175.37.0.0/16

AS4804  ·  Microplex PTY LTD

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Summary

Country Australia
Domain optus.net.au
ASN AS4804
Parent Range 175.32.0.0/13
Registry APNIC
ID OPTUSINTERNET-AU

WHOIS Details

inetnum:        175.32.0.0 - 175.39.255.255
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:  2021-01-15T01:45:07Z
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 2025-12-23
mnt-by:         MAINT-AU-OPTUSINTERNET
last-modified:  2025-12-23T22:44:35Z
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 2025-12-23
abuse-mailbox:  abuse@optusnet.com.au
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-23T22:44:46Z
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:          175.32.0.0/13
origin:         AS4804
descr:          Optus Internet Pty Ltd Building F, 3rd Floor 1 Lyonpark Road
mnt-by:         MAINT-AU-OPTUSINTERNET
last-modified:  2021-07-09T04:16:47Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 175.37.0.0/16

Range ASN Company Num of IPs
175.32.0.0/13 AS4804 OPTUS INTERNET - RETAIL 524,288

Nearby Ranges

BGP prefixes that overlap with 175.0.0.0/8

Range ASN Company Num of IPs
175.0.0.0/12 AS151823 CHINANET HUNAN PROVINCE NETWORK 1,048,576
175.160.0.0/12 AS4837 CHINA UNICOM Liaoning province network 1,048,576
175.0.0.0/12 AS4134 CHINANET HUNAN PROVINCE NETWORK 1,048,576
175.0.0.0/12 AS63835 CHINANET HUNAN PROVINCE NETWORK 1,048,576
175.0.0.0/12 AS63838 CHINANET HUNAN PROVINCE NETWORK 1,048,576
175.112.0.0/12 AS9318 SK Broadband Co Ltd 1,048,576
175.32.0.0/13 AS4804 OPTUS INTERNET - RETAIL 524,288
175.136.0.0/13 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 524,288
175.16.0.0/13 AS4837 China Unicom Jilin province network 524,288
175.208.0.0/13 AS4766 Korea Telecom 524,288
175.148.0.0/14 AS4837 CHINA UNICOM Liaoning province network 262,144
175.152.0.0/14 AS4837 China Unicom SiChuan province network 262,144
175.96.0.0/14 AS131628 Taiwan Fixed Network CO.,LTD. 262,144
175.96.0.0/14 AS9924 Taiwan Fixed Network CO.,LTD. 262,144
175.30.0.0/15 AS4134 CHINANET Jilin province network 131,072
175.186.0.0/15 AS4538 China Education and Research Network 131,072
175.104.0.0/15 AS10013 FreeBit Co., Ltd. 131,072
175.146.0.0/15 AS4837 CHINA UNICOM Liaoning province network 131,072
175.144.0.0/15 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 131,072
175.42.0.0/15 AS4837 China Unicom Fujian Province Network 131,072
175.177.0.0/16 AS9365 its communications Inc. 65,536
175.156.0.0/16 AS4773 M1 LIMITED 65,536
175.144.0.0/16 AS4788 TMNST 65,536
175.145.0.0/16 AS4788 TMNST 65,536
175.157.0.0/16 AS18001 Dialog Axiata PLC. 65,536
175.24.0.0/16 AS45090 Tencent cloud computing (Beijing) Co., Ltd. 65,536
175.178.0.0/16 AS45090 Tencent cloud computing (Beijing) Co., Ltd. 65,536
175.141.0.0/16 AS4788 TMNST 65,536
175.139.0.0/16 AS4788 TMNST 65,536
175.140.0.0/16 AS4788 TMNST 65,536
175.138.0.0/16 AS4788 TMNST 65,536
175.143.0.0/16 AS4788 TMNST 65,536
175.142.0.0/16 AS4788 TMNST 65,536
175.136.0.0/16 AS4788 TMNST 65,536
175.137.0.0/16 AS4788 TMNST 65,536
175.44.0.0/16 AS4837 China Unicom Fujian Province Network 65,536
175.27.0.0/16 AS45090 Tencent cloud computing (Beijing) Co., Ltd. 65,536
175.25.0.0/16 AS23724 Beijing SHUJUJIA 65,536
175.25.0.0/16 AS56019 Beijing SHUJUJIA 65,536
175.185.0.0/16 AS4538 China Education and Research Network 65,536
175.100.0.0/17 AS38623 VIETTEL (CAMBODIA) PTE., LTD. 32,768
175.28.128.0/17 AS7679 QTnet,Inc. 32,768
175.106.128.0/17 AS4837 Zhongyuan Petroleum Explore Bureau Communication Company 32,768
175.176.0.0/17 AS10139 Smart Broadband Incorporated 32,768
175.110.128.0/17 AS25019 Saudi Telecom Company JSC 32,768
175.156.128.0/17 AS4773 M1 Ltd 32,768
175.184.0.0/17 AS2510 FUJITSU LIMITED 32,768
175.179.128.0/17 AS2510 FUJITSU LIMITED 32,768
175.45.64.0/18 AS4826 VOCUS PTY LTD 16,384
175.111.192.0/18 AS9505 International Business Group, 16,384

Hosted domains

There are 11 domain names hosted across 10 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
175.37.99.189 ashmatrix.click 1
175.37.5.216 family360.me 1
175.37.214.128 vk3vo.org 1
175.37.9.192 jaydensumner.com.au 1
175.37.75.225 lolagon.com 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

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

IP Address ASN Details
175.37.133.248 AS4804 Microplex PTY LTD 4.05ms from Melbourne, AU
175.37.170.64 AS4804 Microplex PTY LTD 5.01ms from Melbourne, AU
175.37.209.182 AS4804 Microplex PTY LTD 4.13ms from Melbourne, AU
175.37.204.16 AS4804 Microplex PTY LTD 4.31ms from Melbourne, AU
175.37.210.248 AS4804 Microplex PTY LTD 4.55ms from Melbourne, AU
175.37.140.183 AS4804 Microplex PTY LTD 3.91ms from Melbourne, AU
175.37.215.89 AS4804 Microplex PTY LTD 3.86ms from Melbourne, AU
175.37.134.38 AS4804 Microplex PTY LTD 3.67ms from Melbourne, AU
175.37.158.0 AS4804 Microplex PTY LTD 6.98ms from Melbourne, AU
175.37.246.142 AS4804 Microplex PTY LTD 15.47ms from Melbourne, AU
175.37.143.130 AS4804 Microplex PTY LTD 3.98ms from Melbourne, AU
175.37.200.1 AS4804 Microplex PTY LTD 1.33ms from Melbourne, AU
175.37.244.157 AS4804 Microplex PTY LTD 5.29ms from Melbourne, AU
175.37.220.34 AS4804 Microplex PTY LTD 2.65ms from Melbourne, AU
175.37.188.239 AS4804 Microplex PTY LTD 3.15ms from Melbourne, AU
175.37.171.98 AS4804 Microplex PTY LTD 10.11ms from Melbourne, AU
175.37.137.45 AS4804 Microplex PTY LTD 11.35ms from Melbourne, AU
175.37.136.1 AS4804 Microplex PTY LTD 1.46ms from Melbourne, AU
175.37.172.234 AS4804 Microplex PTY LTD 2.34ms from Melbourne, AU
175.37.221.180 AS4804 Microplex PTY LTD 4.03ms from Melbourne, AU
175.37.218.209 AS4804 Microplex PTY LTD 5.41ms from Melbourne, AU
175.37.187.213 AS4804 Microplex PTY LTD 3.59ms from Melbourne, AU
175.37.180.206 AS4804 Microplex PTY LTD 10.60ms from Melbourne, AU
175.37.240.1 AS4804 Microplex PTY LTD 1.32ms from Melbourne, AU
175.37.211.165 AS4804 Microplex PTY LTD 4.00ms 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
3.219.131.80 AS14618 Amazon.com, Inc. 0.50ms from Ashburn, US
91.191.14.32 AS35567 DASTO semtel d.o.o. 5.13ms from Belgrade, RS
73.249.48.128 AS7922 Comcast Cable Communications, LLC 6.81ms from Boston, US
172.232.8.96 AS63949 Akamai Connected Cloud 0.29ms from Chicago, US
154.124.38.192 AS8346 SONATEL-AS Autonomous System 2.67ms from Dakar, SN
134.199.191.144 AS14061 DigitalOcean, LLC 0.10ms from Frankfurt am Main, DE
4.225.51.128 AS8075 Microsoft Corporation 0.20ms from Gaevle, SE
88.22.3.80 AS3352 TELEFONICA DE ESPANA S.A.U. 10.79ms from Madrid, ES
84.123.2.64 AS6739 VODAFONE ONO, S.A. 9.37ms from Madrid, ES
82.54.183.144 AS3269 Telecom Italia S.p.A. 4.57ms from Milan, IT
222.84.197.240 AS4134 CHINANET-BACKBONE 4.42ms from Nanning, CN
46.105.134.128 AS16276 OVH SAS 0.09ms from Roubaix, FR
98.35.143.112 AS7922 Comcast Cable Communications, LLC 2.60ms from San Jose, US
117.52.138.176 AS23576 NAVER Cloud Corp. 1.09ms from Seoul, KR
1.241.63.128 AS9318 SK Broadband Co Ltd 1.91ms from Seoul, KR
138.2.81.32 AS31898 Oracle Corporation 0.14ms from Singapore, SG
171.159.248.0 AS10794 Bank of America, National Association 5.16ms from Ashburn, US
182.71.161.64 AS9498 BHARTI Airtel Ltd. 1.04ms from Delhi, IN
20.9.91.208 AS8075 Microsoft Corporation 0.21ms from Des Moines, US
4.210.102.112 AS8075 Microsoft Corporation 0.15ms from Dublin, IE
79.213.32.224 AS3320 Deutsche Telekom AG 7.33ms from Frankfurt am Main, DE
27.79.21.96 AS7552 Viettel Group 9.81ms from Ho Chi Minh City, VN
211.93.79.0 AS4837 CHINA UNICOM China169 Backbone 9.83ms from Liaoyang, CN
130.194.217.32 AS56132 Monash University, 2.40ms from Melbourne, AU
188.68.96.16 AS29124 Iskratelecom JSC 0.78ms from Moscow, RU

Traceroute

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

$
traceroute -a -n -q1 175.37.68.179
traceroute to 175.37.68.179 (175.37.68.179): 64 hops max, 52 byte packets
4 *
6 *
7 [AS4804] 175.37.68.179 8.349 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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