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.
ARIN's transfer log records a transfer from ColoMX LLC (ARIN) to Sneaker Server, LLC (ARIN) on 2020-10-19 19:05 UTC. ARIN-Issued lists it as "Add" because the registration changed hands; it is not a new allocation from ARIN.
Evidence (4) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2020-10-19: "Add 104.171.160.0-104.171.175.255"source · retrieved
Transfer logTransfer log: RESOURCE_TRANSFER on 2020-10-19 19:05 UTC, ColoMX LLC (ARIN) to Sneaker Server, LLC (ARIN); resources moved: 104.171.160.0/20source · retrieved
BeforeARIN delegated statistics 2020-10-18 (produced 2020-10-18T14:00:14+00:00), before the report: allocated (dated 2014-09-15)source · retrieved
AfterARIN delegated statistics 2020-10-20 (produced 2020-10-20T14:00:14+00:00), after the report: allocated (dated 2020-10-19)source · retrieved
Classification history for this change (4 versions)
: Intra-ARIN transfer, confirmed (classifier 1.4.0) current
2016-05-10ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2016-07-09. 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 2014-09-15) on 2016-05-09 and reserved on 2016-05-11. 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 2016-07-09. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: 104.171.160.0/20 allocated on 2016-05-10, reserved on 2016-05-11source · retrieved
BeforeARIN delegated statistics 2016-05-09 (produced 2016-05-09T05:05:03+00:00), before the report: allocated (dated 2014-09-15)source · retrieved
AfterARIN delegated statistics 2016-05-11 (produced 2016-05-11T05:05:06+00:00), after the report: reservedsource · 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
2014-09-15ARIN+ AddApparent new issuanceStrong inference
ARIN-Issued
Add 104.171.160.0-104.171.175.255
Inventory
Likely issued from ARIN-controlled inventory
No transfer record matches. ARIN's statistics show it available on 2014-09-14 and allocated (dated 2014-09-15) on 2014-09-16. It moved from ARIN's unissued pool to an active registration dated around the report, so it appears to be newly issued by ARIN.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2014-09-15: "Add 104.171.160.0-104.171.175.255"source · retrieved
BeforeARIN delegated statistics 2014-09-14 (produced 2014-09-14T05:04:58+00:00), before the report: availablesource · retrieved
AfterARIN delegated statistics 2014-09-16 (produced 2014-09-16T05:05:03+00:00), after the report: allocated (dated 2014-09-15)source · retrieved
Classification history for this change (4 versions)
: Apparent new issuance, strong inference (classifier 1.3.2)
: Apparent new issuance, strong inference (classifier 1.4.0) current
Transfer records (1)
Date (UTC)
Log
Type
Range moved
From
To
ARIN
Resource transfer
104.171.160.0/20
ColoMX LLC ARIN
Sneaker Server, LLC ARIN
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.