rirtracker

IPv4 range · 65,536 addresses

216.172.0.0/16

Now

ARIN statistics
Allocated (dated 2011-06-21), allocated (dated 2011-06-27), allocated (dated 2011-06-28), allocated (dated 2011-06-30), allocated (dated 2011-07-05), allocated (dated 2011-07-06), allocated (dated 2011-07-11), allocated (dated 2011-07-12) (CA, US), in the latest file
Registry
Not known
Holder
Not looked up

Latest change

− Remove Unresolved change

Reported
2011-06-11 (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.

2011-06-11 ARIN − Remove Unresolved change Observed only
ARIN-Issued
Remove 216.172.0.0-216.172.255.255
Inventory
Inventory effect unknown

ARIN-Issued says "Remove", but ARIN's statistics show it not issued on 2011-06-10 and not issued on 2011-06-12. (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 2011-06-11: "Remove 216.172.0.0-216.172.255.255" source · retrieved
  2. Before ARIN delegated statistics 2011-06-10, before the report: not issued source · retrieved
  3. After ARIN delegated statistics 2011-06-12, after the report: 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
2026-04-07ARIN216.172.128.0/19Transfer logMerger/acquisition
2019-05-02ARIN216.172.16.0/20Transfer logMerger/acquisition
2018-04-06ARIN216.172.96.0/20Transfer logMerger/acquisition
2017-10-18ARIN216.172.96.0/20Transfer logMerger/acquisition
2017-04-07ARIN216.172.48.0/20Transfer logMerger/acquisition
2017-01-06ARIN216.172.32.0/20Transfer logMerger/acquisition
2016-12-08ARIN216.172.64.0/20Not in ARIN-IssuedTransfer out of ARIN
2016-12-08RIPE NCC216.172.64.0/20Transfer logTransfer into the RIPE NCC
2014-11-04ARIN216.172.0.0/20Not in ARIN-IssuedRemoved
2011-07-12ARIN216.172.112.0/20+ AddApparent new issuance
2011-07-11ARIN216.172.80.0/20+ AddApparent new issuance
2011-07-11ARIN216.172.96.0/20+ AddApparent new issuance
2011-07-07ARIN216.172.64.0/20+ AddApparent new issuance
2011-07-06ARIN216.172.48.0/20+ AddApparent new issuance
2011-07-05ARIN216.172.16.0/20+ AddApparent new issuance
2011-07-05ARIN216.172.32.0/20+ AddApparent new issuance
2011-06-30ARIN216.172.0.0/20+ AddApparent new issuance
2011-06-28ARIN216.172.160.0/19+ AddApparent new issuance
2011-06-27ARIN216.172.192.0/18+ AddApparent new issuance
2011-06-21ARIN216.172.128.0/19+ AddApparent new issuance

Transfer records (8)

Date (UTC)LogTypeRange movedFromTo
ARINMerger acquisition216.172.128.0/19 EGIHosting ARINSubnet Digital LLC ARIN
ARINMerger acquisition216.172.16.0/20 Business Only Broadband ARINWindstream Communications LLC ARIN
ARINMerger acquisition216.172.96.0/20 zColo ARINzColo ARIN
ARINMerger acquisition216.172.96.0/20 EBL Global Networks, Inc. ARINzColo ARIN
ARINMerger acquisition216.172.48.0/20 Serverel ARINServerel Inc. ARIN
ARINMerger acquisition216.172.32.0/20 Rogers Cable Communications Inc. ARINRogers Communications Canada Inc. ARIN
RIPE NCCResource transfer216.172.64.0/20 (no name given) ARINExpereo International BV RIPE NCC
ARINResource transfer216.172.64.0/20 Monte Carlo Online llc ARINExpereo International BV RIPE NCC

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/216.172.0.0-216.172.255.255.json