% 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 '91.108.36.0 - 91.108.37.255'

% Abuse contact for '91.108.36.0 - 91.108.37.255' is 'abuse@gnm.net'

inetnum:        91.108.36.0 - 91.108.37.255
netname:        Telegram_CDN
country:        TR
admin-c:        ND2624-RIPE
tech-c:         ND2624-RIPE
status:         ASSIGNED PA
mnt-by:         MNT-TELEGRAM
created:        2017-06-21T10:02:52Z
last-modified:  2017-07-05T03:28:26Z
source:         RIPE

person:         Nikolai Durov
address:        P.O. Box 146, Road Town, Tortola, British Virgin Islands
phone:          +357 96 287319
nic-hdl:        ND2624-RIPE
mnt-by:         MNT-TELEGRAM
created:        2014-03-07T19:25:00Z
last-modified:  2014-03-08T03:31:36Z
source:         RIPE

% Information related to '91.108.36.0/23AS44907'

route:          91.108.36.0/23
origin:         AS44907
mnt-by:         MNT-TELEGRAM
created:        2017-06-21T10:04:32Z
last-modified:  2017-06-21T10:04:39Z
source:         RIPE

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