% 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://apps.db.ripe.net/docs/HTML-Terms-And-Conditions

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

% Information related to '146.158.96.0 - 146.158.127.255'

% Abuse contact for '146.158.96.0 - 146.158.127.255' is 'abuse@sm117.ru'

inetnum:        146.158.96.0 - 146.158.127.255
netname:        SIBMEDVED-NET
country:        RU
geoloc:         54.9833 82.8964
org:            ORG-LS491-RIPE
admin-c:        NC5709-RIPE
tech-c:         NC5709-RIPE
status:         ASSIGNED PA
mnt-by:         RIPE-DB-MNT
mnt-lower:      RIPE-DB-MNT
mnt-domains:    RIPE-DB-MNT
mnt-routes:     RIPE-DB-MNT
created:        2023-01-10T17:54:29Z
last-modified:  2023-04-06T06:09:19Z
source:         RIPE

organisation:   ORG-LS491-RIPE
org-name:       SM Ltd.
country:        RU
org-type:       OTHER
address:        58 Voskhod st
address:        Russian Federation, Novosibirskaya oblast, Novosibirsk
admin-c:        NC5709-RIPE
tech-c:         NC5709-RIPE
abuse-c:        NC5709-RIPE
mnt-ref:        RIPE-DB-MNT
mnt-by:         RIPE-DB-MNT
created:        2022-06-23T07:54:31Z
last-modified:  2023-08-31T08:35:23Z
source:         RIPE # Filtered

role:           SM Ltd. NOC
address:        58 Voskhod st
address:        Russian Federation, Novosibirskaya oblast, Novosibirsk
abuse-mailbox:  abuse@sm117.ru
nic-hdl:        NC5709-RIPE
mnt-by:         RIPE-DB-MNT
created:        2022-06-24T15:48:24Z
last-modified:  2023-08-31T08:42:39Z
source:         RIPE # Filtered

% Information related to '146.158.113.0/24AS210616'

route:          146.158.113.0/24
origin:         AS210616
mnt-by:         RIPE-DB-MNT
created:        2023-04-15T12:27:30Z
last-modified:  2023-04-15T12:27:30Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.111 (DEXTER)

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