% APNIC found the following authoritative answer from: whois.afrinic.net

% This is the AfriNIC Whois server.
% The AFRINIC whois database is subject to  the following terms of Use. See https://afrinic.net/whois/terms

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '196.249.92.0 - 196.249.92.255'

% No abuse contact registered for 196.249.92.0 - 196.249.92.255

inetnum:        196.249.92.0 - 196.249.92.255
netname:        VIETTEL-TANZANIA
descr:          3G_PSCLOUD
country:        TZ
admin-c:        HTH1-AFRINIC
admin-c:        NHP1-AFRINIC
tech-c:         HTH1-AFRINIC
tech-c:         NHP1-AFRINIC
status:         ASSIGNED PA
remarks:        Viettel Tanzania PLC
mnt-by:         VIETTEL-TZ-MNT
source:         AFRINIC # Filtered
parent:         196.249.64.0 - 196.249.127.255

person:         Hoang Tung Hung
address:        10th Floor,
address:        Tanzanite Park,
address:        Plot No. 38, South Ursino,
address:        New Bagamoyo Road
address:        P.O.BOX 34716
address:        Dar es Salaam
address:        Tanzania, United Republic of
phone:          tel:+255-612-668-888
nic-hdl:        HTH1-AFRINIC
source:         AFRINIC # Filtered
mnt-by:         GENERATED-LBBETPQQQWGDZKQDLLSXTBXFJWFXVNPQ-MNT

person:         Ngo Hoang Phuc
nic-hdl:        NHP1-AFRINIC
address:        10th Floor,
address:        Tanzanite Park,
address:        Plot No. 38, South Ursino,
address:        New Bagamoyo Road
address:        P.O.BOX 34716
address:        Dar es Salaam
address:        Tanzania, United Republic of
address:        Dar es Salaam 14111
address:        Tanzania, United Republic of
phone:          tel:+255-611-983-688
mnt-by:         GENERATED-QQQB1QIMCKPSWUJLAOD9YLFYT9GJORHP-MNT
source:         AFRINIC # Filtered

% Information related to '196.249.92.0/24AS327885'

route:          196.249.92.0/24
descr:          VIETTEL TANZANIA PLC
origin:         AS327885
mnt-by:         VIETTEL-TZ-MNT
source:         AFRINIC # Filtered