rirtracker

IPv4 range · 2,048 addresses

173.234.136.0/21

Now

RIPE NCC statistics
Allocated (dated 2009-12-17) (GB), in the latest file
Registry
RIPE NCC
Holder
LEASEWEB UK LIMITED
From
The RIPE NCC's latest statistics and the latest transfer record

Latest change

Not in ARIN-Issued Inter-RIR transfer out of ARIN

Reported
2022-04-05 (ARIN)
Confidence
Confirmed
Inventory
Transferred out of ARIN administration; not offered to ARIN applicants

Timeline (3)

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.

2022-04-05 ARIN Not in ARIN-Issued Inter-RIR transfer out of ARIN Confirmed
From
Leaseweb USA, Inc. ARIN
To
LEASEWEB UK LIMITED RIPE NCC
Same transfer
The RIPE NCC recorded it too: RIPE NCC, 2022-04-05.
Inventory
Transferred out of ARIN administration; not offered to ARIN applicants

ARIN's transfer log records a transfer from Leaseweb USA, Inc. (ARIN) to LEASEWEB UK LIMITED (RIPE NCC) on 2022-04-05 14:16 UTC: it left ARIN for the RIPE NCC. ARIN-Issued didn't list this change; it is not a new allocation and is not offered to ARIN applicants.

Evidence (4) · classifier 1.4.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 173.234.136.0/21 allocated on 2022-04-05, not listed on 2022-04-06 source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2022-04-05 14:16 UTC, Leaseweb USA, Inc. (ARIN) to LEASEWEB UK LIMITED (RIPE NCC); resources moved: 173.234.136.0/21 source · retrieved
  3. Before ARIN delegated statistics 2022-04-04 (produced 2022-04-04T13:00:10+00:00), before the report: allocated (dated 2010-02-12) source · retrieved
  4. After ARIN delegated statistics 2022-04-06 (produced 2022-04-06T13:00:11+00:00), after the report: not listed source · retrieved
Classification history for this change (4 versions)
  1. : Inter-RIR transfer out of ARIN, confirmed (classifier 1.3.0)
  2. : Inter-RIR transfer out of ARIN, confirmed (classifier 1.3.1)
  3. : Inter-RIR transfer out of ARIN, confirmed (classifier 1.3.2)
  4. : Inter-RIR transfer out of ARIN, confirmed (classifier 1.4.0) current
2022-04-05 RIPE NCC Transfer log Inter-RIR transfer into the RIPE NCC Confirmed
Transfer log
Transfer: (no name) (ARIN) to LEASEWEB UK LIMITED (RIPE NCC)
From
(no name given) ARIN
To
LEASEWEB UK LIMITED RIPE NCC
Same transfer
Also a change at ARIN, the sending registry: ARIN, 2022-04-05. Lists that cover every registry show it there.
Inventory
Transferred into RIPE NCC administration; not a new issuance

The RIPE NCC's transfer log records a transfer from an unnamed organization (ARIN) to LEASEWEB UK LIMITED (RIPE NCC) on 2022-04-05 19:00 UTC: it came to the RIPE NCC from ARIN. It was already issued by another registry, so this is not a new issuance.

Evidence (3) · classifier 1.4.0,
  1. Transfer log Transfer log: RESOURCE_TRANSFER on 2022-04-05 19:00 UTC, (no name) (ARIN) to LEASEWEB UK LIMITED (RIPE NCC); resources moved: 173.234.136.0/21 source · retrieved
  2. Before RIPE NCC delegated statistics 2022-04-04 (produced 2022-04-04T21:59:00+00:00), before the change: not listed source · retrieved
  3. After RIPE NCC delegated statistics 2022-04-05 (produced 2022-04-05T21:59:00+00:00), after the change: allocated (dated 2009-12-17) source · retrieved
Classification history for this change (4 versions)
  1. : Inter-RIR transfer into the RIPE NCC, confirmed (classifier 1.3.0)
  2. : Inter-RIR transfer into the RIPE NCC, confirmed (classifier 1.3.1)
  3. : Inter-RIR transfer into the RIPE NCC, confirmed (classifier 1.3.2)
  4. : Inter-RIR transfer into the RIPE NCC, confirmed (classifier 1.4.0) current
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,
  1. 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: 173.234.136.0/21 source · retrieved
  2. Before ARIN delegated statistics 2021-02-14 (produced 2021-02-14T15:00:13+00:00), before the report: allocated (dated 2010-02-12) source · retrieved
  3. After ARIN delegated statistics 2021-02-16 (produced 2021-02-16T15:00:13+00:00), after the report: allocated (dated 2010-02-12) source · retrieved

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2010-02-12ARIN173.234.0.0/16+ AddApparent new issuance

Transfer records (3)

Date (UTC)LogTypeRange movedFromTo
RIPE NCCResource transfer173.234.136.0/21 (no name given) ARINLEASEWEB UK LIMITED RIPE NCC
ARINResource transfer173.234.136.0/21 Leaseweb USA, Inc. ARINLEASEWEB UK LIMITED RIPE NCC
ARINMerger acquisition173.234.136.0/21 Nobis Technology Group, LLC ARINLeaseweb 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.

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