% 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 '31.163.80.0 - 31.163.127.255'

% Abuse contact for '31.163.80.0 - 31.163.127.255' is 'abuse@rt.ru'

inetnum:        31.163.80.0 - 31.163.127.255
netname:        USI_ADSL_USERS
descr:          Dynamic distribution IP's for broadband services
descr:          OJSC RosteleÓom, regional branch "Urals"
country:        RU
admin-c:        UPAS1-RIPE
tech-c:         UPAS1-RIPE
status:         ASSIGNED PA
mnt-by:         MFIST-MNT
created:        2012-01-11T04:56:44Z
last-modified:  2012-03-06T13:50:17Z
source:         RIPE

role:           Uralsvyazinform Perm Administration Staff
address:        11, Moskovskaya str.
address:        Yekaterinburg, 620014
address:        Russian Federation
admin-c:        SK2534-RIPE
admin-c:        DK2192-RIPE
admin-c:        SK3575-RIPE
admin-c:        TA2344-RIPE
tech-c:         DK2192-RIPE
tech-c:         SK3575-RIPE
tech-c:         TA2344-RIPE
nic-hdl:        UPAS1-RIPE
mnt-by:         MFIST-MNT
created:        2007-09-18T08:50:24Z
last-modified:  2019-02-14T06:36:03Z
source:         RIPE # Filtered

% Information related to '31.163.64.0/18AS12389'

route:          31.163.64.0/18
descr:          Rostelecom networks
origin:         AS12389
mnt-by:         ROSTELECOM-MNT
created:        2018-10-31T11:47:09Z
last-modified:  2018-10-31T11:47:09Z
source:         RIPE # Filtered

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

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