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.
2016-04-18AFRINIC+ RegisteredApparent new issuanceStrong inference
Statistics
66.251.128.0/18 available on 2016-04-18, allocated on 2016-04-19
Inventory
Likely issued from AFRINIC-controlled inventory
No transfer record matches. AFRINIC's statistics show it available on 2016-04-18 and allocated (dated 2016-04-18) on 2016-04-19. It moved from AFRINIC's unissued pool to an active registration dated around that day, so it appears to be newly issued by AFRINIC.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing AFRINIC's daily statistics: 66.251.128.0/18 available on 2016-04-18, allocated on 2016-04-19source · retrieved
BeforeAFRINIC delegated statistics 2016-04-18, before the change: availablesource · retrieved
AfterAFRINIC delegated statistics 2016-04-19, after the change: allocated (dated 2016-04-18)source · retrieved
Classification history for this change (4 versions)
: Apparent new issuance, strong inference (classifier 1.3.0)
: Apparent new issuance, strong inference (classifier 1.3.1)
: Apparent new issuance, strong inference (classifier 1.3.2)
: Apparent new issuance, strong inference (classifier 1.4.0) current
2011-12-29ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2012-02-27. Possible reissue candidate after this date; not confirmed available.
Removed from active registration. ARIN-Issued didn't list this; the tracker found it by comparing ARIN's daily statistics. ARIN's statistics show it allocated (dated 2004-01-06) on 2011-12-28 and not issued on 2011-12-30. (Until 2013-03-05, ARIN's statistics list only what's issued.) Public sources do not distinguish a voluntary return, revocation, or reclamation. ARIN holds returned, revoked and reclaimed IPv4 space for 60 days before reissuing it, so the estimated hold end is 2012-02-27. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: 66.251.128.0/18 allocated on 2011-12-29, not listed on 2011-12-30source · retrieved
BeforeARIN delegated statistics 2011-12-28, before the report: allocated (dated 2004-01-06)source · retrieved
AfterARIN delegated statistics 2011-12-30, after the report: not issuedsource · retrieved
Classification history for this change (4 versions)
: Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.0)
: Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.1)
: Removed (return, revocation or reclamation not publicly distinguishable), strong inference (classifier 1.3.2)
: Removed (return, revocation or reclamation not publicly distinguishable), strong inference (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.