% 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 '2001:720:410::/48'

% Abuse contact for '2001:720:410::/48' is 'cert@iriscert.es'

inet6num:       2001:720:410::/48
netname:        UC3M
descr:          Universidad Carlos III
descr:          Madrid
country:        ES
admin-c:        IB4483-RIPE
tech-c:         JJL4
abuse-c:        IRIS5-RIPE
status:         ASSIGNED
mnt-by:         REDIRIS-NMC
mnt-irt:        IRT-IRISCERT
remarks:        Incident handling for organizations affiliated with RedIRIS
remarks:        Spanish Academic and Research Network.
remarks:        emergency phone number +34 647 300 717
remarks:        timezone GMT+01 (GMT+02 with DST)
remarks:        use cert@iriscert.es for security, spam and abuse notifications
created:        2005-10-10T06:42:46Z
last-modified:  2025-04-11T12:55:29Z
source:         RIPE # Filtered

person:         Isabel Barro
address:        Universidad Carlos III de Madrid
address:        Madrid, 167-168
address:        Getafe (Madrid)
address:        SPAIN
phone:          +34 916249992
fax-no:         +34 916249430
nic-hdl:        IB4483-RIPE
mnt-by:         REDIRIS-NMC
created:        2015-02-13T10:45:35Z
last-modified:  2017-10-30T22:44:10Z
source:         RIPE # Filtered

person:         Jose Juan Lopez
address:        Universidad Carlos III de Madrid
address:        Madrid, 167-168
address:        Getafe (Madrid)
address:        SPAIN
phone:          +34 916249961
fax-no:         +34 916249430
nic-hdl:        JJL4
mnt-by:         REDIRIS-NMC
created:        1970-01-01T00:00:00Z
last-modified:  2017-10-30T21:44:30Z
source:         RIPE # Filtered

% Information related to '2001:720::/32AS766'

route6:         2001:720::/32
descr:          RedIRIS
origin:         AS766
mnt-by:         REDIRIS-NMC
created:        2005-10-10T06:42:54Z
last-modified:  2005-10-10T06:42:54Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.120 (DEXTER)