% 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 '154.66.176.0 - 154.66.191.255'

% No abuse contact registered for 154.66.176.0 - 154.66.191.255

inetnum:        154.66.176.0 - 154.66.191.255
netname:        Network-Platforms
descr:          Network Platforms (PTY) LTD
country:        ZA
org:            ORG-NPL3-AFRINIC
admin-c:        BM69-AFRINIC
admin-c:        BL2-AFRINIC
tech-c:         BM69-AFRINIC
tech-c:         WW6-AFRINIC
status:         ALLOCATED PA
remarks:        Geofeed https://www.networkplatforms.co.za/geofeeds/np-geofeed.csv
mnt-by:         AFRINIC-HM-MNT
mnt-lower:      NETWORK-PLATFORM-MNT
mnt-domains:    NETWORK-PLATFORM-MNT
source:         AFRINIC # Filtered
parent:         154.0.0.0 - 154.255.255.255

organisation:   ORG-NPL3-AFRINIC
org-name:       Network Platforms (PTY) LTD
org-type:       LIR
country:        ZA
address:        Suite 1 Dowerglen Plaza
address:        73 Sycamore Drive
address:        Dowerglen
address:        Edenvale 1609
phone:          tel:+27-10-007-1300
phone:          tel:+27-82-697-5168
admin-c:        BM69-AFRINIC
admin-c:        BL2-AFRINIC
tech-c:         BM69-AFRINIC
tech-c:         WW6-AFRINIC
mnt-ref:        AFRINIC-HM-MNT
mnt-ref:        NETWORK-PLATFORM-MNT
mnt-by:         AFRINIC-HM-MNT
source:         AFRINIC # Filtered

person:         Bradley Love
address:        Edenvale 1609
address:        ZA
address:        Johannesburg
address:        South Africa
phone:          tel:+27-10-007-1300
nic-hdl:        BL2-AFRINIC
mnt-by:         GENERATED-KIHPL6RIO1TSOIGGYNJPSYJNRTHZYHBU-MNT
source:         AFRINIC # Filtered

person:         Bongani Mhlanga
address:        6 Golf street Linksfield
address:        Johannesburg
address:        South Africa
phone:          tel:+27-82-697-5168
nic-hdl:        BM69-AFRINIC
mnt-by:         GENERATED-IXJ1FC6CWFW448RVNRVS5KWPTCLU6CL4-MNT
source:         AFRINIC # Filtered

person:         Warwick Ward-Cox
address:        Edenvale 1609
address:        ZA
address:        Johannesburg
address:        South Africa
phone:          tel:+27-10-007-1300
nic-hdl:        WW6-AFRINIC
mnt-by:         warwick-mnt
source:         AFRINIC # Filtered

% Information related to '154.66.184.0/21AS37497'

route:          154.66.184.0/21
origin:         AS37497
descr:          Network Platforms
mnt-by:         Network-Platform-MNT
source:         AFRINIC # Filtered