rirtracker

IPv4 range · 4,096 addresses

173.0.160.0/20

Now

ARIN statistics
Allocated (dated 2017-03-28) (US), in the latest file
Registry
ARIN
Holder
Sohonet Inc.
From
ARIN's latest statistics and the latest transfer record

Latest change

+ Add Intra-ARIN transfer

Reported
2017-03-28 (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.

2017-03-28 ARIN + Add Intra-ARIN transfer Confirmed
ARIN-Issued
Add 173.0.160.0-173.0.175.255
From
Dynamic Concepts, Inc. ARIN
To
Sohonet Inc. ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a transfer from Dynamic Concepts, Inc. (ARIN) to Sohonet Inc. (ARIN) on 2017-03-28 14:06 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 2017-03-28: "Add 173.0.160.0-173.0.175.255" source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2017-03-28 14:06 UTC, Dynamic Concepts, Inc. (ARIN) to Sohonet Inc. (ARIN); resources moved: 173.0.160.0/20 source · retrieved
  3. Before ARIN delegated statistics 2017-03-27 (produced 2017-03-27T05:09:17+00:00), before the report: allocated (dated 2010-06-25) source · retrieved
  4. After ARIN delegated statistics 2017-03-29 (produced 2017-03-29T05:09:56+00:00), after the report: allocated (dated 2017-03-28) 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
2010-06-25 ARIN + Add Apparent reissuance of previously removed resource Strong inference
ARIN-Issued
Add 173.0.160.0-173.0.175.255
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it not issued on 2010-06-24 and allocated (dated 2010-06-25) on 2010-06-26. (Until 2013-03-05, ARIN's statistics list only what's issued.) The tracker saw this range released from hold on 2010-04-12 (173.0.0.0-173.0.255.255), so it appears to have been issued again from ARIN's pool.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2010-06-25: "Add 173.0.160.0-173.0.175.255" source · retrieved
  2. Before ARIN delegated statistics 2010-06-24, before the report: not issued source · retrieved
  3. After ARIN delegated statistics 2010-06-26, after the report: allocated (dated 2010-06-25) source · retrieved
Classification history for this change (4 versions)
  1. : Apparent reissuance of previously removed resource, strong inference (classifier 1.3.0)
  2. : Apparent reissuance of previously removed resource, strong inference (classifier 1.3.1)
  3. : Apparent reissuance of previously removed resource, strong inference (classifier 1.3.2)
  4. : Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2010-04-12ARIN173.0.0.0/16− RemoveUnresolved
2009-04-08ARIN173.0.0.0/16Not in ARIN-IssuedRemoved

Transfer records (1)

Date (UTC)LogTypeRange movedFromTo
ARINResource transfer173.0.160.0/20 Dynamic Concepts, Inc. ARINSohonet 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/173.0.160.0-173.0.175.255.json