% 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 '84.120.0.0 - 84.123.255.255'

% Abuse contact for '84.120.0.0 - 84.123.255.255' is 'abuse@corp.vodafone.es'

inetnum:        84.120.0.0 - 84.123.255.255
netname:        ONO
descr:          Cableuropa - ONO
descr:          ONO net in whole Spain
country:        ES
admin-c:        OIM1-RIPE
tech-c:         OIM1-RIPE
status:         ASSIGNED PA
mnt-by:         ONO-MNT
mnt-lower:      ONO-MNT
mnt-lower:      MNT-HFC-ONO
created:        2004-04-16T09:21:53Z
last-modified:  2021-05-19T08:28:16Z
source:         RIPE # Filtered

role:           VODAFONE ONO IP MANAGER
address:        Avenida de América 115
address:        E-28042 Madrid
address:        SPAIN
phone:          +34 607 13 33 33
nic-hdl:        OIM1-RIPE
mnt-by:         ONO-MNT
created:        2002-09-25T09:49:21Z
last-modified:  2017-10-03T10:07:55Z
source:         RIPE # Filtered

% Information related to '84.121.0.0/16AS6739'

route:          84.121.0.0/16
descr:          Ono
descr:          www.ono.es
descr:          CABLEUROPA S.A.U
descr:          C/ Emisora, 20
descr:          28224 Pozuelo de Alarcón
descr:          Madrid
descr:          SPAIN
origin:         AS6739
mnt-by:         ONO-MNT
created:        2007-02-09T09:04:28Z
last-modified:  2014-04-17T10:02:30Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.116 (ABERDEEN)