% 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 '197.253.12.192 - 197.253.12.223'

% No abuse contact registered for 197.253.12.192 - 197.253.12.223

inetnum:        197.253.12.192 - 197.253.12.223
netname:        National_Assembly_Abuja
descr:          Used internally by National Assembly, Abuja
country:        NG
admin-c:        JP7-AFRINIC
tech-c:         JP7-AFRINIC
status:         ASSIGNED PA
remarks:        For National Assembly, Abuja, Nigeria
mnt-by:         Mainone-MNT
source:         AFRINIC # Filtered
parent:         197.253.0.0 - 197.253.63.255

person:         John Philips
address:        National Assembly Complex, 3 Arms Zone, Abuja, Nigeria
phone:          tel:+234-803-074-9343
nic-hdl:        JP7-AFRINIC
mnt-by:         GENERATED-ZICFHGYANTVS6Q53SLRUHL2BZ2QY4PVB-MNT
source:         AFRINIC # Filtered

% Information related to '197.253.0.0/18AS37282'

route:          197.253.0.0/18
descr:          MAINONE ROUTE
origin:         AS37282
mnt-by:         Mainone-mnt
source:         AFRINIC # Filtered