% 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 '91.135.156.0 - 91.135.157.255'

% Abuse contact for '91.135.156.0 - 91.135.157.255' is 'admin@golnet.ru'

inetnum:        91.135.156.0 - 91.135.157.255
netname:        GOLNET-TELECOM-NET
org:            ORG-GTL51-RIPE
descr:          OOO GOLNET TELECOM
country:        RU
admin-c:        OVM40-RIPE
tech-c:         OVM40-RIPE
status:         ASSIGNED PA
mnt-by:         WESTCALL-MNT
created:        2023-03-16T06:04:58Z
last-modified:  2023-04-28T07:43:02Z
source:         RIPE

organisation:   ORG-GTL51-RIPE
org-name:       Golnet Telecom LLC
org-type:       OTHER
address:        Habarovskaya str., 8, 60
address:        Moscow, Russia
abuse-c:        ACRO52615-RIPE
mnt-ref:        GOLNET-TELECOM-MNT
mnt-by:         GOLNET-TELECOM-MNT
created:        2023-04-28T07:09:07Z
last-modified:  2023-04-28T07:09:07Z
source:         RIPE # Filtered

person:         Oleg V. Malov
address:        Ussuriyskaya str., 9, Russia, Moscow
phone:          +74959505719
nic-hdl:        OVM40-RIPE
mnt-by:         GOLNET-TELECOM-MNT
created:        2023-04-28T06:25:50Z
last-modified:  2023-04-28T07:02:41Z
source:         RIPE # Filtered

% Information related to '91.135.156.0/23AS50513'

route:          91.135.156.0/23
descr:          route for GOLNET-TELECOM network
origin:         AS50513
mnt-by:         WESTCALL-MNT
created:        2022-04-01T15:34:06Z
last-modified:  2022-04-01T15:34:06Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.114 (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