203.16.78.0/24

AS7474  ·  SingTel Optus Pty Ltd

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Summary

Country Australia
Domain optus.com.au
ASN AS7474
Registry APNIC
ID OPTUSCOM-AU

WHOIS Details

inetnum:        203.16.64.0 - 203.16.127.255
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:         ALLOCATED 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-lower:      MAINT-OPTUSCOM-AP
mnt-routes:     MAINT-OPTUSCOM-AP
mnt-irt:        IRT-OPTUSCOM-AU
last-modified:  2023-05-04T04:52:29Z
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 2025-12-23
mnt-by:         MAINT-OPTUSCOM-AP
last-modified:  2026-02-16T00:08:15Z
source:         APNIC

organisation:   ORG-SOPL2-AP
org-name:       SingTel Optus Pty Ltd
org-type:       LIR
country:        AU
address:        Optus Macquarie Park (OCS)
address:        1 Lyonpark Road, Macquarie Park
phone:          +61-2-8082-7800
fax-no:         +61-2-8082-7100
e-mail:         irr-admin@optus.com.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2025-09-25T13:05:45Z
source:         APNIC

role:           ABUSE OPTUSCOMAU
country:        ZZ
address:        SingTel Optus Pty Ltd
address:        Optus Macquarie Park (OCS)
address:        1 Lyonpark Road
address:        Macquarie Park NSW 2113
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 2025-12-23
abuse-mailbox:  abuse@optusnet.com.au
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-23T22:44:48Z
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

Nearby Ranges

BGP prefixes that overlap with 203.16.0.0/16

Range ASN Company Num of IPs
203.16.208.0/21 AS4739 iiNet Limited 2,048
203.16.180.0/22 AS1221 Telstra Limited 1,024
203.16.28.0/22 AS9518 JDV Limited 1,024
203.16.232.0/23 AS38835 Brisbane Public Access Network Association Inc 512
203.16.230.0/23 AS24565 NetCraft Australia Pty Ltd 512
203.16.60.0/23 AS55803 Hostopia Australia Web Pty Ltd 512
203.16.196.0/24 AS17477 Sony Australia Limited 256
203.16.236.0/24 AS24436 Somerville House 256
203.16.165.0/24 AS131190 Level1, Inventor Building 256
203.16.24.0/24 AS2764 Department of Parliamentary Services Victoria 256
203.16.164.0/24 AS2764 Perth College 256
203.16.229.0/24 AS2764 Pro Medicus Ltd. 256
203.16.207.0/24 AS31736 Alain Stucki 256
203.16.163.0/24 AS152699 SHOCKBYTE-FRA-DE 256
203.16.175.0/24 AS45158 Blundstone Pty. Ltd. 256
203.16.227.0/24 AS45852 Bendigo Bank 256
203.16.241.0/24 AS136000 Martin Gardiner Computer Consultants 256
203.16.170.0/24 AS4826 VOCUS PTY LTD 256
203.16.36.0/24 AS4826 Mitsubishi Electric Australia Pty Ltd 256
203.16.25.0/24 AS9723 Hughes Technologies 256
203.16.185.0/24 AS7474 Albury City Council 256
203.16.135.0/24 AS7545 iiNet Limited 256
203.16.199.0/24 AS9266 Bendor Research Pty Ltd 256
203.16.39.0/24 AS9426 Westpac Banking Corporation 256
203.16.9.0/24 AS9443 VOCUS PTY LTD 256
203.16.177.0/24 AS153892 St Michael's Collegiate School 256
203.16.11.0/24 AS154210 PT PITUAMA UNGGULAN TEKNOLOGI 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
12.70.231.168 AS7018 AT&T Enterprises, LLC 1.51ms from Dallas, US
80.248.168.200 AS24713 CGI Suomi Oy 1.38ms from Helsinki, FI
190.186.49.136 AS25620 COTAS LTDA. 11.63ms from La Paz, BO
67.227.208.24 AS32244 Liquid Web, L.L.C 0.15ms from Lansing, US
86.254.221.120 AS3215 Orange S.A. 9.38ms from Paris, FR
112.227.72.120 AS4837 CHINA UNICOM China169 Backbone 5.33ms from Qingdao, CN
112.159.58.152 AS17858 LG POWERCOMM 1.94ms from Seoul, KR
14.65.88.24 AS4766 Korea Telecom 1.96ms from Seoul, KR
75.118.113.40 AS11776 Breezeline 11.40ms from Chicago, US
174.100.250.232 AS10796 Charter Communications Inc 6.84ms from Columbus, US
109.146.150.216 AS2856 British Telecommunications PLC 11.24ms from London, GB
98.203.87.168 AS7922 Comcast Cable Communications, LLC 3.77ms from Miami, US
60.135.246.120 AS17676 SoftBank Corp. 4.28ms from Osaka, JP
81.26.19.120 AS24848 Kielce University of Technology 7.39ms from Warsaw, PL
175.35.65.216 AS4804 Microplex PTY LTD 2.16ms from Adelaide, AU
108.31.126.216 AS701 Verizon Business 3.44ms from Ashburn, US
79.118.234.200 AS8708 DIGI ROMANIA S.A. 2.86ms from Bucharest, RO
64.236.98.8 AS8075 Microsoft Corporation 0.15ms from Des Moines, US
36.104.148.8 AS4134 CHINANET-BACKBONE 6.86ms from Harbin, CN
122.159.206.104 AS4837 CHINA UNICOM China169 Backbone 2.27ms from Harbin, CN
99.50.125.232 AS7018 AT&T Enterprises, LLC 3.66ms from Houston, US
47.157.137.40 AS5650 Frontier Communications of America, Inc. 2.45ms from Los Angeles, US
130.49.15.232 AS204957 GREEN FLOID LLC 0.44ms from Miami, US
123.130.102.56 AS4837 CHINA UNICOM China169 Backbone 7.28ms from Qingdao, CN
189.234.94.104 AS8151 UNINET 4.20ms from Santiago de Queretaro, MX

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -m6 203.16.78.12
traceroute to 203.16.78.12 (203.16.78.12): 6 hops max, 52 byte packets
2 [AS136557] 103.216.222.92 195.175 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Brisbane, AU
On

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Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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