rirtracker

IPv4 range · 1,024 addresses

172.84.156.0/22

Now

ARIN statistics
Allocated (dated 2018-01-17), allocated (dated 2018-01-23), allocated (dated 2018-02-22), allocated (dated 2018-02-23) (US), in the latest file
Registry
ARIN
Holder
Not looked up
From
ARIN's latest statistics

Latest change

− Remove No substantive resource change found

Reported
2018-01-13 (ARIN)
Confidence
Strong inference
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.

2018-01-13 ARIN − Remove No substantive resource change found Strong inference
ARIN-Issued
Remove 172.84.156.0-172.84.159.255
Inventory
No effect on ARIN applicant inventory

ARIN-Issued lists it as "Remove", but ARIN's statistics show the same record before and after (reserved).

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2018-01-13: "Remove 172.84.156.0-172.84.159.255" source · retrieved
  2. Before ARIN delegated statistics 2018-01-12 (produced 2018-01-12T06:09:18+00:00), before the report: reserved source · retrieved
  3. After ARIN delegated statistics 2018-01-14 (produced 2018-01-14T06:10:46+00:00), after the report: reserved source · retrieved
Classification history for this change (4 versions)
  1. : No substantive resource change found, strong inference (classifier 1.3.0)
  2. : No substantive resource change found, strong inference (classifier 1.3.1)
  3. : No substantive resource change found, strong inference (classifier 1.3.2)
  4. : No substantive resource change found, strong inference (classifier 1.4.0) current

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2021-03-18ARIN172.84.156.0/24Transfer logMerger/acquisition
2018-02-23ARIN172.84.158.0/24+ AddApparent new issuance
2018-02-23ARIN172.84.158.0/24− RemoveARIN pool record
2018-02-22ARIN172.84.156.0/24+ AddApparent new issuance
2018-02-22ARIN172.84.156.0/24− RemoveARIN pool record
2018-01-23ARIN172.84.157.0/24+ AddApparent new issuance
2018-01-23ARIN172.84.157.0/24− RemoveARIN pool record
2018-01-17ARIN172.84.159.0/24+ AddApparent new issuance
2018-01-17ARIN172.84.159.0/24− RemoveARIN pool record

Transfer records (1)

Date (UTC)LogTypeRange movedFromTo
ARINMerger acquisition172.84.156.0/24 Seventy Seven Energy ARINPatterson-UTI Management Services, 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.

This page as data: ip/172.84.156.0-172.84.159.255.json