rirtracker

IPv4 range · 5 prefixes · 4,352 addresses

207.174.158.0 - 207.174.174.255

207.174.158.0/23, 207.174.160.0/21, 207.174.168.0/22, 207.174.172.0/23, 207.174.174.0/24

Now

ARIN statistics
Allocated (dated 1998-10-06), allocated (dated 2012-03-12), allocated (dated 2015-04-14), allocated (dated 2015-06-10), allocated (dated 2022-01-04), reserved (CA, US), in the latest file
Registry
Not known
Holder
Not looked up

Latest change

− Remove Unresolved change

Reported
2009-04-01 (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.

2009-04-01 ARIN − Remove Unresolved change Observed only
ARIN-Issued
Remove 207.174.158.0-207.174.174.255
Inventory
Inventory effect unknown

ARIN-Issued says "Remove", but ARIN's statistics show it not issued on 2009-03-31 and allocated (dated 1998-10-06), not issued on 2009-04-02. (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 2009-04-01: "Remove 207.174.158.0-207.174.174.255" source · retrieved
  2. Before ARIN delegated statistics 2009-03-31, before the report: not issued source · retrieved
  3. After ARIN delegated statistics 2009-04-02, after the report: allocated (dated 1998-10-06), 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
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
2018-10-30ARIN207.174.173.0/24Transfer logMerger/acquisition
2015-06-10ARIN207.174.158.0/23+ AddApparent new issuance
2015-06-10ARIN207.174.158.0/23− RemoveARIN pool record
2015-04-14ARIN207.174.160.0/21+ AddApparent new issuance
2015-03-24ARIN207.174.168.0/22+ AddApparent new issuance
2015-03-24ARIN207.174.168.0/22− RemoveARIN pool record
2015-03-20ARIN207.174.168.0/22− RemoveARIN pool record
2012-03-12ARIN207.174.172.0/24+ AddApparent new issuance
2012-03-12ARIN207.174.174.0/24+ AddApparent new issuance
2010-04-02ARIN207.174.158.0 - 207.174.172.255− RemoveUnresolved
2010-04-02ARIN207.174.174.0/24− RemoveUnresolved
2009-03-30ARIN207.174.128.0/17− RemoveUnresolved

Transfer records (1)

Date (UTC)LogTypeRange movedFromTo
ARINMerger acquisition207.174.173.0/24 Harland Financial Solutions, Inc. ARINFinastra USA 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/207.174.158.0-207.174.174.255.json