rirtracker

IPv4 range · 65,536 addresses

170.72.0.0/16

Now

ARIN statistics
Allocated (dated 2020-07-27) (US), in the latest file
Registry
ARIN
Holder
Cisco Webex LLC
From
ARIN's latest statistics and the latest transfer record

Latest change

+ Add Intra-ARIN transfer

Reported
2020-07-27 (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.

2020-07-27 ARIN + Add Intra-ARIN transfer Confirmed
ARIN-Issued
Add 170.72.0.0-170.72.255.255
From
Vivint Wireless, Inc. ARIN
To
Cisco Webex LLC ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a transfer from Vivint Wireless, Inc. (ARIN) to Cisco Webex LLC (ARIN) on 2020-07-27 18:36 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 2020-07-27: "Add 170.72.0.0-170.72.255.255" source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2020-07-27 18:36 UTC, Vivint Wireless, Inc. (ARIN) to Cisco Webex LLC (ARIN); resources moved: 170.72.0.0/16 source · retrieved
  3. Before ARIN delegated statistics 2020-07-26 (produced 2020-07-26T14:00:13+00:00), before the report: allocated (dated 2015-03-11) source · retrieved
  4. After ARIN delegated statistics 2020-07-28 (produced 2020-07-28T14:00:12+00:00), after the report: allocated (dated 2020-07-27) 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
2015-03-11 ARIN + Add Intra-ARIN transfer Confirmed
ARIN-Issued
Add 170.72.0.0-170.72.255.255
From
Dominion Nuclear Connecticut ARIN
To
Vivint Wireless ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a transfer from Dominion Nuclear Connecticut (ARIN) to Vivint Wireless (ARIN) on 2015-03-11 19:53 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 2015-03-11: "Add 170.72.0.0-170.72.255.255" source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2015-03-11 19:53 UTC, Dominion Nuclear Connecticut (ARIN) to Vivint Wireless (ARIN); resources moved: 170.72.0.0/16 source · retrieved
  3. Before ARIN delegated statistics 2015-03-10 (produced 2015-03-10T05:05:06+00:00), before the report: assigned (dated 1994-08-12) source · retrieved
  4. After ARIN delegated statistics 2015-03-12 (produced 2015-03-12T05:05:17+00:00), after the report: allocated (dated 2015-03-11) 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
ARINResource transfer170.72.0.0/16 Vivint Wireless, Inc. ARINCisco Webex LLC ARIN
ARINResource transfer170.72.0.0/16 Dominion Nuclear Connecticut ARINVivint Wireless 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/170.72.0.0-170.72.255.255.json