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.
2014-01-27ARIN+ AddApparent reissuance of previously removed resourceStrong inference
ARIN-Issued
Add 199.87.168.0-199.87.175.255
Inventory
Likely issued from ARIN-controlled inventory
No transfer record matches. ARIN's statistics show it available on 2014-01-26 and allocated (dated 2014-01-27) on 2014-01-28. The tracker saw this range released from hold on 2014-01-22 (199.87.168.0-199.87.175.255), so it appears to have been issued again from ARIN's pool.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2014-01-27: "Add 199.87.168.0-199.87.175.255"source · retrieved
BeforeARIN delegated statistics 2014-01-26 (produced 2014-01-26T06:04:30+00:00), before the report: availablesource · retrieved
AfterARIN delegated statistics 2014-01-28 (produced 2014-01-28T06:06:21+00:00), after the report: allocated (dated 2014-01-27)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2014-01-22ARIN− RemoveReleased from hold (ARIN lists it as 'available')Strong inference
ARIN-Issued
Remove 199.87.168.0-199.87.175.255
Inventory
ARIN's statistics now list it as 'available'; reissue not confirmed
ARIN's statistics show it reserved on 2014-01-21 and available on 2014-01-23. ARIN took it out of its reserved (held) records; its statistics now give it the status 'available'. The tracker saw it removed from registration on 2013-10-23, 91 days earlier. That is ARIN's own label: whether and when it is reissued is not confirmed.
Evidence (3) · classifier 1.4.0,
ARIN-IssuedARIN-Issued report for 2014-01-22: "Remove 199.87.168.0-199.87.175.255"source · retrieved
BeforeARIN delegated statistics 2014-01-21 (produced 2014-01-21T06:04:04+00:00), before the report: reservedsource · retrieved
AfterARIN delegated statistics 2014-01-23 (produced 2014-01-23T06:04:28+00:00), after the report: availablesource · retrieved
Classification history for this change (4 versions)
: Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.0)
: Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.1)
: Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.3.2)
: Released from hold (ARIN lists it as 'available'), strong inference (classifier 1.4.0) current
2013-10-23ARINNot in ARIN-IssuedRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2013-12-22. 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 assigned (dated 2011-01-31) on 2013-10-22 and reserved on 2013-10-24. 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 2013-12-22. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsNot listed in ARIN-Issued; found by comparing ARIN's daily statistics: 199.87.168.0/21 assigned on 2013-10-23, reserved on 2013-10-24source · retrieved
BeforeARIN delegated statistics 2013-10-22 (produced 2013-10-22T05:05:52+00:00), before the report: assigned (dated 2011-01-31)source · retrieved
AfterARIN delegated statistics 2013-10-24 (produced 2013-10-24T05:06:14+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
2011-01-31ARIN+ AddApparent new issuanceStrong inference
ARIN-Issued
Add 199.87.168.0-199.87.175.255
Inventory
Likely issued from ARIN-controlled inventory
No transfer record matches. ARIN's statistics show it not issued on 2011-01-30 and assigned (dated 2011-01-31) on 2011-02-01. (Until 2013-03-05, ARIN's statistics list only what's issued.) 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 2011-01-31: "Add 199.87.168.0-199.87.175.255"source · retrieved
BeforeARIN delegated statistics 2011-01-30, before the report: not issuedsource · retrieved
AfterARIN delegated statistics 2011-02-01, after the report: assigned (dated 2011-01-31)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
Sold in pieces
3 pieces of this block transferred since 2008-12-01, 50% of it so far.
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.