% 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 '92.124.64.0 - 92.124.95.255'

% Abuse contact for '92.124.64.0 - 92.124.95.255' is 'abuse@rt.ru'

inetnum:        92.124.64.0 - 92.124.95.255
netname:        WEBSTREAM
descr:          OJSC "Sibirtelecom"
remarks:        Krasnoyarsk branch
remarks:        broadband service
country:        RU
remarks:
remarks:        NCC#2007113991
remarks:        INFRA AW
remarks:
admin-c:        HKST1-RIPE
tech-c:         HKST1-RIPE
mnt-by:         NSOELSV-NCC
mnt-lower:      NSOELSV-NCC
mnt-lower:      AS5573-MNT
mnt-domains:    AS5573-MNT
mnt-domains:    NSOELSV-NCC
mnt-routes:     AS5573-MNT
mnt-routes:     NSOELSV-NCC
status:         ASSIGNED PA
created:        2007-12-14T09:11:32Z
last-modified:  2007-12-14T09:11:32Z
source:         RIPE # Filtered

person:         Hostmaster KRASNET
address:        KRASNET Regional Telecommunications Network
address:        80, Karl Marks str.
address:        660049 Krasnoyarsk
address:        Russia
phone:          +7 3912 660607
fax-no:         +7 3912 661465
nic-hdl:        HKST1-RIPE
mnt-by:         AS5573-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2004-12-20T03:43:45Z
source:         RIPE # Filtered

% Information related to '92.124.64.0/18AS12389'

route:          92.124.64.0/18
descr:          JSC Rostelecom regional branch "Siberia"
remarks:        Krasnoyarsk branch
origin:         AS12389
mnt-by:         NSOELSV-NCC
mnt-by:         ROSTELECOM-MNT
created:        2019-04-30T02:21:57Z
last-modified:  2019-04-30T02:21:57Z
source:         RIPE # Filtered

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

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