% 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 '46.249.64.0 - 46.249.95.255'

% Abuse contact for '46.249.64.0 - 46.249.95.255' is 'abuse-ip@vivacom.bg'

inetnum:        46.249.64.0 - 46.249.95.255
netname:        BG-BTC-20101230
country:        BG
org:            ORG-BTCP1-RIPE
admin-c:        LG700-RIPE
tech-c:         BTC3-RIPE
tech-c:         BTC3-RIPE
status:         ALLOCATED PA
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         BT95-ADM
mnt-lower:      BTC-PROV-ADM
mnt-lower:      BT95-ADM
mnt-domains:    MNT-BTCNET
mnt-domains:    BTC-PROV-ADM
mnt-routes:     BTC-PROV-ADM
created:        2010-12-30T11:21:09Z
last-modified:  2022-06-03T14:08:51Z
source:         RIPE

% Information related to '46.249.65.0/24AS43561'

route:          46.249.65.0/24
descr:          NET1 - PA Address space
origin:         AS43561
mnt-by:         MNT-NET1
created:        2011-07-29T06:08:52Z
last-modified:  2011-07-29T06:08:52Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.124.1 (ABERDEEN)