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.
2025-09-10APNIC+ RegisteredApparent reissuance of previously removed resourceStrong inference
Statistics
203.30.221.0/24 available on 2025-09-10, assigned on 2025-09-11
Inventory
Likely issued from APNIC-controlled inventory
No transfer record matches. APNIC's statistics show it available on 2025-09-10 and assigned (dated 2025-09-10) on 2025-09-11. The tracker saw this range released from hold on 2020-08-03 (203.30.221.0/24), so it appears to have been issued again from APNIC's pool.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing APNIC's daily statistics: 203.30.221.0/24 available on 2025-09-10, assigned on 2025-09-11source · retrieved
BeforeAPNIC delegated statistics 2025-09-10, before the change: availablesource · retrieved
AfterAPNIC delegated statistics 2025-09-11, after the change: assigned (dated 2025-09-10)source · retrieved
Classification history for this change (4 versions)
: Apparent reissuance of previously removed resource, strong inference (classifier 1.4.0) current
2020-08-03APNICReleasedReleased from hold (APNIC lists it as 'available')Strong inference
Statistics
203.30.221.0/24 reserved on 2020-08-03, available on 2020-08-04
Inventory
APNIC's statistics now list it as 'available'; reissue not confirmed
APNIC's statistics show it reserved on 2020-08-03 and available on 2020-08-04. APNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2011-05-09, 3374 days earlier. That is APNIC's own label: whether and when it is reissued is not confirmed.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing APNIC's daily statistics: 203.30.221.0/24 reserved on 2020-08-03, available on 2020-08-04source · retrieved
BeforeAPNIC delegated statistics 2020-08-03, before the change: reservedsource · retrieved
AfterAPNIC delegated statistics 2020-08-04, after the change: availablesource · retrieved
Classification history for this change (4 versions)
: Released from hold (APNIC lists it as 'available'), strong inference (classifier 1.3.0)
: Released from hold (APNIC lists it as 'available'), strong inference (classifier 1.3.1)
: Released from hold (APNIC lists it as 'available'), strong inference (classifier 1.3.2)
: Released from hold (APNIC lists it as 'available'), strong inference (classifier 1.4.0) current
2011-05-09APNIC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
203.30.221.0/24 assigned on 2011-05-09, reserved on 2011-05-10
Inventory
Possible future reissue candidate after hold
Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it assigned (dated 1996-09-05) on 2011-05-09 and reserved on 2011-05-10. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no hold period, and its statistics show a steady one (a year) only for removals from 2014-07-01 on; this one came earlier, so the tracker gives no estimate. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing APNIC's daily statistics: 203.30.221.0/24 assigned on 2011-05-09, reserved on 2011-05-10source · retrieved
BeforeAPNIC delegated statistics 2011-05-09, before the change: assigned (dated 1996-09-05)source · retrieved
AfterAPNIC delegated statistics 2011-05-10, after the change: 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
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.