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.
ARIN's transfer log records a transfer from WestRock Company (ARIN) to ZSCALER, INC. (ARIN) on 2022-04-19 19:08 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 2022-04-19: "Add 170.85.0.0-170.85.255.255"source · retrieved
Transfer logTransfer log: RESOURCE_TRANSFER on 2022-04-19 19:08 UTC, WestRock Company (ARIN) to ZSCALER, INC. (ARIN); resources moved: 170.85.0.0/16source · retrieved
BeforeARIN delegated statistics 2022-04-18 (produced 2022-04-18T13:00:10+00:00), before the report: allocated (dated 1994-03-08)source · retrieved
AfterARIN delegated statistics 2022-04-20 (produced 2022-04-20T13:00:10+00:00), after the report: allocated (dated 2022-04-19)source · retrieved
Classification history for this change (4 versions)
: Intra-ARIN transfer, confirmed (classifier 1.4.0) current
2021-11-29ARINTransfer logMerger/acquisition or reorganizationConfirmed
Transfer log
Merger/acquisition: MWV (ARIN) to WestRock Company (ARIN)
From
MWV ARIN
To
WestRock Company ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a merger, acquisition or reorganization from MWV (ARIN) to WestRock Company (ARIN) on 2021-11-29 22:48 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 2021-11-29 22:48 UTC, MWV (ARIN) to WestRock Company (ARIN); resources moved: 170.85.0.0/16source · retrieved
BeforeARIN delegated statistics 2021-11-28 (produced 2021-11-28T14:00:14+00:00), before the report: assigned (dated 1994-03-08)source · retrieved
AfterARIN delegated statistics 2021-11-30 (produced 2021-11-30T14:00:12+00:00), after the report: assigned (dated 1994-03-08)source · retrieved
2015-06-18ARINTransfer logMerger/acquisition or reorganizationConfirmed
Transfer log
Merger/acquisition: Westvaco Corporation (ARIN) to MWV (ARIN)
From
Westvaco Corporation ARIN
To
MWV ARIN
Inventory
No effect on ARIN applicant inventory
ARIN's transfer log records a merger, acquisition or reorganization from Westvaco Corporation (ARIN) to MWV (ARIN) on 2015-06-18 18:19 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 2015-06-18 18:19 UTC, Westvaco Corporation (ARIN) to MWV (ARIN); resources moved: 170.85.0.0/16source · retrieved
BeforeARIN delegated statistics 2015-06-17 (produced 2015-06-17T05:04:49+00:00), before the report: assigned (dated 1994-03-08)source · retrieved
AfterARIN delegated statistics 2015-06-19 (produced 2015-06-19T05:05:11+00:00), after the report: assigned (dated 1994-03-08)source · retrieved
Transfer records (3)
Date (UTC)
Log
Type
Range moved
From
To
ARIN
Resource transfer
170.85.0.0/16
WestRock Company ARIN
ZSCALER, INC. ARIN
ARIN
Merger acquisition
170.85.0.0/16
MWV ARIN
WestRock Company ARIN
ARIN
Merger acquisition
170.85.0.0/16
Westvaco Corporation ARIN
MWV 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.