% 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 '203.110.235.0 - 203.110.235.255'

% Abuse contact for '203.110.235.0 - 203.110.235.255' is 'NSServiceMGT@anz.com'

inetnum:        203.110.235.0 - 203.110.235.255
netname:        ANZ
descr:          Australia and New Zealand Banking Group Ltd
country:        AU
org:            ORG-AANZ1-AP
admin-c:        DA57-AP
tech-c:         DA57-AP
abuse-c:        AA1796-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-ANZ-AU
mnt-irt:        IRT-ANZ-AU
last-modified:  2020-07-07T22:49:46Z
source:         APNIC

irt:            IRT-ANZ-AU
address:        833 Collins Street
address:        Docklands, 3008
address:        Victoria
address:        Australia
e-mail:         NSServiceMGT@anz.com
abuse-mailbox:  NSServiceMGT@anz.com
admin-c:        GNS10-AP
tech-c:         GNS10-AP
auth:           # Filtered
remarks:        nsservicemgt@anz.com was validated on 2025-12-16
mnt-by:         MAINT-AU-ANZGNS
last-modified:  2025-12-16T20:11:53Z
source:         APNIC

organisation:   ORG-AANZ1-AP
org-name:       AUSTRALIA AND NEW ZEALAND BANKING GROUP LIMITED
org-type:       LIR
country:        AU
address:        Level 2A
address:        833 Collins Street
address:        Docklands
phone:          +61-3-8655-7730
fax-no:         +61-3-8654-3944
e-mail:         NSServiceMGT@anz.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2024-01-30T13:00:45Z
source:         APNIC

role:           ABUSE ANZAU
country:        ZZ
address:        833 Collins Street
address:        Docklands, 3008
address:        Victoria
address:        Australia
phone:          +000000000
e-mail:         NSServiceMGT@anz.com
admin-c:        GNS10-AP
tech-c:         GNS10-AP
nic-hdl:        AA1796-AP
remarks:        Generated from irt object IRT-ANZ-AU
remarks:        nsservicemgt@anz.com was validated on 2025-12-16
abuse-mailbox:  NSServiceMGT@anz.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-16T20:12:11Z
source:         APNIC

person:         DNS Administrator
nic-hdl:        DA57-AP
e-mail:         dnsadmin@anz.com
address:        6/55 Collins Street
address:        Melbourne, 3000
address:        Victoria
phone:          +613-8655-7730
fax-no:         +613-9869-2627
country:        AU
mnt-by:         MAINT-AU-ANZGNS
last-modified:  2017-03-15T05:05:49Z
source:         APNIC

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