% 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 '213.172.147.0 - 213.172.147.255'

% No abuse contact registered for 213.172.147.0 - 213.172.147.255

inetnum:        213.172.147.0 - 213.172.147.255
netname:        Herotel
descr:          Herotel
country:        ZA
org:            ORG-HP1-AFRINIC
admin-c:        NH19-AFRINIC
admin-c:        DH11-AFRINIC
admin-c:        JM97-AFRINIC
tech-c:         NH19-AFRINIC
tech-c:         DH11-AFRINIC
tech-c:         JM97-AFRINIC
status:         ASSIGNED PA
remarks:        Herotel - For abuse please contact - report-abuse@herotel.com
mnt-by:         HP1-MNT
mnt-lower:      HP1-MNT
mnt-domains:    HP1-MNT
source:         AFRINIC # Filtered
parent:         213.172.128.0 - 213.172.159.255

organisation:   ORG-HP1-AFRINIC
org-name:       HERO TELECOMS (PTY) LTD
org-type:       LIR
country:        ZA
address:        98 Dorp Street
address:        Stellenbosch
address:        Capetown (7600)
phone:          tel:+27-82-464-0965
phone:          tel:+27-83-626-3546
phone:          tel:+27-21-300-0142
phone:          tel:+27-21-300-0499
admin-c:        JM97-AFRINIC
tech-c:         DH11-Afrinic
tech-c:         JM97-AFRINIC
mnt-ref:        AFRINIC-HM-MNT
mnt-ref:        HP1-MNT
mnt-by:         AFRINIC-HM-MNT
source:         AFRINIC # Filtered

person:         Derrick Harrison
nic-hdl:        DH11-AFRINIC
address:        98 Dorp St
address:        Stellenbosch
address:        7600
address:        Cape Town 7600
address:        South Africa
phone:          tel:+27-21-300-0142
phone:          tel:+27-21-300-0499
mnt-by:         Fusion-MNT
mnt-by:         HP1-MNT
source:         AFRINIC # Filtered

person:         Justin Marais
nic-hdl:        JM97-AFRINIC
address:        HeroTel
address:        98 Dorp St
address:        Stellenbosch Central
address:        Stellenbosch 7600
address:        South Africa
phone:          tel:+27-21-300-0142
mnt-by:         GENERATED-ZIH1N4Z5QZLAQD7ULJUJP60JHS438KHQ-MNT
source:         AFRINIC # Filtered

person:         Netops Herotel
address:        HeroTel, 40 Bird Street
address:        Stellenbosch Central 7600
address:        South Africa
phone:          tel:+27-21-300-0142
nic-hdl:        NH19-AFRINIC
source:         AFRINIC # Filtered
mnt-by:         GENERATED-7KVTP5DC8FMA4ECQBYM3C9NE6PHNJ1AO-MNT

% Information related to '213.172.147.0/24AS328471'

route:          213.172.147.0/24
descr:          Herotel
origin:         AS328471
mnt-by:         HP1-MNT
source:         AFRINIC # Filtered

% Information related to '213.172.147.0/24AS37439'

route:          213.172.147.0/24
descr:          Herotel
origin:         AS37439
mnt-by:         HP1-MNT
source:         AFRINIC # Filtered