% 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 '115.187.145.0 - 115.187.191.0'

% Abuse contact for '115.187.145.0 - 115.187.191.0' is 'abuse@symbionetworks.com'

inetnum:        115.187.145.0 - 115.187.191.0
netname:        MNF_Data
descr:          MNF Data customers
descr:          This space is statically assigned
country:        AU
admin-c:        JL123-AP
tech-c:         JL123-AP
abuse-c:        AS2994-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-AU-SYMBIO
mnt-lower:      MAINT-AU-SYMBIO
mnt-routes:     MAINT-AU-SYMBIO
mnt-irt:        IRT-SYMBIO-AU
last-modified:  2021-01-14T05:44:11Z
source:         APNIC

irt:            IRT-SYMBIO-AU
address:        Symbio Networks
address:        Level 3, 580 George St
address:        Sydney
address:        NSW 2000
e-mail:         abuse@symbionetworks.com
abuse-mailbox:  abuse@symbionetworks.com
admin-c:        CF905-AP
tech-c:         CF905-AP
auth:           # Filtered
remarks:        abuse@symbionetworks.com was validated on 2026-06-17
mnt-by:         MAINT-AU-SYMBIO
last-modified:  2026-06-17T22:43:07Z
source:         APNIC

role:           ABUSE SYMBIOAU
country:        ZZ
address:        Symbio Networks
address:        Level 3, 580 George St
address:        Sydney
address:        NSW 2000
phone:          +000000000
e-mail:         abuse@symbionetworks.com
admin-c:        CF905-AP
tech-c:         CF905-AP
nic-hdl:        AS2994-AP
remarks:        Generated from irt object IRT-SYMBIO-AU
remarks:        abuse@symbionetworks.com was validated on 2026-06-17
abuse-mailbox:  abuse@symbionetworks.com
mnt-by:         APNIC-ABUSE
last-modified:  2026-06-17T22:43:42Z
source:         APNIC

person:         Jared Lee
address:        Level 3, 580 George St
address:        Sydney
address:        NSW 2000
address:        Australia
country:        AU
phone:          +61-2-8008-8000
e-mail:         abuse@mynetfone.com.au
nic-hdl:        JL123-AP
mnt-by:         MAINT-AU-SYMBIO
last-modified:  2017-08-18T05:35:15Z
source:         APNIC

% Information related to '115.187.128.0/18AS38333'

route:          115.187.128.0/18
origin:         AS38333
descr:          Symbio Networks Pty Ltd
                Level 2, 10-14 Waterloo Street
mnt-by:         MAINT-AU-SYMBIO
last-modified:  2016-09-26T04:18:02Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU5)