% 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 '91.108.4.0 - 91.108.7.255'

% Abuse contact for '91.108.4.0 - 91.108.7.255' is 'abuse@telegram.org'

inetnum:        91.108.4.0 - 91.108.7.255
netname:        Telegram_Messenger_Network
descr:          Telegram Messenger Network
country:        NL
geoloc:         52.379189 4.899431
admin-c:        ND2624-RIPE
tech-c:         ND2624-RIPE
abuse-c:        TMI12-RIPE
status:         ASSIGNED PA
mnt-by:         MNT-TELEGRAM
created:        2015-05-31T20:40:03Z
last-modified:  2018-06-12T10:54:26Z
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 '91.108.7.0/24AS62041'

route:          91.108.7.0/24
origin:         AS62041
mnt-by:         mnt-ag-globalnet-1
mnt-by:         MNT-TELEGRAM
created:        2023-08-06T18:10:05Z
last-modified:  2023-08-06T18:10:05Z
source:         RIPE

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