1.43.0.0/18

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 1.43.0.0/18

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 is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
1.43.8.186 bladedanxa.net 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

2,603 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
1.43.59.140 AS4804 Microplex PTY LTD 2.20ms from Melbourne, AU
1.43.51.177 AS4804 Microplex PTY LTD 2.14ms from Melbourne, AU
1.43.46.18 AS4804 Microplex PTY LTD 2.37ms from Melbourne, AU
1.43.57.239 AS4804 Microplex PTY LTD 2.09ms from Melbourne, AU
1.43.48.66 AS4804 Microplex PTY LTD 2.54ms from Melbourne, AU
1.43.62.58 AS4804 Microplex PTY LTD 2.61ms from Melbourne, AU
1.43.39.87 AS4804 Microplex PTY LTD 2.54ms from Melbourne, AU
1.43.41.240 AS4804 Microplex PTY LTD 2.83ms from Melbourne, AU
1.43.54.189 AS4804 Microplex PTY LTD 2.65ms from Melbourne, AU
1.43.50.125 AS4804 Microplex PTY LTD 2.35ms from Melbourne, AU
1.43.40.167 AS4804 Microplex PTY LTD 2.05ms from Melbourne, AU
1.43.44.177 AS4804 Microplex PTY LTD 2.23ms from Melbourne, AU
1.43.52.229 AS4804 Microplex PTY LTD 2.03ms from Melbourne, AU
1.43.58.140 AS4804 Microplex PTY LTD 2.14ms from Melbourne, AU
1.43.49.228 AS4804 Microplex PTY LTD 3.64ms from Melbourne, AU
1.43.55.162 AS4804 Microplex PTY LTD 2.48ms from Melbourne, AU
1.43.61.178 AS4804 Microplex PTY LTD 2.42ms from Melbourne, AU
1.43.47.243 AS4804 Microplex PTY LTD 2.49ms from Melbourne, AU
1.43.56.154 AS4804 Microplex PTY LTD 2.42ms from Melbourne, AU
1.43.42.119 AS4804 Microplex PTY LTD 1.87ms from Melbourne, AU
1.43.60.103 AS4804 Microplex PTY LTD 2.53ms from Melbourne, AU
1.43.38.145 AS4804 Microplex PTY LTD 2.23ms from Melbourne, AU
1.43.37.219 AS4804 Microplex PTY LTD 2.15ms from Melbourne, AU
1.43.45.97 AS4804 Microplex PTY LTD 2.23ms from Melbourne, AU
1.43.53.35 AS4804 Microplex PTY LTD 2.05ms 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
178.230.224.210 AS31615 Odido Netherlands B.V. 14.83ms from Amsterdam, NL
79.107.245.146 AS25472 Nova Telecommunications & Media Single Member S.A 9.77ms from Athens, GR
110.51.192.34 AS45113 Shanxi Datong Coal Group Communication Co., Ltd 13.52ms from Beijing, CN
44.229.234.130 AS16509 Amazon.com, Inc. 0.16ms from Boardman, US
50.219.47.66 AS7922 Comcast Cable Communications, LLC 2.62ms from Chicago, US
147.125.244.66 AS9304 HGC Global Communications Limited 2.23ms from Hong Kong, HK
73.6.255.18 AS7922 Comcast Cable Communications, LLC 4.63ms from Houston, US
113.228.29.242 AS4837 CHINA UNICOM China169 Backbone 4.46ms from Liaoyang, CN
77.222.41.162 AS44112 SpaceWeb Ltd 0.48ms from Saint Petersburg, RU
120.24.103.130 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.47ms from Shenzhen, CN
36.12.152.162 AS2516 KDDI CORPORATION 0.84ms from Tokyo, JP
178.190.191.98 AS8447 A1 Telekom Austria AG 10.34ms from Vienna, AT
111.5.104.2 AS24445 Henan Mobile Communications Co.,Ltd 3.39ms from Zhengzhou, CN
76.19.162.210 AS7922 Comcast Cable Communications, LLC 9.97ms from Boston, US
64.39.29.130 AS33070 Rackspace Hosting 1.08ms from Dallas, US
93.234.190.130 AS3320 Deutsche Telekom AG 3.70ms from Duesseldorf, DE
35.157.92.18 AS16509 Amazon.com, Inc. 0.13ms from Frankfurt am Main, DE
120.37.95.210 AS4134 CHINANET-BACKBONE 5.52ms from Fuzhou, CN
58.218.234.2 AS4134 CHINANET-BACKBONE 8.15ms from Huai'an, CN
83.45.67.82 AS3352 TELEFONICA DE ESPANA S.A.U. 8.77ms from Madrid, ES
94.156.169.98 AS210218 Open Fiber S.P.A. 8.93ms from Milan, IT
38.102.103.34 AS397468 Think On, Inc. 3.24ms from Montreal, CA
117.89.188.178 AS4134 CHINANET-BACKBONE 1.20ms from Nanjing, CN
180.140.5.82 AS4134 CHINANET-BACKBONE 3.19ms from Nanning, CN
37.193.116.146 AS31200 Novotelecom Ltd 1.23ms from Novosibirsk, RU

Traceroute

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

$
traceroute -a -n -q1 1.43.39.63
traceroute to 1.43.39.63 (1.43.39.63): 64 hops max, 52 byte packets
4 *
5 *
6 *
7 [AS4804] 1.43.39.63 12.392 ms
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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