% 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 '203.28.240.0 - 203.28.241.255'

% Abuse contact for '203.28.240.0 - 203.28.241.255' is 'sysadmin@trinity.unimelb.edu.au'

inetnum:        203.28.240.0 - 203.28.241.255
netname:        TRINITYCOLLEGE
descr:          Trinity College
country:        AU
org:            ORG-TC4-AP
admin-c:        TCA5-AP
tech-c:         TCA5-AP
abuse-c:        AT1118-AP
status:         ALLOCATED PORTABLE
remarks:        -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+
remarks:        This object can only be updated by APNIC hostmasters.
remarks:        To update this object, please contact APNIC
remarks:        hostmasters and include your organization's account
remarks:        name in the subject line.
remarks:        -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+
mnt-by:         APNIC-HM
mnt-lower:      MAINT-TRINITYCOLLEGE-AU
mnt-routes:     MAINT-TRINITYCOLLEGE-AU
mnt-irt:        IRT-TRINITYCOLLEGE-AU
last-modified:  2020-06-23T01:16:56Z
source:         APNIC

irt:            IRT-TRINITYCOLLEGE-AU
address:        Royal Parade, Parkville Vic 3052
e-mail:         sysadmin@trinity.unimelb.edu.au
abuse-mailbox:  sysadmin@trinity.unimelb.edu.au
admin-c:        TCA5-AP
tech-c:         TCA5-AP
auth:           # Filtered
remarks:        sysadmin@trinity.unimelb.edu.au was validated on 2026-03-23
mnt-by:         MAINT-TRINITYCOLLEGE-AU
last-modified:  2026-03-23T03:19:38Z
source:         APNIC

organisation:   ORG-TC4-AP
org-name:       Trinity College
org-type:       LIR
country:        AU
address:        100 Royal Parade
phone:          +613-9348-7100
e-mail:         itmgr@trinity.unimelb.edu.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:16:19Z
source:         APNIC

role:           ABUSE TRINITYCOLLEGEAU
country:        ZZ
address:        Royal Parade, Parkville Vic 3052
phone:          +000000000
e-mail:         sysadmin@trinity.unimelb.edu.au
admin-c:        TCA5-AP
tech-c:         TCA5-AP
nic-hdl:        AT1118-AP
remarks:        Generated from irt object IRT-TRINITYCOLLEGE-AU
remarks:        sysadmin@trinity.unimelb.edu.au was validated on 2026-03-23
abuse-mailbox:  sysadmin@trinity.unimelb.edu.au
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-23T03:19:58Z
source:         APNIC

role:           Trinity College administrator
address:        Royal Parade, Parkville Vic 3052
country:        AU
phone:          +613-9348-7100
fax-no:         +613-9348-7100
e-mail:         sysadmin@trinity.unimelb.edu.au
admin-c:        TCA5-AP
tech-c:         TCA5-AP
nic-hdl:        TCA5-AP
mnt-by:         MAINT-TRINITYCOLLEGE-AU
last-modified:  2014-02-20T00:02:02Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU4)