rirtracker

IPv4 range · 65,536 addresses

138.120.0.0/16

Now

RIPE NCC statistics
Allocated (dated 2015-05-08) (GB), in the latest file
Registry
RIPE NCC
Holder
Microsoft 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
2025-06-02 (ARIN)
Confidence
Confirmed
Inventory
Transferred out of ARIN administration; not offered to ARIN applicants

Timeline (7)

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.

2025-06-02 ARIN Not in ARIN-Issued Inter-RIR transfer out of ARIN Confirmed
From
Nokia of America Corporation ARIN
To
Microsoft Limited RIPE NCC
Same transfer
The RIPE NCC recorded it too: RIPE NCC, 2025-06-02.
Inventory
Transferred out of ARIN administration; not offered to ARIN applicants

ARIN's transfer log records a transfer from Nokia of America Corporation (ARIN) to Microsoft Limited (RIPE NCC) on 2025-06-02 13:42 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: 138.120.0.0/16 allocated on 2025-06-02, not listed on 2025-06-03 source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2025-06-02 13:42 UTC, Nokia of America Corporation (ARIN) to Microsoft Limited (RIPE NCC); resources moved: 138.120.0.0/16 source · retrieved
  3. Before ARIN delegated statistics 2025-06-01 (produced 2025-06-01T13:01:11+00:00), before the report: allocated (dated 2015-05-08) source · retrieved
  4. After ARIN delegated statistics 2025-06-03 (produced 2025-06-03T13:01:13+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
2025-06-02 RIPE NCC Transfer log Inter-RIR transfer into the RIPE NCC Confirmed
Transfer log
Transfer: (no name) (ARIN) to Microsoft Limited (RIPE NCC)
From
(no name given) ARIN
To
Microsoft Limited RIPE NCC
Same transfer
Also a change at ARIN, the sending registry: ARIN, 2025-06-02. 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 Microsoft Limited (RIPE NCC) on 2025-06-02 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 2025-06-02 19:00 UTC, (no name) (ARIN) to Microsoft Limited (RIPE NCC); resources moved: 138.120.0.0/16 source · retrieved
  2. Before RIPE NCC delegated statistics 2025-06-01 (produced 2025-06-01T21:59:59+00:00), before the change: not listed source · retrieved
  3. After RIPE NCC delegated statistics 2025-06-02 (produced 2025-06-02T21:59:59+00:00), after the change: allocated (dated 2015-05-08) 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
2021-05-27 ARIN Transfer log Merger/acquisition or reorganization Confirmed
Transfer log
Merger/acquisition: Alcatel-Lucent (ARIN) to Nokia of America Corporation (ARIN)
From
Alcatel-Lucent ARIN
To
Nokia of America Corporation ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a merger, acquisition or reorganization from Alcatel-Lucent (ARIN) to Nokia of America Corporation (ARIN) on 2021-05-27 14:13 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 2021-05-27 14:13 UTC, Alcatel-Lucent (ARIN) to Nokia of America Corporation (ARIN); resources moved: 138.120.0.0/16 source · retrieved
  2. Before ARIN delegated statistics 2021-05-26 (produced 2021-05-26T14:00:13+00:00), before the report: assigned (dated 2015-05-08) source · retrieved
  3. After ARIN delegated statistics 2021-05-28 (produced 2021-05-28T14:00:12+00:00), after the report: assigned (dated 2015-05-08) source · retrieved
2015-05-08 ARIN + Add Apparent reissuance of previously removed resource Strong inference
ARIN-Issued
Add 138.120.0.0-138.120.255.255
Inventory
Likely issued from ARIN-controlled inventory

No transfer record matches. ARIN's statistics show it reserved on 2015-05-07 and assigned (dated 2015-05-08) on 2015-05-09. The tracker saw this range released from hold on 2014-01-29 (138.120.0.0-138.120.255.255), 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 2015-05-08: "Add 138.120.0.0-138.120.255.255" source · retrieved
  2. Before ARIN delegated statistics 2015-05-07 (produced 2015-05-07T05:04:48+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2015-05-09 (produced 2015-05-09T05:05:37+00:00), after the report: assigned (dated 2015-05-08) 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
2015-05-08 ARIN − Remove Change to ARIN's own pool record Strong inference
ARIN-Issued
Remove 138.120.0.0-138.120.255.255
Inventory
Part of the issuance reported the same day

ARIN's statistics show it reserved on 2015-05-07 and assigned (dated 2015-05-08) on 2015-05-09. ARIN removed its own pool record for this range as part of issuing it: the same report adds 138.120.0.0-138.120.255.255. The issuance is explained on that line.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2015-05-08: "Remove 138.120.0.0-138.120.255.255" source · retrieved
  2. Before ARIN delegated statistics 2015-05-07 (produced 2015-05-07T05:04:48+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2015-05-09 (produced 2015-05-09T05:05:37+00:00), after the report: assigned (dated 2015-05-08) source · retrieved
Classification history for this change (4 versions)
  1. : Change to ARIN's own pool record, strong inference (classifier 1.3.0)
  2. : Change to ARIN's own pool record, strong inference (classifier 1.3.1)
  3. : Change to ARIN's own pool record, strong inference (classifier 1.3.2)
  4. : Change to ARIN's own pool record, strong inference (classifier 1.4.0) current
2014-01-29 ARIN − Remove Released from hold (ARIN lists it as 'available') Strong inference
ARIN-Issued
Remove 138.120.0.0-138.120.255.255
Inventory
ARIN's statistics now list it as 'available'; reissue not confirmed

ARIN's statistics show it reserved on 2014-01-28 and available on 2014-01-30. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2013-10-30, 91 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2014-01-29: "Remove 138.120.0.0-138.120.255.255" source · retrieved
  2. Before ARIN delegated statistics 2014-01-28 (produced 2014-01-28T06:06:21+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2014-01-30 (produced 2014-01-30T06:06:10+00:00), after the report: available source · retrieved
Classification history for this change (4 versions)
  1. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.0)
  2. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.1)
  3. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.2)
  4. : Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.4.0) current
2013-10-30 ARIN Not in ARIN-Issued Removed (return, revocation or reclamation not publicly distinguishable) Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2013-12-29. Possible reissue candidate after this date; not confirmed available.

Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it assigned (dated 1990-05-14) on 2013-10-29 and reserved on 2013-10-31. Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the estimated hold end is 2013-12-29. This does not confirm availability.

Evidence (3) · classifier 1.4.0,
  1. Statistics Not listed in ARIN-Issued; found by comparing ARIN's daily statistics: 138.120.0.0/16 assigned on 2013-10-30, reserved on 2013-10-31 source · retrieved
  2. Before ARIN delegated statistics 2013-10-29 (produced 2013-10-29T05:06:33+00:00), before the report: assigned (dated 1990-05-14) source · retrieved
  3. After ARIN delegated statistics 2013-10-31 (produced 2013-10-31T05:06:33+00:00), after the report: reserved source · retrieved
Classification history for this change (4 versions)
  1. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.0)
  2. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.1)
  3. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.2)
  4. : Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.4.0) current

Transfer records (3)

Date (UTC)LogTypeRange movedFromTo
RIPE NCCResource transfer138.120.0.0/16 (no name given) ARINMicrosoft Limited RIPE NCC
ARINResource transfer138.120.0.0/16 Nokia of America Corporation ARINMicrosoft Limited RIPE NCC
ARINMerger acquisition138.120.0.0/16 Alcatel-Lucent ARINNokia of America 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/138.120.0.0-138.120.255.255.json