% 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 '103.10.51.0 - 103.10.51.255'

% Abuse contact for '103.10.51.0 - 103.10.51.255' is 'it@sea.museum'

inetnum:        103.10.51.0 - 103.10.51.255
netname:        ANMM-AU
descr:          2 Murray Street
country:        AU
org:            ORG-ANMM1-AP
admin-c:        ANMM1-AP
tech-c:         ANMM1-AP
abuse-c:        AA2122-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-ANMM-AU
mnt-irt:        IRT-ANMM-AU
last-modified:  2020-11-25T06:37:55Z
source:         APNIC

irt:            IRT-ANMM-AU
address:        2 Murray Street Sydney NSW 2000
e-mail:         it@sea.museum
abuse-mailbox:  it@sea.museum
admin-c:        ANMM1-AP
tech-c:         ANMM1-AP
auth:           # Filtered
remarks:        it@sea.museum was validated on 2024-01-31
mnt-by:         MAINT-ANMM-AU
last-modified:  2024-01-31T23:09:53Z
source:         APNIC

organisation:   ORG-ANMM1-AP
org-name:       Australian National Maritime Museum
org-type:       LIR
country:        AU
address:        2 Murray Street
phone:          +61 2 9298 3798
fax-no:         +61 2 9298 3780
e-mail:         kholt@anmm.gov.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:49Z
source:         APNIC

role:           ABUSE ANMMAU
address:        2 Murray Street Sydney NSW 2000
country:        ZZ
phone:          +000000000
e-mail:         it@sea.museum
admin-c:        ANMM1-AP
tech-c:         ANMM1-AP
nic-hdl:        AA2122-AP
remarks:        Generated from irt object IRT-ANMM-AU
remarks:        it@sea.museum was validated on 2023-07-26
abuse-mailbox:  it@sea.museum
mnt-by:         APNIC-ABUSE
last-modified:  2023-07-26T21:06:12Z
source:         APNIC

role:           AUSTRALIAN NATIONAL MARITIME MUSEUM - network admi
address:        2 Murray Street Sydney NSW 2000
country:        AU
phone:          +61292983798
e-mail:         kholt@anmm.gov.au
admin-c:        ANMM1-AP
tech-c:         ANMM1-AP
nic-hdl:        ANMM1-AP
mnt-by:         MAINT-ANMM-AU
last-modified:  2011-05-23T04:01:25Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.25 (WHOIS-AU3)

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