Whois

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to '103.89.73.0 - 103.89.73.255'

% Abuse contact for '103.89.73.0 - 103.89.73.255' is '[email protected]'

inetnum:        103.89.73.0 - 103.89.73.255
netname:        OPTIVERPTYLTD-AU
descr:          Optiver Pty Ltd
descr:          39 Hunter Street, Sydney NSW 2000
country:        AU
org:            ORG-OPL1-AP
admin-c:        OPLA13-AP
tech-c:         OPLA13-AP
abuse-c:        AO386-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-OPTIVERPTYLTD-AU
mnt-irt:        IRT-OPTIVERPTYLTD-AU
last-modified:  2023-09-23T02:14:15Z
geofeed:        https://raw.githubusercontent.com/optiver/geofeed/main/geofeed.csv
source:         APNIC

% Information related to '103.89.73.0/24AS136471'

route:          103.89.73.0/24
origin:         AS136471
descr:          Optiver Pty Ltd
                39 Hunter Street
mnt-by:         MAINT-OPTIVERPTYLTD-AU
last-modified:  2022-05-31T06:56:01Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-UK2)