% 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 '77.45.128.0 - 77.45.191.255'

% Abuse contact for '77.45.128.0 - 77.45.191.255' is 'abuse@rt.ru'

inetnum:        77.45.128.0 - 77.45.191.255
netname:        MACROREGIONAL_CENTER
descr:          Regional multiservice network access
descr:          xDSL dynamic ip pool
descr:          OJSC Rostelecom, Voronezh branch
descr:          35, Revolutsii prosp.
descr:          Voronezh,394000
descr:          Russia
descr:          ex-netname: VSI-DSL-ACCESS
country:        RU
admin-c:        VSI8-RIPE
tech-c:         VSI8-RIPE
status:         ASSIGNED PA
mnt-by:         VSI-MNT
created:        2006-12-22T12:04:33Z
last-modified:  2012-08-20T09:03:17Z
source:         RIPE # Filtered

role:           VSI NOC
address:        OJSC Rostelecom Voronezh branch Network Operation Center
address:        35, Revolyutsii pr.
address:        394000
address:        Voronezh
address:        Russian Federation
phone:          +7 4732 531789
fax-no:         +7 4732 339352
admin-c:        AVF12-RIPE
admin-c:        ES5782-RIPE
admin-c:        EAS82-RIPE
tech-c:         AVF12-RIPE
tech-c:         ES5782-RIPE
tech-c:         EAS82-RIPE
nic-hdl:        VSI8-RIPE
mnt-by:         VSI-MNT
created:        2005-06-28T08:46:24Z
last-modified:  2012-01-26T05:24:05Z
source:         RIPE # Filtered
abuse-mailbox:  abuse@vsi.ru

% Information related to '77.45.176.0/20AS12389'

route:          77.45.176.0/20
descr:          Rostelecom networks
origin:         AS12389
mnt-by:         ROSTELECOM-MNT
created:        2018-10-25T14:21:53Z
last-modified:  2018-10-25T14:21:53Z
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