% 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 '51.199.0.0 - 51.199.127.255'

% Abuse contact for '51.199.0.0 - 51.199.127.255' is 'abuse@sky.uk'

inetnum:        51.199.0.0 - 51.199.127.255
descr:          SKY UK Limited
org:            ORG-EL37-RIPE
remarks:        Please send abuse notification to abuse@sky.uk
netname:        SKY-BROADBAND
geofeed:        https://geofeed.net.sky/geofeed.csv
country:        IE
admin-c:        BBH-RIPE
tech-c:         BBH-RIPE
status:         ASSIGNED PA
mnt-by:         BSKYB-BROADBAND-MNT
created:        2023-05-15T10:54:13Z
last-modified:  2025-03-12T09:53:06Z
source:         RIPE # Filtered

% Information related to '51.199.0.0/17AS5607'

route:          51.199.0.0/17
origin:         AS5607
mnt-by:         BSKYB-BROADBAND-MNT
created:        2023-05-17T10:17:24Z
last-modified:  2023-05-17T10:17:24Z
source:         RIPE # Filtered
descr:          Sky Broadband

% This query was served by the RIPE Database Query Service version 1.124.1 (SHETLAND)