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.
2026-10-23APNIC+ RegisteredApparent reissuance of previously removed resourceStrong inference
Statistics
203.170.25.0/24 available on 2026-10-23, assigned on 2026-10-24
Inventory
Likely issued from APNIC-controlled inventory
No transfer record matches. APNIC's statistics show it available on 2026-10-23 and assigned (dated 2026-10-23) on 2026-10-24. The tracker saw this range released from hold on 2022-12-07 (203.170.25.0/24), 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: 203.170.25.0/24 available on 2026-10-23, assigned on 2026-10-24source · retrieved
BeforeAPNIC delegated statistics 2026-10-23, before the change: availablesource · retrieved
AfterAPNIC delegated statistics 2026-10-24, after the change: assigned (dated 2026-10-23)source · retrieved
2022-12-07APNICReleasedReleased from hold (APNIC lists it as 'available')Strong inference
Statistics
203.170.25.0/24 reserved on 2022-12-07, available on 2022-12-08
Inventory
APNIC's statistics now list it as 'available'; reissue not confirmed
APNIC's statistics show it reserved on 2022-12-07 and available on 2022-12-08. APNIC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2021-11-30, 372 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: 203.170.25.0/24 reserved on 2022-12-07, available on 2022-12-08source · retrieved
BeforeAPNIC delegated statistics 2022-12-07, before the change: reservedsource · retrieved
AfterAPNIC delegated statistics 2022-12-08, 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
2021-11-30APNIC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
203.170.25.0/24 assigned on 2021-11-30, reserved on 2021-12-01
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2022-11-30. Possible reissue candidate after this date; not confirmed available.
Removed from active registration. The tracker found it by comparing APNIC's daily statistics. APNIC's statistics show it assigned (dated 2008-11-26) on 2021-11-30 and reserved on 2021-12-01. Public sources do not distinguish a voluntary return, revocation, or reclamation. APNIC publishes no hold period, but its statistics have released returned IPv4 space a year after the removal or later since 2014, so the tracker estimates the hold ends on 2022-11-30. That is what APNIC has done, not a rule it states. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing APNIC's daily statistics: 203.170.25.0/24 assigned on 2021-11-30, reserved on 2021-12-01source · retrieved
BeforeAPNIC delegated statistics 2021-11-30, before the change: assigned (dated 2008-11-26)source · retrieved
AfterAPNIC delegated statistics 2021-12-01, 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
2008-11-26APNIC+ RegisteredUnresolved changeObserved only
Statistics
203.170.25.0/24 not listed on 2008-11-26, assigned on 2008-11-27
Inventory
Inventory effect unknown
No transfer record matches. APNIC's statistics show it not listed on 2008-11-26 and assigned (dated 2008-11-26) on 2008-11-27. It wasn't in APNIC's statistics before, so it wasn't APNIC'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 APNIC's daily statistics: 203.170.25.0/24 not listed on 2008-11-26, assigned on 2008-11-27source · retrieved
BeforeAPNIC delegated statistics 2008-11-26, before the change: not listedsource · retrieved
AfterAPNIC delegated statistics 2008-11-27, after the change: assigned (dated 2008-11-26)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
Looked up
Why
Registry
Handle
Organization
Status
Last changed
After 7 days
idnic.rdap.apnic.net
0.0.0.0 - 255.255.255.255
active
2018-10-23
After 24 hours
idnic.rdap.apnic.net
0.0.0.0 - 255.255.255.255
active
2018-10-23
First seen
APNIC
203.170.25.0 - 203.170.25.255
active
2026-10-23
Organization-level details only; contact details are never kept. RDAP shows the registration when it was looked up, not in the past.