rirtracker

IPv4 range · 65,536 addresses

135.90.0.0/16

Now

RIPE NCC statistics
Allocated (dated 1996-05-06) (US), in the latest file
Registry
RIPE NCC
Holder
International Business Machines Corporation
From
The RIPE NCC's latest statistics and the latest transfer record

Latest change

Transfer log Intra-RIPE NCC transfer

Reported
2025-11-13 (RIPE NCC)
Confidence
Confirmed
Inventory
No effect on RIPE NCC applicant inventory

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.

2025-11-13 RIPE NCC Transfer log Intra-RIPE NCC transfer Confirmed
Transfer log
Transfer: SoftLayer Technologies, Inc. (RIPE NCC) to International Business Machines Corporation (RIPE NCC)
From
SoftLayer Technologies, Inc. RIPE NCC
To
International Business Machines Corporation RIPE NCC
Inventory
No effect on RIPE NCC applicant inventory

The RIPE NCC's transfer log records a transfer from SoftLayer Technologies, Inc. (RIPE NCC) to International Business Machines Corporation (RIPE NCC) on 2025-11-13 19:00 UTC. The registration changed hands; it is not a new allocation from the RIPE NCC.

Evidence (3) · classifier 1.4.0,
  1. Transfer log Transfer log: RESOURCE_TRANSFER on 2025-11-13 19:00 UTC, SoftLayer Technologies, Inc. (RIPE NCC) to International Business Machines Corporation (RIPE NCC); resources moved: 135.90.0.0/16 source · retrieved
  2. Before RIPE NCC delegated statistics 2025-11-12 (produced 2025-11-12T22:59:59+00:00), before the change: allocated (dated 1996-05-06) source · retrieved
  3. After RIPE NCC delegated statistics 2025-11-13 (produced 2025-11-13T22:59:59+00:00), after the change: allocated (dated 1996-05-06) source · retrieved
Classification history for this change (4 versions)
  1. : Intra-RIPE NCC transfer, confirmed (classifier 1.3.0)
  2. : Intra-RIPE NCC transfer, confirmed (classifier 1.3.1)
  3. : Intra-RIPE NCC transfer, confirmed (classifier 1.3.2)
  4. : Intra-RIPE NCC transfer, confirmed (classifier 1.4.0) current
2017-01-30 ARIN Not in ARIN-Issued Inter-RIR transfer out of ARIN Confirmed
From
Dasan Zhone Solutions, Inc. ARIN
To
SoftLayer Technoligies, Inc RIPE NCC
Same transfer
The RIPE NCC recorded it too: RIPE NCC, 2017-01-30.
Inventory
Transferred out of ARIN administration; not offered to ARIN applicants

ARIN's transfer log records a transfer from Dasan Zhone Solutions, Inc. (ARIN) to SoftLayer Technoligies, Inc (RIPE NCC) on 2017-01-30 15:38 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: 135.90.0.0/16 assigned on 2017-01-30, not listed on 2017-01-31 source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2017-01-30 15:38 UTC, Dasan Zhone Solutions, Inc. (ARIN) to SoftLayer Technoligies, Inc (RIPE NCC); resources moved: 135.90.0.0/16 source · retrieved
  3. Before ARIN delegated statistics 2017-01-29 (produced 2017-01-29T09:20:21+00:00), before the report: assigned (dated 1996-05-06) source · retrieved
  4. After ARIN delegated statistics 2017-01-31 (produced 2017-01-31T06:08:56+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
2017-01-30 RIPE NCC Transfer log Inter-RIR transfer into the RIPE NCC Confirmed
Transfer log
Transfer: (no name) (ARIN) to SoftLayer Technologies, Inc. (RIPE NCC)
From
(no name given) ARIN
To
SoftLayer Technologies, Inc. RIPE NCC
Same transfer
Also a change at ARIN, the sending registry: ARIN, 2017-01-30. 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 SoftLayer Technologies, Inc. (RIPE NCC) on 2017-01-30 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 2017-01-30 19:00 UTC, (no name) (ARIN) to SoftLayer Technologies, Inc. (RIPE NCC); resources moved: 135.90.0.0/16 source · retrieved
  2. Before RIPE NCC delegated statistics 2017-01-29 (produced 2017-01-29T22:59:59+00:00), before the change: not listed source · retrieved
  3. After RIPE NCC delegated statistics 2017-01-30 (produced 2017-01-30T22:59:59+00:00), after the change: allocated (dated 1996-05-06) 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

Transfer records (3)

Date (UTC)LogTypeRange movedFromTo
RIPE NCCResource transfer135.90.0.0/16 SoftLayer Technologies, Inc. RIPE NCCInternational Business Machines Corporation RIPE NCC
RIPE NCCResource transfer135.90.0.0/16 (no name given) ARINSoftLayer Technologies, Inc. RIPE NCC
ARINResource transfer135.90.0.0/16 Dasan Zhone Solutions, Inc. ARINSoftLayer Technoligies, Inc RIPE NCC

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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