203.164.96.0/19

AS4804  ·  Microplex PTY LTD

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Summary

Country Australia
Domain optus.net.au
ASN AS4804
Registry APNIC
ID OPTUSINTERNET-AU

WHOIS Details

inetnum:        203.164.96.0 - 203.164.255.255
netname:        OPTUSINTERNET-AU
descr:          @Home Network Australia
descr:          @Home Network Australia intial HE and
descr:          Infrastructure allocations
country:        AU
org:            ORG-OIPL5-AP
admin-c:        OI3-AP
tech-c:         OI3-AP
abuse-c:        AO400-AP
status:         ALLOCATED PORTABLE
remarks:        For abuse issues, please email abuse@optushome.com.au
mnt-by:         APNIC-HM
mnt-lower:      MAINT-AU-OPTUSINTERNET
mnt-irt:        IRT-OPTUSINTERNET-AU
last-modified:  2021-01-15T01:45:07Z
source:         APNIC

irt:            IRT-OPTUSINTERNET-AU
address:        1 Lyonpark Rd.
address:        Macquarie Park, NSW 2113
e-mail:         abuse@optusnet.com.au
abuse-mailbox:  abuse@optusnet.com.au
admin-c:        OI3-AP
tech-c:         OI3-AP
auth:           # Filtered
remarks:        abuse@optusnet.com.au was validated on 2025-06-18
mnt-by:         MAINT-AU-OPTUSINTERNET
last-modified:  2025-11-18T00:26:27Z
source:         APNIC

organisation:   ORG-OIPL5-AP
org-name:       Optus Internet Pty Ltd
org-type:       LIR
country:        AU
address:        Building F, 3rd Floor
address:        1 Lyonpark Road
phone:          +61-2-8087-0020
fax-no:         +61-2-8085-5108
e-mail:         abuse@optusnet.com.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:50Z
source:         APNIC

role:           ABUSE OPTUSINTERNETAU
country:        ZZ
address:        1 Lyonpark Rd.
address:        Macquarie Park, NSW 2113
phone:          +000000000
e-mail:         abuse@optusnet.com.au
admin-c:        OI3-AP
tech-c:         OI3-AP
nic-hdl:        AO400-AP
remarks:        Generated from irt object IRT-OPTUSINTERNET-AU
remarks:        abuse@optusnet.com.au was validated on 2025-06-18
abuse-mailbox:  abuse@optusnet.com.au
mnt-by:         APNIC-ABUSE
last-modified:  2025-06-18T01:06:46Z
source:         APNIC

role:           Optus Internet
address:        1 Lyonpark Rd.
address:        Macquarie Park, NSW 2113
country:        AU
phone:          +61-2-8082 7800
fax-no:         +61-2-8082 7100
e-mail:         ipadmin@optus.net.au
admin-c:        OI1-AP
tech-c:         OI1-AP
nic-hdl:        OI3-AP
notify:         ipadmin@optus.net.au
mnt-by:         MAINT-AU-OPTUSINTERNET
remarks:        send spam/abuse reports to abuse@optusnet.com.au
remarks:        please use http://wq.apnic.net/apnic-bin/whois.pl
remarks:        to identify networks before sending reports and
remarks:        always include full headers/logs.
last-modified:  2021-09-07T23:35:56Z
source:         APNIC

route:          203.164.0.0/16
descr:          Route object for 203.164.0.0/16
country:        AU
origin:         AS4804
mnt-lower:      MAINT-AU-OPTUSINTERNET
mnt-routes:     MAINT-AU-OPTUSINTERNET
mnt-by:         MAINT-AU-OPTUSINTERNET
last-modified:  2025-07-18T01:44:57Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.164.0.0/16

Range ASN Company Num of IPs
203.164.160.0/19 AS4804 OPTUS INTERNET - RETAIL 8,192
203.164.32.0/19 AS4804 OPTUS INTERNET - RETAIL 8,192

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

4,146 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
203.164.123.186 AS4804 Microplex PTY LTD 11.47ms from Melbourne, AU
203.164.103.235 AS4804 Microplex PTY LTD 11.78ms from Melbourne, AU
203.164.120.70 AS4804 Microplex PTY LTD 11.59ms from Melbourne, AU
203.164.117.194 AS4804 Microplex PTY LTD 11.49ms from Melbourne, AU
203.164.116.142 AS4804 Microplex PTY LTD 11.68ms from Melbourne, AU
203.164.111.24 AS4804 Microplex PTY LTD 11.67ms from Melbourne, AU
203.164.115.201 AS4804 Microplex PTY LTD 11.56ms from Melbourne, AU
203.164.113.197 AS4804 Microplex PTY LTD 11.85ms from Melbourne, AU
203.164.98.179 AS4804 Microplex PTY LTD 11.55ms from Melbourne, AU
203.164.102.157 AS4804 Microplex PTY LTD 11.73ms from Melbourne, AU
203.164.110.5 AS4804 Microplex PTY LTD 11.68ms from Melbourne, AU
203.164.108.27 AS4804 Microplex PTY LTD 11.49ms from Melbourne, AU
203.164.114.196 AS4804 Microplex PTY LTD 11.79ms from Melbourne, AU
203.164.122.119 AS4804 Microplex PTY LTD 11.41ms from Melbourne, AU
203.164.104.240 AS4804 Microplex PTY LTD 11.88ms from Melbourne, AU
203.164.107.176 AS4804 Microplex PTY LTD 11.68ms from Melbourne, AU
203.164.97.253 AS4804 Microplex PTY LTD 11.53ms from Melbourne, AU
203.164.118.103 AS4804 Microplex PTY LTD 11.74ms from Melbourne, AU
203.164.112.63 AS4804 Microplex PTY LTD 11.69ms from Melbourne, AU
203.164.126.38 AS4804 Microplex PTY LTD 11.58ms from Melbourne, AU
203.164.105.231 AS4804 Microplex PTY LTD 11.79ms from Melbourne, AU
203.164.99.179 AS4804 Microplex PTY LTD 11.45ms from Melbourne, AU
203.164.106.6 AS4804 Microplex PTY LTD 11.74ms from Melbourne, AU
203.164.100.84 AS4804 Microplex PTY LTD 11.63ms from Melbourne, AU
203.164.109.233 AS4804 Microplex PTY LTD 11.58ms 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
5.193.167.67 AS5384 Emirates Internet 2.68ms from Al Fujairah City, AE
73.214.101.19 AS7922 Comcast Cable Communications, LLC 11.99ms from Ashburn, US
154.5.150.3 AS852 TELUS Communications Inc. 13.53ms from Calgary, CA
108.210.60.99 AS7018 AT&T Enterprises, LLC 10.66ms from Chicago, US
47.5.2.3 AS33588 Charter Communications LLC 9.00ms from Denver, US
84.249.88.211 AS1759 Telia Finland Oyj 3.26ms from Helsinki, FI
168.5.185.19 AS8 Rice University 4.13ms from Houston, US
178.80.234.115 AS35819 Etihad Etisalat, a joint stock company 4.03ms from Manama, BH
69.126.202.195 AS6128 Cablevision Systems Corp. 5.29ms from Newark, US
176.189.4.3 AS5410 Bouygues Telecom SA 1.16ms from Paris, FR
84.237.231.35 AS12578 SIA Tet 0.62ms from Riga, LV
211.206.173.67 AS9318 SK Broadband Co Ltd 1.76ms from Seoul, KR
110.12.67.3 AS9318 SK Broadband Co Ltd 1.67ms from Seoul, KR
110.174.157.131 AS7545 TPG Telecom Limited 0.70ms from Sydney, AU
219.98.134.211 AS2527 Sony Network Communications Inc. 2.02ms from Tokyo, JP
60.0.95.67 AS4837 CHINA UNICOM China169 Backbone 7.91ms from Beijing, CN
105.68.207.227 AS36884 Wana Corporate 5.53ms from Casablanca, MA
98.5.9.195 AS11351 Charter Communications Inc 18.38ms from Chicago, US
188.115.133.51 AS6876 TENET Scientific Production Enterprise LLC 3.36ms from Chisinau, MD
114.141.55.67 AS38771 PT Cyberplus Media Pratama 0.67ms from Jakarta, ID
78.149.37.163 AS13285 TalkTalk Communications Limited 4.52ms from London, GB
81.101.53.147 AS5089 Virgin Media Limited 8.66ms from London, GB
16.24.74.83 AS16509 Amazon.com, Inc. 0.15ms from Manama, BH
126.58.105.163 AS17676 SoftBank Corp. 8.06ms from Osaka, JP
151.31.102.3 AS1267 WIND TRE S.P.A. 4.51ms from Rome, IT

Traceroute

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

$
traceroute -a -n -q1 203.164.114.104
traceroute to 203.164.114.104 (203.164.114.104): 64 hops max, 52 byte packets
2 *
3 *
Measurement taken from IPinfo ProbeNet in Melbourne, 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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