% 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 '61.88.115.192 - 61.88.115.255'

% Abuse contact for '61.88.115.192 - 61.88.115.255' is 'abuse@optusnet.com.au'

inetnum:        61.88.115.192 - 61.88.115.255
netname:        LANSAPTYLTD
country:        AU
descr:          OPTUS Customer Network
descr:          Lansa Pty Ltd
descr:          L8, 122 Arthur St
descr:          North Sydney
descr:          NSW 2060
remarks:        for spam/abuse complaints
remarks:        mail jason.rampe@lansa.com.au
admin-c:        OA3-AP
tech-c:         OA3-AP
status:         ASSIGNED NON-PORTABLE
notify:         hostmaster@optus.net.au
mnt-by:         MAINT-OPTUSCOM-AP
last-modified:  2008-09-04T06:58:10Z
source:         APNIC

role:           OPTUS IP ADMINISTRATORS
address:        SingTel Optus Pty Ltd
address:        Optus Macquarie Park (OCS)
address:        1 Lyonpark Road
address:        Macquarie Park  NSW 2113
address:        AUSTRALIA
country:        AU
phone:          +61 2 8082 7800
fax-no:         +61 2 8082 7100
e-mail:         ipadmin@optus.net.au
remarks:        send spam/abuse reports to abuse@optus.net.au
remarks:        please use http://www.apnic.net/db/spam.html
remarks:        to identify networks before sending reports and
remarks:        always include full headers/logs.
admin-c:        NC8-AP
admin-c:        IA65-AP
tech-c:         NC8-AP
tech-c:         IA65-AP
tech-c:         OH23-AP
nic-hdl:        OA3-AP
notify:         hostmaster@optus.net.au
mnt-by:         MAINT-OPTUSCOM-AP
last-modified:  2011-12-06T00:10:13Z
source:         APNIC

% Information related to '61.88.0.0/17AS7474'

route:          61.88.0.0/17
origin:         AS7474
descr:          SingTel Optus Pty Ltd
                Optus Macquarie Park (OCS)
                Building A, Level 2
                1 Lyonpark Road,
                Macquarie Park
mnt-by:         MAINT-OPTUSCOM-AP
last-modified:  2021-09-17T07:02:55Z
source:         APNIC

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

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