rirtracker

IPv4 range · 8,192 addresses

72.4.64.0/19

Now

ARIN statistics
Allocated (dated 2025-12-19), allocated (dated 2025-12-23) (US), in the latest file
Registry
Not known
Holder
Not looked up

Latest change

Transfer log Merger/acquisition or reorganization

Reported
2019-05-02 (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.

2019-05-02 ARIN Transfer log Merger/acquisition or reorganization Confirmed
Transfer log
Merger/acquisition: Cinergy Communications (ARIN) to Windstream Communications LLC (ARIN)
From
Cinergy Communications ARIN
To
Windstream Communications LLC ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a merger, acquisition or reorganization from Cinergy Communications (ARIN) to Windstream Communications LLC (ARIN) on 2019-05-02 14:42 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 2019-05-02 14:42 UTC, Cinergy Communications (ARIN) to Windstream Communications LLC (ARIN); resources moved: 72.4.64.0/19 source · retrieved
  2. Before ARIN delegated statistics 2019-05-01 (produced 2019-05-01T05:00:13+00:00), before the report: allocated (dated 2004-11-01) source · retrieved
  3. After ARIN delegated statistics 2019-05-03 (produced 2019-05-03T05:00:12+00:00), after the report: allocated (dated 2004-11-01) source · retrieved

Sold in pieces

2 pieces of this block transferred since 2008-12-01, 50% of it so far.

DatePieceWhat happenedFromTo
2025-12-19 72.4.72.0/21Intra-ARIN transfer Windstream Communications LLC ARINLatigo, LLC ARIN
2025-12-23 72.4.88.0/21Intra-ARIN transfer Windstream Communications LLC ARINServaxNet, LLC ARIN

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2026-02-19RIPE NCC72.4.64.0/21Transfer logTransfer into the RIPE NCC
2026-02-19ARIN72.4.64.0/21Not in ARIN-IssuedTransfer out of ARIN
2026-02-18RIPE NCC72.4.80.0/21Transfer logTransfer into the RIPE NCC
2026-02-18ARIN72.4.80.0/21Not in ARIN-IssuedTransfer out of ARIN
2025-12-23ARIN72.4.88.0/21+ AddIntra-ARIN transfer
2025-12-19ARIN72.4.72.0/21+ AddIntra-ARIN transfer

Transfer records (7)

Date (UTC)LogTypeRange movedFromTo
RIPE NCCResource transfer72.4.64.0/21 (no name given) ARINMikhail Fedorov RIPE NCC
ARINResource transfer72.4.64.0/21 Windstream Communications LLC ARINMikhail Fedorov RIPE NCC
RIPE NCCResource transfer72.4.80.0/21 (no name given) ARINEons Data Communications Limited RIPE NCC
ARINResource transfer72.4.80.0/21 Windstream Communications LLC ARINEons Data Communications Limited RIPE NCC
ARINResource transfer72.4.88.0/21 Windstream Communications LLC ARINServaxNet, LLC ARIN
ARINResource transfer72.4.72.0/21 Windstream Communications LLC ARINLatigo, LLC ARIN
ARINMerger acquisition72.4.64.0/19 Cinergy Communications ARINWindstream Communications LLC 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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