% 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 '197.220.20.0 - 197.220.23.255'

% No abuse contact registered for 197.220.20.0 - 197.220.23.255

inetnum:        197.220.20.0 - 197.220.23.255
netname:        Lusaka-WiMAX-Customers
descr:          Lusaka-WiMAX-Customers
country:        ZM
admin-c:        NI1-AFRINIC
admin-c:        BS1-AFRINIC
admin-c:        MM75-AFRINIC
tech-c:         NI1-AFRINIC
tech-c:         BS1-AFRINIC
tech-c:         MM75-AFRINIC
status:         ASSIGNED PA
mnt-by:         Ni1-MNT
source:         AFRINIC # Filtered
parent:         197.220.0.0 - 197.220.31.255

person:         Bill Sangiwa
address:        PO Box 8803
address:        Dar es Salaam
address:        Tanzania
phone:          tel:+260-97-7770169
nic-hdl:        BS1-AFRINIC
abuse-mailbox:  bill@sangiwa.com
mnt-by:         BS1-MNT
source:         AFRINIC # Filtered

person:         Mwandu Mwelwa
nic-hdl:        MM75-AFRINIC
address:        The Gallery Office Park, Lagos Rd, Rhodespark, Lusaka
address:        Lusaka 10101
address:        Zambia
phone:          tel:+260-97-6110997
mnt-by:         MM75-MNT
source:         AFRINIC # Filtered

person:         NOC iCONNECT
nic-hdl:        Ni1-AFRINIC
address:        iConnect Internet Services
address:        Harvey Tile Complex,  Plot 59, Great East Road
address:        P.O. Box 31276
address:        Lusaka 31276
address:        Zambia
phone:          tel:+260-1232005
phone:          tel:+260-1221685
fax-no:         tel:+260-1226078
mnt-by:         ni1-mnt
source:         AFRINIC # Filtered

% Information related to '197.220.0.0/19AS36959'

route:          197.220.0.0/19
origin:         AS36959
descr:          LIR Aggegate
mnt-by:         Ni1-MNT
source:         AFRINIC # Filtered