% 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 '213.235.0.0 - 213.235.63.255'

% Abuse contact for '213.235.0.0 - 213.235.63.255' is 'abuse@gtt.net'

inetnum:        213.235.0.0 - 213.235.63.255
netname:        UK-EASYNET-20000208
country:        GB
org:            ORG-EA49-RIPE
geofeed:        https://geolocation.gtt.net/gtt_geolocation.csv
remarks:        Geofeed https://geolocation.gtt.net/gtt_geolocation.csv
admin-c:        NET3257-RIPE
tech-c:         NET3257-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         EASYNET-UK-MNT
mnt-lower:      AS3257-NET-MNT
mnt-domains:    AS3257-NET-MNT
mnt-routes:     AS3257-ROUTE-MNT
mnt-lower:      AS3257-IPAM-MNT
mnt-routes:     AS8190-MNT
created:        2002-04-26T17:13:16Z
last-modified:  2025-05-05T12:00:09Z
source:         RIPE # Filtered

% Information related to '213.235.0.0/18AS3257'

route:          213.235.0.0/18
descr:          GTT
origin:         AS3257
mnt-by:         AS3257-ROUTE-MNT
created:        2023-02-13T10:37:41Z
last-modified:  2023-02-13T10:37:41Z
source:         RIPE

% Information related to '213.235.0.0/18AS8190'

route:          213.235.0.0/18
descr:          NETCOMUK-NET
origin:         AS8190
mnt-by:         AS8190-MNT
created:        2004-06-14T11:30:51Z
last-modified:  2004-06-14T11:30:51Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.123 (DEXTER)