1.43.128.0/18

AS4804 · Microplex PTY LTD

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Summary

Country	Australia
Domain	optus.net.au
ASN	AS4804
Parent Range	1.40.0.0/14
Registry	APNIC
ID	OPTUSINTERNET-AU

WHOIS Details

inetnum:        1.40.0.0 - 1.43.255.255
netname:        OPTUSINTERNET-AU
descr:          OPTUS INTERNET - RETAIL
descr:          INTERNET SERVICES
descr:          1 Lyonpark Road, Macquarie Park, NSW - 2113
country:        AU
org:            ORG-OIPL5-AP
admin-c:        OI3-AP
tech-c:         OI3-AP
abuse-c:        AO400-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-AU-OPTUSINTERNET
mnt-routes:     MAINT-AU-OPTUSINTERNET
mnt-irt:        IRT-OPTUSINTERNET-AU
last-modified:  2021-01-15T01:45:06Z
source:         APNIC

irt:            IRT-OPTUSINTERNET-AU
address:        1 Lyonpark Rd.
address:        Macquarie Park, NSW 2113
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        OI3-AP
tech-c:         OI3-AP
auth:           # Filtered
remarks:        [email protected] 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:         [email protected]
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:         [email protected]
admin-c:        OI3-AP
tech-c:         OI3-AP
nic-hdl:        AO400-AP
remarks:        Generated from irt object IRT-OPTUSINTERNET-AU
remarks:        [email protected] was validated on 2025-06-18
abuse-mailbox:  [email protected]
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:         [email protected]
admin-c:        OI1-AP
tech-c:         OI1-AP
nic-hdl:        OI3-AP
notify:         [email protected]
mnt-by:         MAINT-AU-OPTUSINTERNET
remarks:        send spam/abuse reports to [email protected]
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:          1.40.0.0/14
origin:         AS4804
descr:          Optus Internet Pty Ltd Building F, 3rd Floor 1 Lyonpark Road
mnt-by:         MAINT-AU-OPTUSINTERNET
last-modified:  2021-05-31T20:25:17Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 1.43.128.0/18

Range	ASN	Company	Num of IPs
1.40.0.0/14	AS4804	OPTUS INTERNET - RETAIL	262,144

Nearby Ranges

BGP prefixes that overlap with 1.43.0.0/16

Range	ASN	Company	Num of IPs
1.40.0.0/14	AS4804	OPTUS INTERNET - RETAIL	262,144

Hosted domains

There are 9 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
1.43.161.6	explogenn.com	6
1.43.160.6	vitaltransformation.org	2

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

Read more

Pingable IPs

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

IP Address	ASN	Details
1.43.160.1	AS4804 Microplex PTY LTD	`1.42ms` from Melbourne, AU
1.43.162.153	AS4804 Microplex PTY LTD	`7.54ms` from Melbourne, AU
1.43.144.1	AS4804 Microplex PTY LTD	`1.38ms` from Melbourne, AU
1.43.161.218	AS4804 Microplex PTY LTD	`5.41ms` from Melbourne, AU
1.43.152.1	AS4804 Microplex PTY LTD	`1.29ms` from Melbourne, AU
1.43.164.110	AS4804 Microplex PTY LTD	`6.04ms` from Melbourne, AU
1.43.167.161	AS4804 Microplex PTY LTD	`5.75ms` from Melbourne, AU
1.43.163.212	AS4804 Microplex PTY LTD	`6.16ms` from Melbourne, AU
1.43.166.253	AS4804 Microplex PTY LTD	`4.58ms` from Melbourne, AU
1.43.165.196	AS4804 Microplex PTY LTD	`5.75ms` 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
158.94.146.162	AS6079 RCN	`1.57ms` from Ashburn, US
119.253.34.34	AS4808 China Unicom Beijing Province Network	`3.33ms` from Beijing, CN
141.23.169.2	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`2.96ms` from Berlin, DE
162.240.196.242	AS46606 Unified Layer	`2.42ms` from Draper, US
91.73.223.178	AS15802 Emirates Integrated Telecommunications Company PJSC	`3.10ms` from Dubai, AE
213.115.251.146	AS8434 Telenor Sverige AB	`0.57ms` from Goeteborg, SE
92.232.116.130	AS5089 Virgin Media Limited	`12.17ms` from London, GB
73.194.145.178	AS7922 Comcast Cable Communications, LLC	`5.34ms` from New York City, US
23.47.85.130	AS16625 Akamai Technologies, Inc.	`0.31ms` from Osaka, JP
202.179.37.2	AS23831 NISIOWARI CATV CORPORATION	`3.71ms` from Osaka, JP
66.207.140.2	AS19261 aspStation, Inc.	`0.47ms` from Pittsburgh, US
27.201.197.50	AS4837 CHINA UNICOM China169 Backbone	`5.54ms` from Qingdao, CN
112.246.148.114	AS4837 CHINA UNICOM China169 Backbone	`6.43ms` from Qingdao, CN
38.33.238.226	AS54600 PEG TECH INC	`0.22ms` from San Jose, US
191.241.61.2	AS271158 Link Dedicado Fibra Optica Tv e Telefonia Ip LTDA	`4.82ms` from Sao Paulo, BR
203.78.161.178	AS10557 Connect Northwest Internet Services, LLC	`0.27ms` from Seattle, US
24.16.141.194	AS7922 Comcast Cable Communications, LLC	`5.75ms` from Seattle, US
183.113.46.178	AS4766 Korea Telecom	`1.91ms` from Seoul, KR
61.105.64.210	AS9318 SK Broadband Co Ltd	`7.52ms` from Seoul, KR
209.173.47.146	AS18474 Aeneas Internet Services	`11.43ms` from Atlanta, US
2.242.15.66	AS6805 Telefonica Germany GmbH & Co.OHG	`3.16ms` from Berlin, DE
200.49.92.34	AS11664 Techtel LMDS Comunicaciones Interactivas S.A.	`1.30ms` from Buenos Aires, AR
50.50.40.210	AS5650 Frontier Communications of America, Inc.	`13.31ms` from Chicago, US
75.196.85.34	AS6167 Verizon Business	`13.80ms` from Chicago, US
3.136.209.2	AS16509 Amazon.com, Inc.	`0.15ms` from Columbus, US

Traceroute

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

traceroute -a -n -q1 -f2 -m6 1.43.151.80

traceroute to 1.43.151.80 (1.43.151.80): 6 hops max, 52 byte packets

2 [AS33554] 208.71.115.13 0.685 ms

3 [AS33554] 67.21.224.105 1.239 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Toronto, CA

On December 6th 2025

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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