-Issued lists it as "Add" because the registration changed hands; it is not a new allocation from ARIN.
Evidence (5) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2022-01-28: "Add 204.74.66.0-204.74.67.255"source · retrieved
Transfer logTransfer log: RESOURCE_TRANSFER on 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.66.0/24source · retrieved
Transfer logTransfer log: RESOURCE_TRANSFER on 2022-01-28 19:53 UTC, Internet Media Network (ARIN) to UltraDNS Corporation (ARIN); resources moved: 204.74.67.0/24source · retrieved
BeforeARIN delegated statistics 2022-01-27 (produced 2022-01-27T14:00:10+00:00), before the report: allocated (dated 1994-10-26)source · retrieved
AfterARIN delegated statistics 2022-01-29 (produced 2022-01-29T14:00:10+00:00), after the report: allocated (dated 2022-01-28)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
204.74.66.0/23
UltraDNS Corporation ARIN
Neustar Security Services ARIN
ARIN
Resource transfer
204.74.66.0/24
Internet Media Network ARIN
UltraDNS Corporation ARIN
ARIN
Resource transfer
204.74.67.0/24
Internet Media Network ARIN
UltraDNS Corporation 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.