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.
2011-04-05RIPE NCC+ RegisteredUnresolved changeObserved only
Statistics
31.130.32.0/19 not listed on 2011-04-04, assigned on 2011-04-05
Inventory
Inventory effect unknown
No transfer record matches. The RIPE NCC's statistics show it not listed on 2011-04-04 and assigned (dated 2011-04-04) on 2011-04-05. It wasn't in the RIPE NCC's statistics before, so it wasn't the RIPE NCC's unissued inventory; it may have come from another registry in a transfer not yet in the log.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: 31.130.32.0/19 not listed on 2011-04-04, assigned on 2011-04-05source · retrieved
BeforeRIPE NCC delegated statistics 2011-04-04, before the change: not listedsource · retrieved
AfterRIPE NCC delegated statistics 2011-04-05, after the change: assigned (dated 2011-04-04)source · retrieved
Classification history for this change (4 versions)
: Unresolved change, observed only (classifier 1.3.0)
: Unresolved change, observed only (classifier 1.3.1)
: Unresolved change, observed only (classifier 1.3.2)
: Unresolved change, observed only (classifier 1.4.0) current
Transfer records
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.