% APNIC found the following authoritative answer from: whois.ripe.net

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to 'AS203940 - AS205662'

as-block:       AS203940 - AS205662
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2026-03-05T15:29:31Z
last-modified:  2026-03-05T15:29:31Z
source:         RIPE

% Information related to 'AS204821'

% Abuse contact for 'AS204821' is 'abuse@sinofibre.co.uk'

aut-num:        AS204821
as-name:        Sinofibre
descr:          Sinofibre Broadband
org:            ORG-SL1394-RIPE
sponsoring-org: ORG-CL826-RIPE
import:         from AS48266 accept ANY
export:         to AS48266 announce AS204821
import:         from AS174 accept ANY
export:         to AS174 announce AS204821
admin-c:        AA46144-RIPE
tech-c:         AA46144-RIPE
abuse-c:        AA46144-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         Sinofibre-MNT
created:        2026-01-21T11:23:14Z
last-modified:  2026-01-30T16:50:09Z
source:         RIPE

organisation:   ORG-SL1394-RIPE
org-name:       Sinofibre Limited
org-type:       OTHER
address:        6 Watergate Walk, London, E14 9UT
country:        GB
reg-nr:         16879615
abuse-c:        AA46144-RIPE
mnt-ref:        lir-uk-catixs-ltd-1-MNT
created:        2026-01-16T17:03:07Z
last-modified:  2026-05-13T05:41:23Z
source:         RIPE # Filtered
mnt-by:         Sinofibre-MNT

role:           Admin
address:        6 Watergate Walk, London, E14 9UT
abuse-mailbox:  abuse@sinofibre.co.uk
nic-hdl:        AA46144-RIPE
mnt-by:         Sinofibre-MNT
created:        2026-01-16T16:59:11Z
last-modified:  2026-01-16T17:02:52Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.122.1 (BUSA)