110.21.0.0/16

AS4804 · Microplex PTY LTD

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Summary

Country	Australia
Domain	optus.net.au
ASN	AS4804
Parent Range	110.20.0.0/14
Registry	APNIC
ID	OPTUSINTERNET-AU

WHOIS Details

inetnum:        110.20.0.0 - 110.23.255.255
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:         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:          110.20.0.0/14
origin:         AS4804
descr:          Optus Internet Pty Ltd Building F, 3rd Floor 1 Lyonpark Road
mnt-by:         MAINT-AU-OPTUSINTERNET
last-modified:  2021-06-16T20:46:09Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 110.21.0.0/16

Range	ASN	Company	Num of IPs
110.20.0.0/14	AS4804	OPTUS INTERNET - RETAIL	262,144

Nearby Ranges

BGP prefixes that overlap with 110.0.0.0/8

Range	ASN	Company	Num of IPs
110.240.0.0/12	AS4837	China Unicom Hebei province network	1,048,576
110.8.0.0/13	AS17834	SK Broadband Co Ltd	524,288
110.8.0.0/13	AS9638	SK Broadband Co Ltd	524,288
110.80.0.0/13	AS4134	CHINANET FUJIAN PROVINCE NETWORK	524,288
110.184.0.0/13	AS4134	CHINANET Sichuan province network	524,288
110.56.0.0/13	AS9394	North Star Information Hi.tech Ltd. Co.	524,288
110.24.0.0/13	AS9674	Far EasTone Telecommunication Co., Ltd.	524,288
110.184.0.0/13	AS38283	CHINANET Sichuan province network	524,288
110.8.0.0/13	AS9318	SK Broadband Co Ltd	524,288
110.128.0.0/13	AS9824	JCOM Co., Ltd.	524,288
110.176.0.0/13	AS4134	CHINANET SHANXI PROVINCE NETWORK	524,288
110.80.0.0/13	AS133774	CHINANET FUJIAN PROVINCE NETWORK	524,288
110.80.0.0/13	AS133776	CHINANET FUJIAN PROVINCE NETWORK	524,288
110.80.0.0/13	AS58772	CHINANET FUJIAN PROVINCE NETWORK	524,288
110.184.0.0/13	AS139220	CHINANET Sichuan province network	524,288
110.144.0.0/13	AS1221	Telstra Limited	524,288
110.228.0.0/14	AS4837	China Unicom Hebei province network	262,144
110.20.0.0/14	AS4804	OPTUS INTERNET - RETAIL	262,144
110.152.0.0/14	AS4134	CHINANET xinjiang province network	262,144
110.88.0.0/14	AS4134	CHINANET FUJIAN PROVINCE NETWORK	262,144
110.16.0.0/14	AS139007	China Unicom InnerMongolia province network	262,144
110.16.0.0/14	AS4837	China Unicom InnerMongolia province network	262,144
110.72.0.0/15	AS4837	China Unicom Guangxi province network	131,072
110.166.0.0/15	AS4134	CHINANET Qinghai Province Network	131,072
110.52.0.0/15	AS4837	China Unicom HuNan province network	131,072
110.66.0.0/15	AS2527	Sony Network Communications Inc.	131,072
110.156.0.0/15	AS4134	CHINANET xinjiang province network	131,072
110.32.0.0/15	AS4804	OPTUS INTERNET - RETAIL	131,072
110.6.0.0/15	AS4837	China Unicom InnerMongolia province network	131,072
110.166.0.0/15	AS140061	CHINANET Qinghai Province Network	131,072
110.166.0.0/15	AS132225	CHINANET Qinghai Province Network	131,072
110.174.0.0/15	AS7545	TPG Internet Pty Ltd.	131,072
110.166.0.0/15	AS59223	CHINANET Qinghai Province Network	131,072
110.64.0.0/15	AS4538	China Education and Research Network	131,072
110.140.0.0/15	AS1221	Telstra Limited	131,072
110.51.0.0/16	AS45113	Shanxi Datong Coal Group Communication Co., Ltd	65,536
110.43.0.0/16	AS59019	Beijing Kingsoft Cloud Internet Technology Co., Ltd.	65,536
110.159.0.0/16	AS4788	TM TECHNOLOGY SERVICES SDN. BHD.	65,536
110.43.0.0/16	AS58466	Beijing Kingsoft Cloud Internet Technology Co., Ltd.	65,536
110.199.0.0/16	AS56046	China Mobile Communications Group Co., Ltd.	65,536
110.219.0.0/16	AS56046	China Mobile Communications Group Co., Ltd.	65,536
110.218.0.0/16	AS56046	China Mobile Communications Group Co., Ltd.	65,536
110.43.0.0/16	AS141679	Beijing Kingsoft Cloud Internet Technology Co., Ltd.	65,536
110.116.0.0/16	AS56046	China Mobile Communications Group Co., Ltd.	65,536
110.100.0.0/16	AS56046	China Mobile Communications Group Co., Ltd.	65,536
110.79.0.0/16	AS9293	HKNet Company Limited	65,536
110.43.0.0/16	AS4811	Beijing Kingsoft Cloud Internet Technology Co., Ltd.	65,536
110.233.0.0/16	AS2518	BIGLOBE Inc.	65,536
110.116.0.0/16	AS9808	China Mobile Communications Group Co., Ltd.	65,536
110.199.0.0/16	AS9808	China Mobile Communications Group Co., Ltd.	65,536

Hosted domains

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

IP Address	Domain	Domains on this IP
110.21.119.74	rudrax.com.au	1
110.21.244.3	exavius.net	1
110.21.191.37	dillury.net	1

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
110.21.144.1	AS4804 Microplex PTY LTD	`1.24ms` from Sydney, AU
110.21.167.217	AS4804 Microplex PTY LTD	`4.35ms` from Sydney, AU
110.21.199.100	AS4804 Microplex PTY LTD	`1.83ms` from Sydney, AU
110.21.195.203	AS4804 Microplex PTY LTD	`2.12ms` from Sydney, AU
110.21.213.191	AS4804 Microplex PTY LTD	`2.03ms` from Sydney, AU
110.21.193.98	AS4804 Microplex PTY LTD	`1.99ms` from Sydney, AU
110.21.224.1	AS4804 Microplex PTY LTD	`1.30ms` from Sydney, AU
110.21.192.1	AS4804 Microplex PTY LTD	`1.32ms` from Sydney, AU
110.21.214.153	AS4804 Microplex PTY LTD	`2.38ms` from Sydney, AU
110.21.194.7	AS4804 Microplex PTY LTD	`2.28ms` from Sydney, AU
110.21.196.176	AS4804 Microplex PTY LTD	`2.01ms` from Sydney, AU
110.21.242.206	AS4804 Microplex PTY LTD	`6.70ms` from Sydney, AU
110.21.145.239	AS4804 Microplex PTY LTD	`7.55ms` from Sydney, AU
110.21.197.0	AS4804 Microplex PTY LTD	`2.51ms` from Sydney, AU
110.21.150.138	AS4804 Microplex PTY LTD	`7.38ms` from Sydney, AU
110.21.240.1	AS4804 Microplex PTY LTD	`1.26ms` from Sydney, AU
110.21.208.1	AS4804 Microplex PTY LTD	`1.28ms` from Sydney, AU
110.21.146.98	AS4804 Microplex PTY LTD	`3.81ms` from Sydney, AU
110.21.243.93	AS4804 Microplex PTY LTD	`9.40ms` from Sydney, AU
110.21.227.214	AS4804 Microplex PTY LTD	`3.64ms` from Sydney, AU
110.21.176.1	AS4804 Microplex PTY LTD	`1.21ms` from Sydney, AU
110.21.147.62	AS4804 Microplex PTY LTD	`5.06ms` from Sydney, AU
110.21.244.3	AS4804 Microplex PTY LTD	`8.56ms` from Sydney, AU
110.21.148.83	AS4804 Microplex PTY LTD	`9.26ms` from Sydney, AU
110.21.198.99	AS4804 Microplex PTY LTD	`1.82ms` from Sydney, 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
197.205.92.48	AS36947 Telecom Algeria	`19.32ms` from Algiers, DZ
203.175.64.0	AS23674 Nayatel (Pvt) Ltd	`16.24ms` from Karachi, PK
151.224.79.128	AS5607 Sky UK Limited	`8.37ms` from London, GB
82.185.94.96	AS3269 Telecom Italia S.p.A.	`3.45ms` from Milan, IT
119.180.136.32	AS4837 CHINA UNICOM China169 Backbone	`6.12ms` from Qingdao, CN
115.4.109.144	AS4766 Korea Telecom	`1.56ms` from Seoul, KR
91.73.231.112	AS15802 Emirates Integrated Telecommunications Company PJSC	`3.61ms` from Dubai, AE
77.12.109.64	AS6805 Telefonica Germany GmbH & Co.OHG	`2.94ms` from Frankfurt am Main, DE
133.204.3.192	AS2518 BIGLOBE Inc.	`13.95ms` from Osaka, JP
188.112.169.128	AS20910 SIA BITE Latvija	`0.49ms` from Riga, LV
121.186.67.48	AS4766 Korea Telecom	`4.26ms` from Seoul, KR
39.184.117.32	AS56041 China Mobile communications corporation	`8.84ms` from Shanghai, CN
18.176.100.208	AS16509 Amazon.com, Inc.	`0.23ms` from Tokyo, JP
91.109.156.16	AS31214 TIS Dialog LLC	`6.99ms` from Vilnius, LT
82.156.252.192	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.97ms` from Beijing, CN
186.146.37.128	AS10620 Telmex Colombia S.A.	`17.09ms` from Bogota, CO
65.73.144.0	AS5650 Frontier Communications of America, Inc.	`8.32ms` from Chicago, US
113.176.235.128	AS45899 VNPT Corp	`9.02ms` from Da Nang, VN
103.68.118.128	AS131247 Infobd24 Systems	`5.25ms` from Dhaka, BD
73.23.23.48	AS7922 Comcast Cable Communications, LLC	`7.24ms` from Miami, US
80.80.38.144	AS42560 Telemach BH d.o.o. Sarajevo	`5.67ms` from Novi Travnik, BA
77.129.1.0	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`9.53ms` from Paris, FR
20.115.191.176	AS8075 Microsoft Corporation	`0.33ms` from Quincy, US
110.47.180.0	AS18313 LG HelloVision Corp.	`1.20ms` from Seoul, KR
118.236.203.80	AS2527 Sony Network Communications Inc.	`2.44ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -m4 110.21.12.207

traceroute to 110.21.12.207 (110.21.12.207): 4 hops max, 52 byte packets

1 [AS136258] 103.97.203.1 21.443 ms

2 *

3 *

4 *

Measurement taken from

IPinfo ProbeNet in Mumbai, IN

On December 28th 2025

What are IP address ranges?

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