% 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 '89.248.29.96 - 89.248.29.127'

% Abuse contact for '89.248.29.96 - 89.248.29.127' is 'abuse@syntura.io'

inetnum:        89.248.29.96 - 89.248.29.127
netname:        HSO-HIGHGATE-SCHOOL
descr:          Highgate School
country:        GB
admin-c:        HS5149-RIPE
tech-c:         HSO1-RIPE
status:         ASSIGNED PA
mnt-by:         HSO-MNT
mnt-lower:      HSO-MNT
mnt-routes:     HSO-MNT
created:        2010-11-17T16:07:45Z
last-modified:  2010-11-17T16:07:45Z
source:         RIPE # Filtered

role:           Syntura Hostmaster
address:        Syntura Group Limited
address:        50 Leman Street
address:        London
address:        E1 8HQ
address:        United Kingdom
phone:          +44 (0)870 112 1122
fax-no:         +44 (0)207 847 4599
admin-c:        APEL1-RIPE
tech-c:         APEL1-RIPE
tech-c:         APEL1-RIPE
nic-hdl:        HSO1-RIPE
abuse-mailbox:  abuse@syntura.io
mnt-by:         HSO-MNT
created:        2002-02-20T14:06:49Z
last-modified:  2026-01-02T13:26:08Z
source:         RIPE # Filtered

person:         highgate school
address:        3 Bishopswood Road
phone:          +442083409193
nic-hdl:        HS5149-RIPE
created:        2010-10-14T12:29:53Z
last-modified:  2020-06-04T11:38:58Z
source:         RIPE
mnt-by:         HSO-MNT

% Information related to '89.248.16.0/20AS20679'

route:          89.248.16.0/20
descr:          hSo: broadband internet, data and
descr:          voice managed services provider.
remarks:        -------------------------------------------
remarks:        For hacking, spamming or security problems
remarks:        send mail to abuse@hso.uk.com
remarks:        -------------------------------------------
origin:         AS20679
mnt-by:         HSO-MNT
created:        2006-06-22T09:05:20Z
last-modified:  2006-06-22T09:05:20Z
source:         RIPE

% Information related to '89.248.16.0/20AS39326'

route:          89.248.16.0/20
descr:          hSo
origin:         AS39326
mnt-by:         GOSCOMB-MNT
created:        2014-02-19T14:58:07Z
last-modified:  2014-02-19T14:58:07Z
source:         RIPE

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