APNIC - Query the APNIC Whois Database

To assist you with debugging problems, this whois query was received from IP Address

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html
% Information related to '203.17.138.0 - 203.17.138.255'
% Abuse contact for '203.17.138.0 - 203.17.138.255' is 'abuse@optusnet.com.au'
inetnum:        203.17.138.0 - 203.17.138.255
netname:        OPTUSCOM-AU
descr:          SingTel Optus Pty Ltd
country:        AU
org:            ORG-SOPL2-AP
admin-c:        OA3-AP
tech-c:         OA3-AP
abuse-c:        AO399-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-----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-----END CERTIFICATE-----
mnt-by:         APNIC-HM
mnt-routes:     MAINT-OPTUSCOM-AP
mnt-irt:        IRT-OPTUSCOM-AU
last-modified:  2024-03-06T00:40:32Z
source:         APNIC
irt:            IRT-OPTUSCOM-AU
address:        SingTel Optus Pty Ltd
address:        Optus Macquarie Park (OCS)
address:        1 Lyonpark Road
address:        Macquarie Park NSW 2113
e-mail:         abuse@optusnet.com.au
abuse-mailbox:  abuse@optusnet.com.au
admin-c:        OA3-AP
tech-c:         OA3-AP
auth:           # Filtered
remarks:        abuse@optusnet.com.au was validated on 2023-11-15
mnt-by:         MAINT-OPTUSCOM-AP
last-modified:  2023-11-15T00:47:17Z
source:         APNIC
organisation:   ORG-SOPL2-AP
org-name:       SingTel Optus Pty Ltd
org-type:       LIR
country:        AU
address:        Optus Macquarie Park (OCS)
address:        Building A, Level 2
address:        1 Lyonpark Road,
address:        Macquarie Park
phone:          +61-2-8082-7800
fax-no:         +61-2-8082-7100
e-mail:         ipadmin@optus.net.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:43Z
source:         APNIC
role:           ABUSE OPTUSCOMAU
address:        SingTel Optus Pty Ltd
address:        Optus Macquarie Park (OCS)
address:        1 Lyonpark Road
address:        Macquarie Park NSW 2113
country:        ZZ
phone:          +000000000
e-mail:         abuse@optusnet.com.au
admin-c:        OA3-AP
tech-c:         OA3-AP
nic-hdl:        AO399-AP
remarks:        Generated from irt object IRT-OPTUSCOM-AU
remarks:        abuse@optusnet.com.au was validated on 2023-11-15
abuse-mailbox:  abuse@optusnet.com.au
mnt-by:         APNIC-ABUSE
last-modified:  2023-11-15T00:47:43Z
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
% This query was served by the APNIC Whois Service version 1.88.25 (WHOIS-AU2)
  • Bold: Object type.
  • Underlined: Primary key(s).
  • Hyperlinks: Searchable Attributes.
5 records found for '203.17.138.0'
Search for  
IP address lookups Miscellaneous queries
-l

1st level less specific

Returns smallest IP address range that includes the queried IP address or range

-i

Inverse attributes

Returns objects with an attribute that matches the query text and attribute type
-L

All less specific

Return all larger IP address ranges that include the queried IP address or range

-T

Object types

Results that match the query and are of a specified object type
-m

1st level more specific

Returns first level more specific address ranges within the boundaries of the queried IP address range
-M

All more specific

Returns all more specific address ranges within the boundaries of the queried IP address range

Query hints

  • Include "AS" in front of an AS number.
    Example: AS4808

  • Include "-t" (template only) or "-v" (template and description) in front of an object name to view the template
    Example: -t inetnum

-x

Exact match only

Returns address range that exactly matches the queried IP address range
-d

Associated reverse domain

Returns IP address range and associated reverse domain

For more information see: