203.16.75.0/24

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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        OA3-AP
tech-c:         OA3-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-12-23
mnt-by:         MAINT-OPTUSCOM-AP
last-modified:  2025-12-23T22:44:38Z
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:         [email protected]
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:         [email protected]
admin-c:        OA3-AP
tech-c:         OA3-AP
nic-hdl:        AO399-AP
remarks:        Generated from irt object IRT-OPTUSCOM-AU
remarks:        [email protected] was validated on 2025-12-23
abuse-mailbox:  [email protected]
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:         [email protected]
remarks:        send spam/abuse reports to [email protected]
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:         [email protected]
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
203.16.28.0/22 AS9518 JDV Limited 1,024
203.16.180.0/22 AS1221 Telstra Limited 1,024
203.16.60.0/23 AS55803 Hostopia Australia Web Pty Ltd 512
203.16.230.0/23 AS24565 NetCraft Australia Pty Ltd 512
203.16.232.0/23 AS38835 Brisbane Public Access Network Association Inc 512
203.16.196.0/24 AS17477 Sony Australia Limited 256
203.16.236.0/24 AS24436 Somerville House 256
203.16.24.0/24 AS2764 Department of Parliamentary Services Victoria 256
203.16.207.0/24 AS31736 Alain Stucki 256
203.16.175.0/24 AS45158 Blundstone Pty. Ltd. 256
203.16.227.0/24 AS45852 Bendigo Bank 256
203.16.170.0/24 AS4826 VOCUS PTY LTD 256
203.16.36.0/24 AS4826 Mitsubishi Electric Australia Pty Ltd 256
203.16.185.0/24 AS7474 Albury City Council 256
203.16.135.0/24 AS7545 iiNet Limited 256
203.16.164.0/24 AS7545 Perth College 256
203.16.229.0/24 AS7545 Pro Medicus Ltd. 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
203.16.25.0/24 AS9723 Hughes Technologies 256
203.16.165.0/24 AS131190 Level1, Inventor Building 256
203.16.241.0/24 AS136000 Martin Gardiner Computer Consultants 256
203.16.163.0/24 AS152699 SHOCKBYTE-FRA-DE 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

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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
117.174.59.8 AS9808 China Mobile Communications Group Co., Ltd. 4.05ms from Chengdu, CN
54.74.12.248 AS16509 Amazon.com, Inc. 0.16ms from Dublin, IE
87.155.221.200 AS3320 Deutsche Telekom AG 5.36ms from Frankfurt am Main, DE
84.226.255.88 AS6730 Sunrise GmbH 2.05ms from Geneve, CH
36.92.170.40 AS7713 PT Telekomunikasi Indonesia 0.65ms from Jakarta, ID
66.77.0.120 AS209 CenturyLink Communications, LLC 1.01ms from Los Angeles, US
178.124.45.216 AS6697 Republican Unitary Telecommunication Enterprise Beltelecom 8.25ms from Minsk, BY
34.91.209.24 AS396982 Google LLC 0.14ms from Oudeschip, NL
24.117.124.8 AS11492 CABLE ONE, INC. 1.42ms from Phoenix, US
60.217.32.184 AS4837 CHINA UNICOM China169 Backbone 4.05ms from Qingdao, CN
54.197.243.184 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
64.63.47.24 AS13414 Twitter Inc. 3.73ms from Seattle, US
111.220.131.216 AS9443 Vocus Retail 1.93ms from Brisbane, AU
75.162.135.56 AS209 CenturyLink Communications, LLC 8.51ms from Chicago, US
5.230.169.24 AS12586 GHOSTnet GmbH 7.93ms from Frankfurt am Main, DE
78.77.170.8 AS3301 Telia Company AB 0.55ms from Goeteborg, SE
176.37.147.168 AS39608 Lanet Network Ltd 0.50ms from Kyiv, UA
194.81.55.248 AS786 Jisc Services Limited 0.66ms from London, GB
147.160.180.56 AS396986 Bytedance Inc. 0.14ms from Miami, US
125.204.200.104 AS4713 NTT DOCOMO BUSINESS,Inc. 11.83ms from Osaka, JP
177.78.53.40 AS26599 TELEFÔNICA BRASIL S.A 3.85ms from Osasco, BR
52.95.201.40 AS16509 Amazon.com, Inc. 0.09ms from Seoul, KR
20.86.243.24 AS8075 Microsoft Corporation 0.23ms from Amsterdam, NL
54.188.243.8 AS16509 Amazon.com, Inc. 0.22ms from Boardman, US
102.161.98.232 AS30999 EMTEL LIMITED 13.85ms from Ebene, MU

Traceroute

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

$
traceroute -a -n -q1 -m10 203.16.75.76
traceroute to 203.16.75.76 (203.16.75.76): 10 hops max, 52 byte packets
1 [AS15169] 74.125.251.94 127.157 ms
2 [AS15169] 192.178.97.142 126.781 ms
3 *
4 *
5 *
6 [AS7474] 59.154.57.32 161.308 ms
7 [AS7474] 220.101.27.198 162.335 ms
8 *
9 *
10 *
Measurement taken from IPinfo ProbeNet in Seoul, KR
On

What are IP address ranges?

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