161.43.192.0/20

AS7474  ·  SingTel Optus Pty Ltd

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Summary

Country Australia
Domain optus.com.au
ASN AS7474
Registry APNIC
ID OPTUSNET

WHOIS Details

inetnum:        161.43.0.0 - 161.43.255.255
netname:        OPTUSNET
descr:          imported inetnum object for OCPL
country:        AU
org:            ORG-SOPL2-AP
admin-c:        GW51-AP
tech-c:         GW51-AP
abuse-c:        AO399-AP
status:         ALLOCATED PORTABLE
remarks:        ----------
remarks:        imported from ARIN object:
remarks:        
remarks:        inetnum: 161.43.0.0 - 161.43.255.255
remarks:        netname: OPTUSNET
remarks:        org-id: OCPL
remarks:        status: assignment
remarks:        tech-c: GW311-ARIN
remarks:        reg-date: 1992-05-18
remarks:        changed: hostmaster@arin.net 19920518
remarks:        source: ARIN
remarks:        
remarks:        ----------
notify:         domain@optusnet.com.au
mnt-by:         APNIC-HM
mnt-lower:      MAINT-OPTUSCOM-AP
mnt-routes:     MAINT-OPTUSCOM-AP
mnt-irt:        IRT-OPTUSCOM-AU
last-modified:  2021-01-15T01:44:56Z
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:  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:         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

person:         Geoff Whelan
address:        OptusNet 25 Atchison St St Leonards, 2065
country:        AU
phone:          +61 2 1300 301 325
fax-no:         +61 2 9439 1760
e-mail:         domain@optusnet.com.au
nic-hdl:        GW51-AP
remarks:        ----------
remarks:        imported from ARIN object:
remarks:        
remarks:        poc-handle:  GW311-ARIN
remarks:        is-role:     N
remarks:        last-name:   Whelan
remarks:        first-name:  Geoff
remarks:        street:      OptusNet 25 Atchison St St Leonards, 2065
remarks:        country:     AU
remarks:        mailbox:     domain@optusnet.com.au
remarks:        fax-phone:   61 2 9439 1760
remarks:        bus-phone:   61 2 1300 301 325
remarks:        reg-date:    1992-05-18
remarks:        changed:     hostmaster@arin.poc 20010220
remarks:        source:      ARIN
remarks:        
remarks:        ----------
notify:         domain@optusnet.com.au
mnt-by:         MNT-OPTUSCOM-AU
last-modified:  2008-09-04T07:31:28Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 161.43.0.0/16

No nearby ranges found.

Hosted domains

There are 8 domain names hosted across 6 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
161.43.206.105 shacklem8.com.au 2
161.43.195.233 laemail.com.au 2
161.43.206.70 educad.com.au 1
161.43.200.233 rjh.net.au 1
161.43.204.87 f3alive.com.au 1
161.43.196.131 glenfyne.farm 1

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

1,479 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
161.43.207.153 AS7474 SingTel Optus Pty Ltd 12.84ms from Sydney, AU
161.43.192.122 AS7474 SingTel Optus Pty Ltd 14.44ms from Sydney, AU
161.43.195.245 AS7474 SingTel Optus Pty Ltd 9.18ms from Sydney, AU
161.43.203.86 AS7474 SingTel Optus Pty Ltd 13.20ms from Sydney, AU
161.43.206.97 AS7474 SingTel Optus Pty Ltd 14.38ms from Melbourne, AU
161.43.199.201 AS7474 SingTel Optus Pty Ltd 9.98ms from Sydney, AU
161.43.202.184 AS7474 SingTel Optus Pty Ltd 15.10ms from Sydney, AU
161.43.205.61 AS7474 SingTel Optus Pty Ltd 13.59ms from Sydney, AU
161.43.204.20 AS7474 SingTel Optus Pty Ltd 11.74ms from Sydney, AU
161.43.198.56 AS7474 SingTel Optus Pty Ltd 8.99ms from Sydney, AU
161.43.201.12 AS7474 SingTel Optus Pty Ltd 13.50ms from Sydney, AU
161.43.194.8 AS7474 SingTel Optus Pty Ltd 12.90ms from Sydney, AU
161.43.200.2 AS7474 SingTel Optus Pty Ltd 13.30ms from Sydney, AU
161.43.196.225 AS7474 SingTel Optus Pty Ltd 12.26ms from Sydney, AU
161.43.197.253 AS7474 SingTel Optus Pty Ltd 11.34ms from Melbourne, AU
161.43.193.220 AS7474 SingTel Optus Pty Ltd 10.57ms from Melbourne, AU

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
197.42.253.164 AS8452 TE-AS 18.85ms from Cairo, EG
24.41.34.132 AS7029 Windstream Communications LLC 9.57ms from Chicago, US
76.31.35.4 AS7922 Comcast Cable Communications, LLC 11.25ms from Houston, US
102.165.37.52 AS212238 Datacamp Limited 0.49ms from Los Angeles, US
173.211.88.4 AS21769 Colocation America Corporation 0.18ms from Los Angeles, US
83.106.51.196 AS5378 Vodafone Limited 1.96ms from Manchester, GB
88.54.175.244 AS3269 Telecom Italia S.p.A. 3.67ms from Milan, IT
173.21.173.84 AS30036 Mediacom Communications Corp 9.80ms from Minneapolis, US
69.206.2.164 AS12271 Charter Communications Inc 7.68ms from New York City, US
122.21.9.84 AS4713 NTT DOCOMO BUSINESS,Inc. 7.04ms from Osaka, JP
187.116.68.20 AS27699 TELEFÔNICA BRASIL S.A 2.76ms from Osasco, BR
211.110.185.100 AS45370 BROADBANDIDC 1.36ms from Seoul, KR
8.219.230.4 AS45102 Alibaba (US) Technology Co., Ltd. 0.51ms from Singapore, SG
31.15.47.228 AS1257 Tele2 Sverige AB 0.59ms from Stockholm, SE
202.250.224.20 AS2907 Research Organization of Information and Systems, National Institute of Informatics 2.93ms from Tokyo, JP
183.251.230.52 AS9808 China Mobile Communications Group Co., Ltd. 7.29ms from Xiamen, CN
128.136.87.180 AS13649 Flexential Colorado Corp. 1.05ms from Atlanta, US
97.148.233.68 AS6167 Verizon Business 17.26ms from Atlanta, US
187.147.178.244 AS8151 UNINET 12.31ms from Cancún, MX
1.29.43.228 AS4837 CHINA UNICOM China169 Backbone 6.37ms from Changchun, CN
209.190.74.68 AS10297 eNET Inc. 3.69ms from Cincinnati, US
24.79.111.52 AS6327 Shaw Communications 16.49ms from Edmonton, CA
79.211.159.132 AS3320 Deutsche Telekom AG 4.08ms from Hamburg, DE
185.40.88.68 AS51728 Seltimil Oy 0.48ms from Helsinki, FI
76.206.39.180 AS7018 AT&T Enterprises, LLC 2.74ms from Houston, US

Traceroute

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

$
traceroute -a -n -q1 -f3 161.43.205.156
traceroute to 161.43.205.156 (161.43.205.156): 64 hops max, 52 byte packets
3 [AS7474] 220.101.73.37 2.107 ms
4 *
5 *
6 [AS7474] 59.154.18.156 0.364 ms
7 [AS7474] 61.88.7.161 0.302 ms
8 [AS7474] 161.43.205.156 54.664 ms
Measurement taken from IPinfo ProbeNet in Sydney, AU
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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