IPv4 range · 4,096 addresses

172.255.32.0/20

Now

ARIN statistics: Allocated (dated 2013-03-13) (US), in the latest file
Registry: ARIN
Holder: Leaseweb USA, Inc.
From: ARIN's latest statistics and the latest transfer record

Latest change

Transfer log Merger/acquisition or reorganization

Reported: 2021-02-15 (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.

2021-02-15 ARIN Transfer log Merger/acquisition or reorganization Confirmed

Transfer log: Merger/acquisition: Nobis Technology Group, LLC (ARIN) to Leaseweb USA, Inc. (ARIN)
From: Nobis Technology Group, LLC ARIN
To: Leaseweb USA, Inc. ARIN
Inventory: No effect on ARIN applicant inventory

ARIN's transfer log records a merger, acquisition or reorganization from Nobis Technology Group, LLC (ARIN) to Leaseweb USA, Inc. (ARIN) on 2021-02-15 14:32 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, 2026-10-14 00:18 UTC

Transfer log Transfer log: MERGER_ACQUISITION on 2021-02-15 14:32 UTC, Nobis Technology Group, LLC (ARIN) to Leaseweb USA, Inc. (ARIN); resources moved: 172.255.32.0/20 source · retrieved 2026-10-13 13:57 UTC
Before ARIN delegated statistics 2021-02-14 (produced 2021-02-14T15:00:13+00:00), before the report: allocated (dated 2013-03-13) source · retrieved 2026-10-12 22:38 UTC
After ARIN delegated statistics 2021-02-16 (produced 2021-02-16T15:00:13+00:00), after the report: allocated (dated 2013-03-13) source · retrieved 2026-10-12 22:38 UTC

Changes to overlapping ranges

Date	Registry	Range	Recorded as	What happened
2013-03-13	ARIN	172.255.0.0/16	+ Add	Apparent new issuance

Date

Registry

Range

Recorded as

What happened

2013-03-13

ARIN

172.255.0.0/16

+ Add

Apparent new issuance

Transfer records (1)

Date (UTC)	Log	Type	Range moved	From	To
2021-02-15 14:32 UTC	ARIN	Merger acquisition	172.255.32.0/20	Nobis Technology Group, LLC ARIN	Leaseweb USA, Inc. ARIN

Date (UTC)

Log

Type

Range moved

From

2021-02-15 14:32 UTC

ARIN

Merger acquisition

172.255.32.0/20

Nobis Technology Group, LLC ARIN

Leaseweb USA, 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/172.255.32.0-172.255.47.255.json