rirtracker

IPv4 range · 4,096 addresses

66.170.96.0/20

Now

ARIN statistics
Allocated (dated 2016-05-24) (US), in the latest file
Registry
ARIN
Holder
Avago Technologies U.S. Inc.
From
ARIN's latest statistics and the latest transfer record

Latest change

Transfer log Merger/acquisition or reorganization

Reported
2025-11-14 (ARIN)
Confidence
Confirmed
Inventory
No effect on ARIN applicant inventory

Timeline (2)

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.

2025-11-14 ARIN Transfer log Merger/acquisition or reorganization Confirmed
Transfer log
Merger/acquisition: VMWare, Inc. (ARIN) to Avago Technologies U.S. Inc. (ARIN)
From
VMWare, Inc. ARIN
To
Avago Technologies U.S. Inc. ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a merger, acquisition or reorganization from VMWare, Inc. (ARIN) to Avago Technologies U.S. Inc. (ARIN) on 2025-11-14 17:15 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,
  1. Transfer log Transfer log: MERGER_ACQUISITION on 2025-11-14 17:15 UTC, VMWare, Inc. (ARIN) to Avago Technologies U.S. Inc. (ARIN); resources moved: 66.170.96.0/20 source · retrieved
  2. Before ARIN delegated statistics 2025-11-13 (produced 2025-11-13T14:00:46+00:00), before the report: allocated (dated 2016-05-24) source · retrieved
  3. After ARIN delegated statistics 2025-11-15 (produced 2025-11-15T14:00:50+00:00), after the report: allocated (dated 2016-05-24) source · retrieved
2016-05-24 ARIN + Add Intra-ARIN transfer Confirmed
ARIN-Issued
Add 66.170.96.0-66.170.111.255
From
Bluemont Networks, LLC ARIN
To
VMWare, Inc. ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a transfer from Bluemont Networks, LLC (ARIN) to VMWare, Inc. (ARIN) on 2016-05-24 19:10 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,
  1. ARIN-Issued ARIN-Issued report for 2016-05-24: "Add 66.170.96.0-66.170.111.255" source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2016-05-24 19:10 UTC, Bluemont Networks, LLC (ARIN) to VMWare, Inc. (ARIN); resources moved: 66.170.96.0/20 source · retrieved
  3. Before ARIN delegated statistics 2016-05-23 (produced 2016-05-23T05:03:48+00:00), before the report: allocated (dated 2001-09-21) source · retrieved
  4. After ARIN delegated statistics 2016-05-25 (produced 2016-05-25T05:04:10+00:00), after the report: assigned (dated 2016-05-24) source · retrieved
Classification history for this change (4 versions)
  1. : Intra-ARIN transfer, confirmed (classifier 1.3.0)
  2. : Intra-ARIN transfer, confirmed (classifier 1.3.1)
  3. : Intra-ARIN transfer, confirmed (classifier 1.3.2)
  4. : Intra-ARIN transfer, confirmed (classifier 1.4.0) current

Transfer records (2)

Date (UTC)LogTypeRange movedFromTo
ARINMerger acquisition66.170.96.0/20 VMWare, Inc. ARINAvago Technologies U.S. Inc. ARIN
ARINResource transfer66.170.96.0/20 Bluemont Networks, LLC ARINVMWare, 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.

This page as data: ip/66.170.96.0-66.170.111.255.json