% 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 '203.34.100.0 - 203.34.100.255'

% Abuse contact for '203.34.100.0 - 203.34.100.255' is 'securityteam@myob.com'

inetnum:        203.34.100.0 - 203.34.100.255
netname:        MYOB-AU
descr:          MYOB Australia Pty Ltd
descr:          Level 3,
descr:          235 Springvale Road,
descr:          Australia
country:        AU
org:            ORG-MAPL5-AP
admin-c:        DN440-AP
tech-c:         MT489-AP
abuse-c:        AM2973-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:        --------------------------------------------------------
remarks:        -----BEGIN CERTIFICATE-----MIIEFTCCAv2gAwIBAgIUOlck9vgU4GzaaUrIYxN2rh1BVxIwDQYJKoZIhvcNAQELBQAwgZkxCzAJBgNVBAYTAkFVMQwwCgYDVQQIDANWSUMxEjAQBgNVBAcMCU1lbGJvdXJuZTENMAsGA1UECgwETXlvYjEUMBIGA1UECwwLRFgtTmV0d29ya3MxEjAQBgNVBAMMCUFXUy1CWU9JUDEvMC0GCSqGSIb3DQEJARYgTVlPQi1EWC1OZXR3b3JrU2VjdXJpdHlAbXlvYi5jb20wHhcNMjQxMTI3MDE0OTMwWhcNMjUxMTI3MDE0OTMwWjCBmTELMAkGA1UEBhMCQVUxDDAKBgNVBAgMA1ZJQzESMBAGA1UEBwwJTWVsYm91cm5lMQ0wCwYDVQQKDARNeW9iMRQwEgYDVQQLDAtEWC1OZXR3b3JrczESMBAGA1UEAwwJQVdTLUJZT0lQMS8wLQYJKoZIhvcNAQkBFiBNWU9CLURYLU5ldHdvcmtTZWN1cml0eUBteW9iLmNvbTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAN9JO/T/zWlYOb6ITmyNJxBjTkJOcpagbszmtNVkc7ZxFBQlI3haNjLq6Y4M4BpJ885bY9XyP/aEkCEAuod3NoqhHNQ6SaBj+quQBtGj/K+SXqZ0k983v9O7138gmDMVeU8PQEy4QEojETHzCXpycn1Ti7aACKhNaMF+mqvqwCCPqwHXqv6ol21GJZCACSaAGrUuqyH705Xo/MHpYykabgBmPlXm8i4dM3ACmZ3ONz9IJ5lYtstbidOpcbRGcFM2bdCnKvJuDdo1efZ1WVl1mothX1q+TCyBSIQmrULHhTZwpxoQNRpPbtXKzkEc3GDa7XYkppq34vqvPrbYHX5s18sCAwEAAaNTMFEwHQYDVR0OBBYEFOIsX3qzI0tvWQ4rXkHv+4mUBOR3MB8GA1UdIwQYMBaAFOIsX3qzI0tvWQ4rXkHv+4mUBOR3MA8GA1UdEwEB/wQFMAMBAf8wDQYJKoZIhvcNAQELBQADggEBANcs882iR+EUH4FqDMV2O1VmQKTJTNUs7VLdgVk/+qP/iBEN8pu20FA/wzFnYIXHxwouoJlt8RgCn2YKpE+W5Wd99gonuPPLgmtVTMJfBMdmnvXNTHTQr5VDHuvOmY1geCfqXqMuCp7f1yObvmBuuhFMMw4O57NzOoooYNWu+mtyRcft/CouQZL9qH+5vXWp62VJtZiPlW7kybsI4NFKEL3/ZMs9eby4oAPmjM6EAIT+xONiQ+ABCKnRnGXLnO6lUULlBOFS3wEQUdX2BnioCrpq/Zsbv1vH5LFzGFq9cWwOU+SSb0bVWG62ckrWUHO6cws4m+BC7oCFavrz3WwiKUs=-----END CERTIFICATE-----
mnt-by:         APNIC-HM
mnt-routes:     MAINT-AU-MYOB
mnt-irt:        IRT-MYOB-AU
last-modified:  2025-08-27T01:29:00Z
source:         APNIC

irt:            IRT-MYOB-AU
address:        168 Cremorne Street
address:        Cremorne VIC 3151
e-mail:         securityteam@myob.com
abuse-mailbox:  securityteam@myob.com
admin-c:        PW707-AP
tech-c:         DN440-AP
auth:           # Filtered
remarks:        securityteam@myob.com was validated on 2026-08-25
mnt-by:         MAINT-AU-MYOB
last-modified:  2026-08-25T22:46:35Z
source:         APNIC

organisation:   ORG-MAPL5-AP
org-name:       MYOB Australia Pty Ltd
org-type:       LIR
country:        AU
address:        Level 3,
address:        168 Cremorne St,
phone:          +61-3-9045-4400
e-mail:         hostmaster@myob.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:23Z
source:         APNIC

role:           ABUSE MYOBAU
country:        ZZ
address:        168 Cremorne Street
address:        Cremorne VIC 3151
phone:          +000000000
e-mail:         securityteam@myob.com
admin-c:        PW707-AP
tech-c:         DN440-AP
nic-hdl:        AM2973-AP
remarks:        Generated from irt object IRT-MYOB-AU
remarks:        securityteam@myob.com was validated on 2026-08-25
abuse-mailbox:  securityteam@myob.com
mnt-by:         APNIC-ABUSE
last-modified:  2026-08-25T22:47:02Z
source:         APNIC

role:           MYOB TECH
address:        168 Cremorne Street
address:        Cremorne VIC 3151
country:        AU
phone:          +61 3 9944 0384
e-mail:         apnic@myob.com
remarks:        send spam reports to securityteam@myob.com
remarks:        and abuse reports to securityteam@myob.com
remarks:        Please include detailed information and
remarks:        times in AEST
remarks:        www.myob.com
admin-c:        GK499-AP
tech-c:         EC740-AP
nic-hdl:        MT489-AP
notify:         apnic@myob.com
mnt-by:         MAINT-AU-MYOB
last-modified:  2023-07-12T23:25:13Z
source:         APNIC

person:         Dean Novelly
address:        168 Cremorne St Cremorne
country:        AU
phone:          +6433419536
e-mail:         dean.novelly@myob.com
nic-hdl:        DN440-AP
mnt-by:         MAINT-AU-MYOB
last-modified:  2025-08-25T23:53:10Z
source:         APNIC

% Information related to '203.34.100.0/24AS14618'

route:          203.34.100.0/24
origin:         AS14618
descr:          MYOB Australia Pty Ltd
                Level 3,
                168 Cremorne St,
mnt-by:         MAINT-AU-MYOB
last-modified:  2024-12-07T11:25:42Z
source:         APNIC

% Information related to '203.34.100.0/24AS16509'

route:          203.34.100.0/24
origin:         AS16509
descr:          MYOB Australia Pty Ltd
                Level 3,
                168 Cremorne St,
mnt-by:         MAINT-AU-MYOB
last-modified:  2024-12-07T11:25:44Z
source:         APNIC

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