% 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 '169.255.121.0 - 169.255.121.127'

% No abuse contact registered for 169.255.121.0 - 169.255.121.127

inetnum:        169.255.121.0 - 169.255.121.127
netname:        BZV_Core_Network
descr:          This range will be used for our Core network (2G_3G_WiMAX_IMS_LTE)
descr:          at Brazzaville side
country:        CG
admin-c:        JCM5-AFRINIC
tech-c:         LHS2-AFRINIC
tech-c:         RM41-AFRINIC
status:         ASSIGNED PA
mnt-by:         MTN-CONGO-MNT
source:         AFRINIC # Filtered
parent:         169.255.120.0 - 169.255.123.255

person:         Jean Claude MWENZE
address:        1150
address:        BRAZZAVILLE
address:        Congo
phone:          tel:+242-06-669-1557
nic-hdl:        JCM5-AFRINIC
mnt-by:         GENERATED-QN79KCRBZT1LLMTXGL80YMW7E7VMZ07X-MNT
source:         AFRINIC # Filtered

person:         Landry Hermann SAMBA
address:        1150
address:        BRAZZAVILLE
address:        Congo
phone:          tel:+242-06-669-1557
nic-hdl:        LHS2-AFRINIC
mnt-by:         GENERATED-DF4FDHIXCWCSGFGXATPP7FGF4ZIJFVTK-MNT
source:         AFRINIC # Filtered

person:         ROMARIC Mahoua
address:        MTN Congo Brazzaville
phone:          tel:+242-06-669-1353
nic-hdl:        RM41-AFRINIC
mnt-by:         GENERATED-KVSSABQTTWSB5PWWSUPHOQ9WIPCAE0WH-MNT
source:         AFRINIC # Filtered