rirtracker

IPv4 range · 4 prefixes · 1,536 addresses

161.188.205.0 - 161.188.210.255

161.188.205.0/24, 161.188.206.0/23, 161.188.208.0/23, 161.188.210.0/24

Now

ARIN statistics
Allocated (dated 2020-12-29), allocated (dated 2022-09-12) (US), in the latest file
Registry
ARIN
Holder
Amazon Technologies Inc.
From
ARIN's latest statistics and the latest transfer record

Latest change

+ Add Intra-ARIN transfer

Reported
2020-12-29 (ARIN)
Confidence
Confirmed
Inventory
No effect on ARIN applicant inventory

Timeline (1)

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.

2020-12-29 ARIN + Add Intra-ARIN transfer Confirmed
ARIN-Issued
Add 161.188.205.0-161.188.210.255
From
The Philadelphia Inquirer, LLC ARIN
To
Amazon Technologies Inc. ARIN
Piece of
161.188.0.0/16: the rest of the block stayed with the seller
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a transfer from The Philadelphia Inquirer, LLC (ARIN) to Amazon Technologies Inc. (ARIN), recorded as 4 transfer records that together cover exactly this range, on 2020-12-29 22:22 UTC. ARIN-Issued lists it as "Add" because the registration changed hands; it is not a new allocation from ARIN.

Evidence (7) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2020-12-29: "Add 161.188.205.0-161.188.210.255" source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2020-12-29 22:22 UTC, The Philadelphia Inquirer, LLC (ARIN) to Amazon Technologies Inc. (ARIN); resources moved: 161.188.205.0/24 source · retrieved
  3. Transfer log Transfer log: RESOURCE_TRANSFER on 2020-12-29 22:22 UTC, The Philadelphia Inquirer, LLC (ARIN) to Amazon Technologies Inc. (ARIN); resources moved: 161.188.206.0/23 source · retrieved
  4. Transfer log Transfer log: RESOURCE_TRANSFER on 2020-12-29 22:22 UTC, The Philadelphia Inquirer, LLC (ARIN) to Amazon Technologies Inc. (ARIN); resources moved: 161.188.208.0/23 source · retrieved
  5. Transfer log Transfer log: RESOURCE_TRANSFER on 2020-12-29 22:22 UTC, The Philadelphia Inquirer, LLC (ARIN) to Amazon Technologies Inc. (ARIN); resources moved: 161.188.210.0/24 source · retrieved
  6. Before ARIN delegated statistics 2020-12-28 (produced 2020-12-28T15:00:13+00:00), before the report: assigned (dated 1993-01-21) source · retrieved
  7. After ARIN delegated statistics 2020-12-30 (produced 2020-12-30T15:00:14+00:00), after the report: allocated (dated 2020-12-29) 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

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2024-08-30ARIN161.188.210.0/24Transfer logMerger/acquisition
2024-05-31ARIN161.188.206.0/23Transfer logMerger/acquisition
2024-05-31ARIN161.188.208.0/23Transfer logMerger/acquisition
2022-09-12ARIN161.188.210.0/24+ AddIntra-ARIN transfer
2020-12-07ARIN161.188.0.0/16Transfer logMerger/acquisition

Transfer records (9)

Date (UTC)LogTypeRange movedFromTo
ARINMerger acquisition161.188.210.0/24 ACT, Inc. ARINImpact Asset Corp. ARIN
ARINMerger acquisition161.188.206.0/23 Amazon Technologies Inc. ARINAmazon.com, Inc. ARIN
ARINMerger acquisition161.188.208.0/23 Amazon Technologies Inc. ARINAmazon.com, Inc. ARIN
ARINResource transfer161.188.210.0/24 Amazon Technologies Inc. ARINACT, Inc. ARIN
ARINResource transfer161.188.205.0/24 The Philadelphia Inquirer, LLC ARINAmazon Technologies Inc. ARIN
ARINResource transfer161.188.206.0/23 The Philadelphia Inquirer, LLC ARINAmazon Technologies Inc. ARIN
ARINResource transfer161.188.208.0/23 The Philadelphia Inquirer, LLC ARINAmazon Technologies Inc. ARIN
ARINResource transfer161.188.210.0/24 The Philadelphia Inquirer, LLC ARINAmazon Technologies Inc. ARIN
ARINMerger acquisition161.188.0.0/16 Philadelphia Newspapers, Inc. ARINThe Philadelphia Inquirer, LLC 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/161.188.205.0-161.188.210.255.json