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.
2015-02-20ARIN− RemoveChange to ARIN's own pool recordStrong inference
ARIN-Issued
Remove 192.151.130.0-192.151.131.255
Inventory
Part of the issuance reported the same day
ARIN's statistics show it reserved on 2015-02-19 and assigned (dated 2015-02-20), available on 2015-02-21. ARIN removed its own pool record for this range as part of issuing it: the same report adds 192.151.130.0-192.151.130.255. The issuance is explained on that line.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2015-02-20: "Remove 192.151.130.0-192.151.131.255"source · retrieved
BeforeARIN delegated statistics 2015-02-19 (produced 2015-02-19T06:05:12+00:00), before the report: reservedsource · retrieved
AfterARIN delegated statistics 2015-02-21 (produced 2015-02-21T06:05:18+00:00), after the report: assigned (dated 2015-02-20), availablesource · retrieved
Classification history for this change (4 versions)
: Change to ARIN's own pool record, strong inference (classifier 1.3.0)
: Change to ARIN's own pool record, strong inference (classifier 1.3.1)
: Change to ARIN's own pool record, strong inference (classifier 1.3.2)
: Change to ARIN's own pool record, strong inference (classifier 1.4.0) current
No transfer log has a transfer of any part of this IPv4 range.
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.