rirtracker

IPv4 range · 3 prefixes · 917,504 addresses

52.130.0.0 - 52.143.255.255

52.130.0.0/15, 52.132.0.0/14, 52.136.0.0/13

Now

ARIN statistics
Allocated (dated 2015-11-24) (only part of the range) (US), in the latest file
Registry
Not known
Holder
Not looked up

Latest change

+ Add Intra-ARIN transfer

Reported
2015-11-24 (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.

2015-11-24 ARIN + Add Intra-ARIN transfer Confirmed
ARIN-Issued
Add 52.130.0.0-52.143.255.255
From
E.I. du Pont de Nemours and Co., Inc. ARIN
To
Microsoft Corporation ARIN
Piece of
52.0.0.0/8: the rest of the block stayed with the seller
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a transfer from E.I. du Pont de Nemours and Co., Inc. (ARIN) to Microsoft Corporation (ARIN), recorded as 3 transfer records that together cover exactly this range, on 2015-11-24 18:09 UTC. ARIN-Issued lists it as "Add" because the registration changed hands; it is not a new allocation from ARIN.

Evidence (6) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2015-11-24: "Add 52.130.0.0-52.143.255.255" source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2015-11-24 18:09 UTC, E.I. du Pont de Nemours and Co., Inc. (ARIN) to Microsoft Corporation (ARIN); resources moved: 52.130.0.0/15 source · retrieved
  3. Transfer log Transfer log: RESOURCE_TRANSFER on 2015-11-24 18:09 UTC, E.I. du Pont de Nemours and Co., Inc. (ARIN) to Microsoft Corporation (ARIN); resources moved: 52.132.0.0/14 source · retrieved
  4. Transfer log Transfer log: RESOURCE_TRANSFER on 2015-11-24 18:09 UTC, E.I. du Pont de Nemours and Co., Inc. (ARIN) to Microsoft Corporation (ARIN); resources moved: 52.136.0.0/13 source · retrieved
  5. Before ARIN delegated statistics 2015-11-23 (produced 2015-11-23T06:05:08+00:00), before the report: assigned (dated 1991-12-19) source · retrieved
  6. After ARIN delegated statistics 2015-11-25 (produced 2015-11-25T06:05:12+00:00), after the report: assigned (dated 2015-11-24) 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

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2018-02-09APNIC52.130.0.0/15Transfer logIntra-APNIC transfer
2017-06-12ARIN52.130.0.0/15Not in ARIN-IssuedTransfer out of ARIN
2017-06-12APNIC52.130.0.0/15Transfer logTransfer into APNIC

Transfer records (6)

Date (UTC)LogTypeRange movedFromTo
APNICResource transfer52.130.0.0/15 Microsoft Singapore Pte. Ltd. APNICChina Internet Network Information Center/BLUECLOUD APNIC
ARINResource transfer52.130.0.0/15 Microsoft Corporation ARINMicrosoft Operations Pte. Ltd. APNIC
APNICResource transfer52.130.0.0/15 MSFT ARINMicrosoft Singapore Pte. Ltd. APNIC
ARINResource transfer52.130.0.0/15 E.I. du Pont de Nemours and Co., Inc. ARINMicrosoft Corporation ARIN
ARINResource transfer52.132.0.0/14 E.I. du Pont de Nemours and Co., Inc. ARINMicrosoft Corporation ARIN
ARINResource transfer52.136.0.0/13 E.I. du Pont de Nemours and Co., Inc. ARINMicrosoft 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.

This page as data: ip/52.130.0.0-52.143.255.255.json