rirtracker

IPv4 range · 32,768 addresses

207.174.128.0/17

Now

ARIN statistics
Allocated (38 records, dated 1998-10-06 to 2025-12-08), reserved (1 record) (CA, PR, US), in the latest file
Registry
Not known
Holder
Not looked up

Latest change

− Remove Unresolved change

Reported
2009-03-30 (ARIN)
Confidence
Observed only
Inventory
Inventory effect unknown

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.

2009-03-30 ARIN − Remove Unresolved change Observed only
ARIN-Issued
Remove 207.174.128.0-207.174.255.255
Inventory
Inventory effect unknown

ARIN-Issued says "Remove", but ARIN's statistics show it not issued on 2009-03-29 and allocated (dated 1999-01-28), allocated (dated 1999-02-10), allocated (dated 1999-03-18), allocated (dated 1999-04-20), allocated (dated 1999-11-02), allocated (dated 1999-11-05), allocated (dated 2000-01-21), not issued on 2009-03-31. (Until 2013-03-05, ARIN's statistics list only what's issued.) The registry's pool records from that time aren't public, so the tracker can't tell what was removed.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2009-03-30: "Remove 207.174.128.0-207.174.255.255" source · retrieved
  2. Before ARIN delegated statistics 2009-03-29, before the report: not issued source · retrieved
  3. After ARIN delegated statistics 2009-03-31, after the report: allocated (dated 1999-01-28), allocated (dated 1999-02-10), allocated (dated 1999-03-18), allocated (dated 1999-04-20), allocated (dated 1999-11-02), allocated (dated 1999-11-05), allocated (dated 2000-01-21), not issued source · retrieved
Classification history for this change (4 versions)
  1. : Unresolved change, observed only (classifier 1.3.0)
  2. : Unresolved change, observed only (classifier 1.3.1)
  3. : Unresolved change, observed only (classifier 1.3.2)
  4. : Unresolved change, observed only (classifier 1.4.0) current

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2026-07-13ARIN207.174.172.0/24Not in ARIN-IssuedRemoved
2026-02-25ARIN207.174.130.0/24Transfer logMerger/acquisition
2026-02-25ARIN207.174.137.0/24Transfer logMerger/acquisition
2026-02-25ARIN207.174.138.0/23Transfer logMerger/acquisition
2026-02-25ARIN207.174.140.0/22Transfer logMerger/acquisition
2026-02-25ARIN207.174.157.0/24Transfer logMerger/acquisition
2026-02-25ARIN207.174.175.0/24Transfer logMerger/acquisition
2026-02-25ARIN207.174.201.0/24Transfer logMerger/acquisition
2026-02-25ARIN207.174.202.0/24Transfer logMerger/acquisition
2025-12-08ARIN207.174.200.0/24+ AddApparent new issuance
2025-12-08ARIN207.174.200.0/24− RemoveARIN pool record
2025-10-07ARIN207.174.131.0/24+ AddApparent new issuance
2025-10-07ARIN207.174.131.0/24− RemoveARIN pool record
2025-10-06ARIN207.174.131.0/24− RemoveNo material change
2025-10-06ARIN207.174.200.0/24− RemoveNo material change
2025-10-03ARIN207.174.208.0/23+ AddApparent reissuance
2025-10-03ARIN207.174.208.0/23− RemoveARIN pool record
2025-07-01ARIN207.174.132.0/22+ AddApparent new issuance
2025-07-01ARIN207.174.203.0/24+ AddApparent reissuance
2025-07-01ARIN207.174.203.0/24− RemoveARIN pool record
2024-11-11ARIN207.174.208.0/23Not in ARIN-IssuedRemoved
2024-04-01ARIN207.174.152.0/22+ AddApparent new issuance
2024-03-01ARIN207.174.203.0/24Not in ARIN-IssuedRemoved
2022-01-04ARIN207.174.168.0/22+ AddApparent reissuance
2022-01-04ARIN207.174.168.0/22− RemoveARIN pool record
2021-03-26ARIN207.174.168.0/22Not in ARIN-IssuedRemoved
2020-11-20ARIN207.174.234.0/23+ AddIntra-ARIN transfer
2020-03-25ARIN207.174.220.0/22+ AddApparent reissuance
2020-03-25ARIN207.174.220.0/22− RemoveARIN pool record
2019-11-21ARIN207.174.238.0/24Transfer logMerger/acquisition
2019-11-21ARIN207.174.239.0/24Transfer logMerger/acquisition
2019-08-22ARIN207.174.220.0/22Not in ARIN-IssuedRemoved
2019-04-19ARIN207.174.227.0/24Transfer logMerger/acquisition
2019-04-19ARIN207.174.236.0/24Transfer logMerger/acquisition
2019-04-19ARIN207.174.237.0/24Transfer logMerger/acquisition
2018-10-30ARIN207.174.173.0/24Transfer logMerger/acquisition
2018-10-30ARIN207.174.210.0/23Transfer logMerger/acquisition
2018-10-08ARIN207.174.226.0/24Transfer logMerger/acquisition
2018-07-09ARIN207.174.216.0/22Not in ARIN-IssuedTransfer out of ARIN
2018-07-09RIPE NCC207.174.216.0/22Transfer logTransfer into the RIPE NCC
2017-11-09ARIN207.174.176.0/20Not in ARIN-IssuedTransfer out of ARIN
2017-11-09APNIC207.174.176.0/20Transfer logTransfer into APNIC
2016-10-28ARIN207.174.216.0/22Transfer logMerger/acquisition
2015-11-23ARIN207.174.212.0/22Transfer logMerger/acquisition
2015-06-29ARIN207.174.208.0/23+ AddApparent new issuance
2015-06-29ARIN207.174.208.0/23− RemoveARIN pool record
2015-06-12ARIN207.174.128.0/23+ AddApparent new issuance
2015-06-12ARIN207.174.128.0/23− RemoveARIN pool record
2015-06-10ARIN207.174.158.0/23+ AddApparent new issuance
2015-06-10ARIN207.174.158.0/23− RemoveARIN pool record
2015-04-28ARIN207.174.192.0/22+ AddApparent new issuance
2015-04-28ARIN207.174.192.0/22− RemoveARIN pool record
2015-04-23ARIN207.174.196.0/22+ AddApparent new issuance
2015-04-23ARIN207.174.196.0/22− RemoveARIN pool record
2015-04-21ARIN207.174.220.0/22+ AddApparent new issuance
2015-04-21ARIN207.174.220.0/22− RemoveARIN pool record
2015-04-16ARIN207.174.216.0/22+ AddApparent new issuance
2015-04-14ARIN207.174.144.0/21+ AddApparent new issuance
2015-04-14ARIN207.174.160.0/21+ AddApparent new issuance
2015-03-24ARIN207.174.168.0/22+ AddApparent new issuance

Transfer records (23)

Date (UTC)LogTypeRange movedFromTo
ARINMerger acquisition207.174.130.0/24 Massive Networks ARINMassive Networks, Inc. ARIN
ARINMerger acquisition207.174.137.0/24 Massive Networks ARINMassive Networks, Inc. ARIN
ARINMerger acquisition207.174.138.0/23 Massive Networks ARINMassive Networks, Inc. ARIN
ARINMerger acquisition207.174.140.0/22 Massive Networks ARINMassive Networks, Inc. ARIN
ARINMerger acquisition207.174.157.0/24 Massive Networks ARINMassive Networks, Inc. ARIN
ARINMerger acquisition207.174.175.0/24 Massive Networks ARINMassive Networks, Inc. ARIN
ARINMerger acquisition207.174.201.0/24 Massive Networks ARINMassive Networks, Inc. ARIN
ARINMerger acquisition207.174.202.0/24 Massive Networks ARINMassive Networks, Inc. ARIN
ARINResource transfer207.174.234.0/23 Missouri Network Alliance, LLC ARINEllington Telephone Company ARIN
ARINMerger acquisition207.174.238.0/24 Missouri Network Alliance, LLC ARINHUNTEL.NET ARIN
ARINMerger acquisition207.174.239.0/24 Missouri Network Alliance, LLC ARINHUNTEL.NET ARIN
ARINMerger acquisition207.174.227.0/24 Missouri Network Alliance, LLC ARINGreen Hills Telephone Corporation ARIN
ARINMerger acquisition207.174.236.0/24 Missouri Network Alliance, LLC ARINGreen Hills Telephone Corporation ARIN
ARINMerger acquisition207.174.237.0/24 Missouri Network Alliance, LLC ARINGreen Hills Telephone Corporation ARIN
ARINMerger acquisition207.174.173.0/24 Harland Financial Solutions, Inc. ARINFinastra USA Corporation ARIN
ARINMerger acquisition207.174.210.0/23 Harland Financial Solutions, Inc. ARINFinastra USA Corporation ARIN
ARINMerger acquisition207.174.226.0/24 Missouri Network Alliance, LLC ARINMidwest Data Center, Inc. ARIN
RIPE NCCResource transfer207.174.216.0/22 (no name given) ARINKar-Tel LLC RIPE NCC
ARINResource transfer207.174.216.0/22 Omnico Hosting, LLC ARIN Limited Liability Company ��KaR-Tel�� RIPE NCC
ARINResource transfer207.174.176.0/20 Provider Solutions, Inc. ARINRapid Shield Company LTD APNIC
APNICResource transfer207.174.176.0/20 PROVI-25 ARINRapid Shield Company Limited APNIC
ARINMerger acquisition207.174.216.0/22 NCServ, LLC. ARINOmnico Hosting, LLC ARIN
ARINMerger acquisition207.174.212.0/22 Confluence Networks Inc ARINPDR 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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