% 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 http://www.ripe.net/db/support/db-terms-conditions.pdf

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '188.238.128.0 - 188.238.255.255'

% Abuse contact for '188.238.128.0 - 188.238.255.255' is 'abuse@telia.fi'

inetnum:        188.238.128.0 - 188.238.255.255
netname:        TELIA-FI-PP-MS-NET
descr:          Telia Finland Oyj
descr:          Mobility Services
descr:          Helsinki
country:        FI
admin-c:        HH16792-RIPE
tech-c:         HH16792-RIPE
status:         ASSIGNED PA
remarks:        INFRA-AW
mnt-by:         DATANET-NOC
created:        2011-02-11T13:07:50Z
last-modified:  2022-01-10T08:41:16Z
source:         RIPE # Filtered

person:         Harri Hiltunen
address:        Teollisuuskatu 15
address:        00051 TELIA
address:        FINLAND
phone:          +358 2040 1
nic-hdl:        HH16792-RIPE
mnt-by:         DATANET-NOC
created:        1970-01-01T00:00:00Z
last-modified:  2018-08-13T12:01:16Z
source:         RIPE

% Information related to '188.238.0.0/16AS1759'

route:          188.238.0.0/16
descr:          DN-188238-BLOCK
descr:          Telia Finland Oyj
origin:         AS1759
remarks:        --------------------------------------------------------
remarks:        In case of spam & abuse, please try to contact:
remarks:        1. abuse/contact address mentioned in the inetnum object
remarks:        or
remarks:        2. abuse@telia.fi
remarks:        --------------------------------------------------------
mnt-by:         DATANET-NOC
mnt-routes:     DATANET-NOC
created:        2011-02-11T11:38:54Z
last-modified:  2022-06-08T10:45:02Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.107 (ABERDEEN)

Search for
IP address lookups			Miscellaneous queries
-l	1st level less specific		-i	Inverse attributes	None admin-c admin-c,tech-c,zone-c author cross-mnt cross-nfy local-as mbrs-by-ref member-of mnt-by mnt-lower mnt-nfy mnt-routes notify nserver origin person referral-by rev-srv sub-dom tech-c upd-to zone-c
-L	All less specific		-T	Object types	All as-block as-set aut-num domain filter-set inet-rtr inet6num inetnum irt key-cert mntner peering-set person role route route-set rtr-set
-m	1st level more specific
-M	All more specific		Query hints Include "AS" in front of an AS number. Example: AS4808 Include "-t" (template only) or "-v" (template and description) in front of an object name to view the template Example: -t inetnum
-x	Exact match only
-d	Associated reverse domain