Possible reissue candidate; not confirmed available.
Timeline (2)
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.
2026-11-11RIPE NCCReleasedReleased from hold (the RIPE NCC lists it as 'available')Strong inferenceProvisional
Statistics
193.103.164.0/24 reserved on 2026-11-10, available on 2026-11-11
Inventory
The RIPE NCC's statistics now list it as 'available'; reissue not confirmed
The RIPE NCC's statistics show it reserved on 2026-11-10 and available on 2026-11-11. The RIPE NCC moved it from its reserved (held) records to the status it calls 'available'. The tracker saw it removed from registration on 2021-02-08, 2102 days earlier. That is the RIPE NCC's own label: whether and when it is reissued is not confirmed.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: 193.103.164.0/24 reserved on 2026-11-10, available on 2026-11-11source · retrieved
BeforeRIPE NCC delegated statistics 2026-11-10 (produced 2026-11-10T22:59:59+00:00), before the change: reservedsource · retrieved
AfterRIPE NCC delegated statistics 2026-11-11 (produced 2026-11-11T22:59:59+00:00), after the change: availablesource · retrieved
2021-02-08RIPE NCC− DeregisteredRemoved (return, revocation or reclamation not publicly distinguishable)Strong inference
Statistics
193.103.164.0/24 assigned on 2021-02-07, reserved on 2021-02-08
Inventory
Possible future reissue candidate after hold
Hold estimate
Estimated hold end 2021-08-07. Possible reissue candidate after this date; not confirmed available.
Removed from active registration. The tracker found it by comparing the RIPE NCC's daily statistics. The RIPE NCC's statistics show it assigned (dated 1994-09-27) on 2021-02-07 and reserved on 2021-02-08. Public sources do not distinguish a voluntary return, revocation, or reclamation. The RIPE NCC holds returned, revoked and reclaimed IPv4 space for 180 days (six months), or longer while still routed, before reissuing it, so the estimated hold end is 2021-08-07. This does not confirm availability.
Evidence (3) · classifier 1.4.0,
StatisticsFound by comparing the RIPE NCC's daily statistics: 193.103.164.0/24 assigned on 2021-02-07, reserved on 2021-02-08source · retrieved
BeforeRIPE NCC delegated statistics 2021-02-07 (produced 2021-02-07T22:59:00+00:00), before the change: assigned (dated 1994-09-27)source · retrieved
AfterRIPE NCC delegated statistics 2021-02-08 (produced 2021-02-08T22:59:00+00:00), 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
Looked up
Why
Registry
Handle
Organization
Status
Last changed
First seen
RIPE NCC
193.103.164.0 - 193.103.164.255
lir-ch-netsuisse-1-MNT
active
2026-11-12
Organization-level details only; contact details are never kept. RDAP shows the registration when it was looked up, not in the past.