% 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:         ROSTELECOM-MNT
created:        2006-12-22T12:04:33Z
last-modified:  2025-12-17T13:26:15Z
source:         RIPE

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 '77.45.160.0/19AS21017'

route:          77.45.160.0/19
descr:          OJSC Rostelecom
descr:          Voronezh branch
descr:          35, Revolutsii prosp.
descr:          Voronezh,394000
descr:          Russia
origin:         AS21017
mnt-by:         ROSTELECOM-MNT
mnt-routes:     ROSTELECOM-MNT
created:        2011-10-10T07:59:54Z
last-modified:  2025-12-17T13:24:34Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.120 (DEXTER)