% APNIC found the following authoritative answer from: whois.apnic.net

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to '203.56.250.0 - 203.56.250.255'

% Abuse contact for '203.56.250.0 - 203.56.250.255' is 'abuse@as45671.net.au'

inetnum:        203.56.250.0 - 203.56.250.255
netname:        SAU-NET-AU
descr:          Servers Australia Pty Ltd
descr:          Wholesale Services Provider
country:        AU
org:            ORG-SAPL7-AP
admin-c:        SAPL2-AP
tech-c:         SAPL2-AP
abuse-c:        AS2316-AP
status:         ASSIGNED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-routes:     MAINT-SAU-NET-AU
mnt-irt:        IRT-SAU-NET-AU
last-modified:  2024-05-01T00:25:18Z
geofeed:        https://cdn0.mysau.com.au/noc-resources/geo.csv
source:         APNIC

irt:            IRT-SAU-NET-AU
address:        PO Box 3187
address:        Tuggerah
address:        NSW 2259
e-mail:         noc@serversaustralia.com.au
abuse-mailbox:  abuse@as45671.net.au
admin-c:        SA389-AP
tech-c:         SA389-AP
auth:           # Filtered
remarks:        abuse@as45671.net.au was validated on 2024-10-29
remarks:        noc@serversaustralia.com.au was validated on 2025-01-28
mnt-by:         MAINT-AU-SAUNOC
last-modified:  2025-01-28T22:06:42Z
source:         APNIC

organisation:   ORG-SAPL7-AP
org-name:       Servers Australia Pty. Ltd
org-type:       LIR
country:        AU
address:        PO Box 3187
phone:          +61-2-43074200
fax-no:         +61-2-43074201
e-mail:         support@serversaustralia.com.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:31Z
source:         APNIC

role:           ABUSE SAUNETAU
country:        ZZ
address:        PO Box 3187
address:        Tuggerah
address:        NSW 2259
phone:          +000000000
e-mail:         noc@serversaustralia.com.au
admin-c:        SA389-AP
tech-c:         SA389-AP
nic-hdl:        AS2316-AP
remarks:        Generated from irt object IRT-SAU-NET-AU
remarks:        abuse@as45671.net.au was validated on 2024-10-29
remarks:        noc@serversaustralia.com.au was validated on 2025-01-28
abuse-mailbox:  abuse@as45671.net.au
mnt-by:         APNIC-ABUSE
last-modified:  2025-01-28T22:06:47Z
source:         APNIC

role:           Servers Australia Pty Ltd - Network Administrator
address:        PO Box 3187, Tuggerah, NSW 2259
remarks:        Internet Service Provider
country:        AU
phone:          +61-2-81158888
e-mail:         noc@serversaustralia.com.au
admin-c:        SAPL2-AP
tech-c:         SAPL2-AP
nic-hdl:        SAPL2-AP
mnt-by:         MAINT-SAU-NET-AU
last-modified:  2017-05-02T04:19:31Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-AU4)