rirtracker

IPv4 range · 1,024 addresses

81.199.36.0/22

Now

ARIN statistics
Allocated (dated 2022-01-13) (US), in the latest file
Registry
ARIN
Holder
Exxon Mobil Corporation
From
ARIN's latest statistics and the latest transfer record

Latest change

Transfer log Merger/acquisition or reorganization

Reported
2026-08-19 (ARIN)
Confidence
Confirmed
Inventory
No effect on ARIN 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.

2026-08-19 ARIN Transfer log Merger/acquisition or reorganization Confirmed
Transfer log
Merger/acquisition: PIONEER NATURAL RESOURCES USA (ARIN) to Exxon Mobil Corporation (ARIN)
From
PIONEER NATURAL RESOURCES USA ARIN
To
Exxon Mobil Corporation ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a merger, acquisition or reorganization from PIONEER NATURAL RESOURCES USA (ARIN) to Exxon Mobil Corporation (ARIN) on 2026-08-19 13:11 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 2026-08-19 13:11 UTC, PIONEER NATURAL RESOURCES USA (ARIN) to Exxon Mobil Corporation (ARIN); resources moved: 81.199.36.0/22 source · retrieved
  2. Before ARIN delegated statistics 2026-08-18 (produced 2026-08-18T13:00:21+00:00), before the report: allocated (dated 2022-01-13) source · retrieved
  3. After ARIN delegated statistics 2026-08-20 (produced 2026-08-20T13:00:21+00:00), after the report: allocated (dated 2022-01-13) source · retrieved
2022-01-13 ARIN + Add Inter-RIR transfer into ARIN Confirmed
ARIN-Issued
Add 81.199.36.0-81.199.39.255
From
Gilat Telecom Ltd. RIPE NCC
To
PIONEER NATURAL RESOURCES USA ARIN
Same transfer
Also a change at the RIPE NCC, the sending registry: RIPE NCC, 2022-01-13. Lists that cover every registry show it there.
Inventory
Transferred into ARIN administration; not a new issuance

ARIN's transfer log records a transfer from Gilat Telecom Ltd. (RIPE NCC) to PIONEER NATURAL RESOURCES USA (ARIN) on 2022-01-13 14:58 UTC: it came to ARIN from the RIPE NCC. It was already issued by another registry, so this is not a new issuance.

Evidence (4) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2022-01-13: "Add 81.199.36.0-81.199.39.255" source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2022-01-13 14:58 UTC, Gilat Telecom Ltd. (RIPE NCC) to PIONEER NATURAL RESOURCES USA (ARIN); resources moved: 81.199.36.0/22 source · retrieved
  3. Before ARIN delegated statistics 2022-01-12 (produced 2022-01-12T14:00:12+00:00), before the report: not listed source · retrieved
  4. After ARIN delegated statistics 2022-01-14 (produced 2022-01-14T14:00:12+00:00), after the report: allocated (dated 2022-01-13) source · retrieved
Classification history for this change (4 versions)
  1. : Inter-RIR transfer into ARIN, confirmed (classifier 1.3.0)
  2. : Inter-RIR transfer into ARIN, confirmed (classifier 1.3.1)
  3. : Inter-RIR transfer into ARIN, confirmed (classifier 1.3.2)
  4. : Inter-RIR transfer into ARIN, confirmed (classifier 1.4.0) current
2022-01-13 RIPE NCC Transfer log Inter-RIR transfer out of the RIPE NCC Confirmed
Transfer log
Transfer: Gilat Telecom Ltd. (RIPE NCC) to (no name) (ARIN)
From
Gilat Telecom Ltd. RIPE NCC
To
(no name given) ARIN
Same transfer
ARIN recorded it too: ARIN, 2022-01-13.
Piece of
81.199.0.0/16: the rest of the block stayed with the seller
Inventory
Transferred out of RIPE NCC administration; not offered to RIPE NCC applicants

The RIPE NCC's transfer log records a transfer from Gilat Telecom Ltd. (RIPE NCC) to an unnamed organization (ARIN) on 2022-01-13 19:00 UTC: it left the RIPE NCC for ARIN. It is not a new allocation and is not offered to RIPE NCC applicants.

Evidence (3) · classifier 1.4.0,
  1. Transfer log Transfer log: RESOURCE_TRANSFER on 2022-01-13 19:00 UTC, Gilat Telecom Ltd. (RIPE NCC) to (no name) (ARIN); resources moved: 81.199.36.0/22 source · retrieved
  2. Before RIPE NCC delegated statistics 2022-01-12 (produced 2022-01-12T22:59:00+00:00), before the change: allocated (dated 2002-10-07) source · retrieved
  3. After RIPE NCC delegated statistics 2022-01-13 (produced 2022-01-13T22:59:00+00:00), after the change: not listed source · retrieved
Classification history for this change (4 versions)
  1. : Inter-RIR transfer out of the RIPE NCC, confirmed (classifier 1.3.0)
  2. : Inter-RIR transfer out of the RIPE NCC, confirmed (classifier 1.3.1)
  3. : Inter-RIR transfer out of the RIPE NCC, confirmed (classifier 1.3.2)
  4. : Inter-RIR transfer out of the RIPE NCC, confirmed (classifier 1.4.0) current

Transfer records (3)

Date (UTC)LogTypeRange movedFromTo
ARINMerger acquisition81.199.36.0/22 PIONEER NATURAL RESOURCES USA ARINExxon Mobil Corporation ARIN
RIPE NCCResource transfer81.199.36.0/22 Gilat Telecom Ltd. RIPE NCC(no name given) ARIN
ARINResource transfer81.199.36.0/22 Gilat Telecom Ltd. RIPE NCCPIONEER NATURAL RESOURCES USA 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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