% 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 '203.23.90.0 - 203.23.90.255'

% Abuse contact for '203.23.90.0 - 203.23.90.255' is 'abuse@joeys.org'

inetnum:        203.23.90.0 - 203.23.90.255
netname:        JOEYS-AU
descr:          St. Josephs College - Hunters Hill
country:        AU
org:            ORG-MBSJ1-AP
admin-c:        MBSJ1-AP
tech-c:         MBSJ1-AP
abuse-c:        AJ390-AP
mnt-by:         APNIC-HM
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-routes:     MAINT-JOEYS-AU
mnt-irt:        IRT-JOEYS-AU
last-modified:  2023-02-16T08:07:42Z
source:         APNIC

irt:            IRT-JOEYS-AU
address:        Marks Street, Hunters Hill, NSW 2110 Australia, Sydney NSW 2110
e-mail:         abuse@joeys.org
abuse-mailbox:  abuse@joeys.org
admin-c:        MBSJ1-AP
tech-c:         MBSJ1-AP
auth:           # Filtered
remarks:        abuse@joeys.org was validated on 2025-02-04
mnt-by:         MAINT-JOEYS-AU
last-modified:  2025-02-04T20:54:14Z
source:         APNIC

organisation:   ORG-MBSJ1-AP
org-name:       MARIST BROTHERS ST JOSEPHS COLLEGE
org-type:       LIR
country:        AU
address:        Marks Street
address:        Hunters Hill
address:        NSW 2110 Australia
phone:          +61298160900
fax-no:         +61298160900
e-mail:         abuse@joeys.org
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:16:36Z
source:         APNIC

role:           ABUSE JOEYSAU
country:        ZZ
address:        Marks Street, Hunters Hill, NSW 2110 Australia, Sydney NSW 2110
phone:          +000000000
e-mail:         abuse@joeys.org
admin-c:        MBSJ1-AP
tech-c:         MBSJ1-AP
nic-hdl:        AJ390-AP
remarks:        Generated from irt object IRT-JOEYS-AU
remarks:        abuse@joeys.org was validated on 2025-02-04
abuse-mailbox:  abuse@joeys.org
mnt-by:         APNIC-ABUSE
last-modified:  2025-02-04T20:54:17Z
source:         APNIC

role:           MARIST BROTHERS ST JOSEPHS COLLEGE administrator
address:        Marks Street, Hunters Hill, NSW 2110 Australia, Sydney NSW 2110
country:        AU
phone:          +61298160900
fax-no:         +61298160900
e-mail:         abuse@joeys.org
admin-c:        MBSJ1-AP
tech-c:         MBSJ1-AP
nic-hdl:        MBSJ1-AP
mnt-by:         MAINT-JOEYS-AU
last-modified:  2015-05-14T07:35:09Z
source:         APNIC

% Information related to '203.23.90.0/24AS134184'

route:          203.23.90.0/24
origin:         AS134184
descr:          MARIST BROTHERS ST JOSEPHS COLLEGE
                Marks Street
                Hunters Hill
                NSW 2110 Australia
mnt-by:         MAINT-JOEYS-AU
last-modified:  2024-08-26T02:42:34Z
source:         APNIC

% Information related to '203.23.90.0/24AS17668'

route:          203.23.90.0/24
origin:         AS17668
descr:          MARIST BROTHERS ST JOSEPHS COLLEGE
                Marks Street
                Hunters Hill
                NSW 2110 Australia
mnt-by:         MAINT-JOEYS-AU
last-modified:  2023-10-30T02:06:00Z
source:         APNIC

% Information related to '203.23.90.0/24AS45437'

route:          203.23.90.0/24
origin:         AS45437
descr:          MARIST BROTHERS ST JOSEPHS COLLEGE
                Marks Street
                Hunters Hill
                NSW 2110 Australia
mnt-by:         MAINT-JOEYS-AU
last-modified:  2024-08-26T02:41:39Z
source:         APNIC

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