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:         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 2025-06-18
mnt-by:         MAINT-OPTUSCOM-AP
last-modified:  2025-11-18T00:26:33Z
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 2025-06-18
abuse-mailbox:  abuse@optusnet.com.au
mnt-by:         APNIC-ABUSE
last-modified:  2025-06-18T01:06:45Z
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
203.16.28.0/22 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
203.16.177.0/24 AS153892 St Michael's Collegiate School 256
203.16.177.0/24 AS153892 St Michael's Collegiate School 256
203.16.11.0/24 AS154210 PT PITUAMA UNGGULAN TEKNOLOGI 256
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
203.16.177.0/24 AS150672 St Michael's Collegiate School 256
203.16.177.0/24 AS150672 St Michael's Collegiate School 256
203.16.163.0/24 AS152699 SHOCKBYTE-FRA-DE 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
37.97.229.40 AS20857 Signet B.V. 0.56ms from Amsterdam, NL
73.7.223.40 AS7922 Comcast Cable Communications, LLC 4.20ms from Atlanta, US
54.222.249.248 AS55960 Beijing Guanghuan Xinwang Digital 3.91ms from Beijing, CN
89.135.11.248 AS21334 One Hungary Ltd. 10.90ms from Budapest, HU
67.248.102.136 AS11351 Charter Communications Inc 18.03ms from Chicago, US
47.184.136.56 AS5650 Frontier Communications of America, Inc. 1.98ms from Dallas, US
139.55.20.24 AS7029 Windstream Communications LLC 10.50ms from Dallas, US
178.201.21.88 AS3209 Vodafone GmbH 7.09ms from Frankfurt am Main, DE
37.82.45.184 AS3320 Deutsche Telekom AG 18.81ms from Frankfurt am Main, DE
75.85.3.120 AS20001 Charter Communications Inc 4.38ms from Honolulu, US
69.72.102.40 AS393397 Lake Region Electric Cooperative, Inc 6.49ms from Kansas City, US
82.152.36.248 AS8851 GCI Network Solutions Limited 4.81ms from London, GB
83.37.230.8 AS3352 TELEFONICA DE ESPANA S.A.U. 9.86ms from Madrid, ES
34.129.129.136 AS396982 Google LLC 0.13ms from Melbourne, AU
177.197.96.248 AS26599 TELEFÔNICA BRASIL S.A 4.10ms from Osasco, BR
3.93.63.24 AS14618 Amazon.com, Inc. 0.40ms from Reston, US
218.169.132.184 AS3462 Data Communication Business Group 2.14ms from Taichung, TW
111.255.117.40 AS3462 Data Communication Business Group 4.42ms from Taichung, TW
208.96.79.40 AS11260 EastLink 11.05ms from Toronto, CA
122.177.126.168 AS24560 Bharti Airtel Ltd., Telemedia Services 13.17ms from Chennai, IN
51.195.176.56 AS16276 OVH SAS 0.06ms from Erith, GB
35.156.25.72 AS16509 Amazon.com, Inc. 0.14ms from Frankfurt am Main, DE
120.82.88.248 AS17816 China Unicom IP network China169 Guangdong province 7.07ms from Guangzhou, CN
118.68.252.200 AS18403 FPT Telecom Company 1.50ms from Hanoi, VN
138.113.200.72 AS54994 Meteverse Limited. 0.59ms from Hong Kong, HK

Traceroute

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

$
traceroute -a -n -q1 -f3 -m7 203.16.75.48
traceroute to 203.16.75.48 (203.16.75.48): 7 hops max, 52 byte packets
3 [AS7474] 59.154.57.32 182.314 ms
4 [AS7474] 220.101.27.198 183.725 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Mumbai, IN
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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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