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.
2013-10-07ARIN+ AddRegistration or organization record changeStrong inference
ARIN-Issued
Add 168.151.72.0-168.151.143.255
Inventory
No effect on ARIN applicant inventory
No transfer record matches. ARIN's statistics show it assigned (dated 1994-04-04) on 2013-10-06 and assigned (dated 2013-10-07) on 2013-10-08. The holder's record is the same before and after, so this is a change to the registration, not a change of holder.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2013-10-07: "Add 168.151.72.0-168.151.143.255"source · retrieved
BeforeARIN delegated statistics 2013-10-06 (produced 2013-10-06T05:08:13+00:00), before the report: assigned (dated 1994-04-04)source · retrieved
AfterARIN delegated statistics 2013-10-08 (produced 2013-10-08T05:03:56+00:00), after the report: assigned (dated 2013-10-07)source · retrieved
Classification history for this change (4 versions)
: Registration or organization record change, strong inference (classifier 1.3.0)
: Registration or organization record change, strong inference (classifier 1.3.1)
: Registration or organization record change, strong inference (classifier 1.3.2)
: Registration or organization record change, strong inference (classifier 1.4.0) current
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.