% 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 '31.47.128.0 - 31.47.143.255'

% Abuse contact for '31.47.128.0 - 31.47.143.255' is 'abuse@rt.ru'

inetnum:        31.47.128.0 - 31.47.143.255
netname:        TVINGO
descr:          Total-Net Ltd
country:        RU
admin-c:        MUKS-RIPE
tech-c:         SOLT-RIPE
status:         ASSIGNED PA
remarks:        INFRA-AW
mnt-by:         ROSTELECOM-MNT
mnt-lower:      ROSTELECOM-MNT
mnt-domains:    ROSTELECOM-MNT
mnt-routes:     ROSTELECOM-MNT
created:        2024-10-16T06:59:18Z
last-modified:  2024-10-16T06:59:18Z
source:         RIPE

person:         Mikhail Merkulov
address:        Tank
phone:          +7 918 8292479
nic-hdl:        MUKS-RIPE
mnt-by:         TOTALNET-MNT
created:        2011-07-18T09:10:37Z
last-modified:  2011-07-18T09:10:37Z
source:         RIPE

person:         Sergey Soltanov
address:        Dzusova str., 34/2, apt.119, Vladikavkaz, 362045 Russia
phone:          +7 918 822 50 37
nic-hdl:        SOLT-RIPE
mnt-by:         TOTALNET-MNT
created:        2011-07-18T08:58:50Z
last-modified:  2011-07-18T09:11:20Z
source:         RIPE

% Information related to '31.47.128.0/20AS12389'

route:          31.47.128.0/20
origin:         AS12389
mnt-by:         ROSTELECOM-MNT
created:        2024-10-24T10:27:21Z
last-modified:  2024-10-24T10:27:21Z
source:         RIPE

% 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