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:         [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:          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
110.184.0.0/13	AS139220	CHINANET Sichuan province network	524,288
110.8.0.0/13	AS9318	SK Broadband Co Ltd	524,288
110.8.0.0/13	AS9638	SK Broadband Co Ltd	524,288
110.128.0.0/13	AS9824	JCOM Co., Ltd.	524,288
110.56.0.0/13	AS9394	North Star Information Hi.tech Ltd. Co.	524,288
110.80.0.0/13	AS133776	CHINANET FUJIAN PROVINCE NETWORK	524,288
110.80.0.0/13	AS133774	CHINANET FUJIAN PROVINCE NETWORK	524,288
110.24.0.0/13	AS9674	Far EasTone Telecommunication Co., Ltd.	524,288
110.144.0.0/13	AS1221	Telstra Limited	524,288
110.184.0.0/13	AS38283	CHINANET Sichuan province network	524,288
110.176.0.0/13	AS4134	CHINANET SHANXI PROVINCE NETWORK	524,288
110.80.0.0/13	AS4134	CHINANET FUJIAN PROVINCE NETWORK	524,288
110.80.0.0/13	AS58772	CHINANET FUJIAN PROVINCE NETWORK	524,288
110.184.0.0/13	AS4134	CHINANET Sichuan province network	524,288
110.8.0.0/13	AS17834	SK Broadband Co Ltd	524,288
110.88.0.0/14	AS4134	CHINANET FUJIAN PROVINCE NETWORK	262,144
110.152.0.0/14	AS4134	CHINANET xinjiang province network	262,144
110.228.0.0/14	AS4837	China Unicom Hebei province network	262,144
110.16.0.0/14	AS4837	China Unicom InnerMongolia province network	262,144
110.20.0.0/14	AS4804	OPTUS INTERNET - RETAIL	262,144
110.16.0.0/14	AS139007	China Unicom InnerMongolia province network	262,144
110.52.0.0/15	AS4837	China Unicom HuNan province network	131,072
110.140.0.0/15	AS1221	Telstra Limited	131,072
110.72.0.0/15	AS4837	China Unicom Guangxi province network	131,072
110.66.0.0/15	AS2527	Sony Network Communications Inc.	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
110.166.0.0/15	AS59223	CHINANET Qinghai Province Network	131,072
110.6.0.0/15	AS4837	China Unicom InnerMongolia province network	131,072
110.32.0.0/15	AS4804	OPTUS INTERNET - RETAIL	131,072
110.64.0.0/15	AS4538	China Education and Research Network	131,072
110.166.0.0/15	AS4134	CHINANET Qinghai Province Network	131,072
110.174.0.0/15	AS7545	TPG Internet Pty Ltd.	131,072
110.156.0.0/15	AS4134	CHINANET xinjiang province network	131,072
110.43.0.0/16	AS59019	Beijing Kingsoft Cloud Internet Technology Co., Ltd.	65,536
110.51.0.0/16	AS45113	Shanxi Datong Coal Group Communication Co., Ltd	65,536
110.43.0.0/16	AS58466	Beijing Kingsoft Cloud Internet Technology 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
110.164.0.0/16	AS45758	Triple T Broadband Public Company Limited	65,536
110.159.0.0/16	AS4788	TM TECHNOLOGY SERVICES SDN. BHD.	65,536
110.43.0.0/16	AS23724	Beijing Kingsoft Cloud Internet Technology Co., Ltd.	65,536
110.43.0.0/16	AS141679	Beijing Kingsoft Cloud Internet Technology Co., Ltd.	65,536
110.233.0.0/16	AS2518	BIGLOBE Inc.	65,536
110.169.0.0/17	AS17552	True WiFi by True Online	32,768
110.168.0.0/17	AS17552	TRUE BROADBAND	32,768
110.54.0.0/17	AS7679	QTnet,Inc.	32,768
110.45.0.0/17	AS38091	LG HelloVision Corp.	32,768
110.168.128.0/17	AS17552	TRUE BROADBAND	32,768

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
110.21.198.209	eecontrols.com.au	1
110.21.238.251	proit.technology	1
110.21.206.201	rumble.net.au	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

Read more

Pingable IPs

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

IP Address	ASN	Details
110.21.166.2	AS4804 Microplex PTY LTD	`5.64ms` from Sydney, AU
110.21.87.188	AS4804 Microplex PTY LTD	`7.16ms` from Sydney, AU
110.21.70.73	AS4804 Microplex PTY LTD	`2.06ms` from Sydney, AU
110.21.117.51	AS4804 Microplex PTY LTD	`2.29ms` from Sydney, AU
110.21.69.209	AS4804 Microplex PTY LTD	`5.51ms` from Sydney, AU
110.21.135.66	AS4804 Microplex PTY LTD	`2.53ms` from Sydney, AU
110.21.211.36	AS4804 Microplex PTY LTD	`2.27ms` from Sydney, AU
110.21.84.148	AS4804 Microplex PTY LTD	`10.39ms` from Sydney, AU
110.21.160.1	AS4804 Microplex PTY LTD	`1.31ms` from Sydney, AU
110.21.208.1	AS4804 Microplex PTY LTD	`1.24ms` from Sydney, AU
110.21.131.122	AS4804 Microplex PTY LTD	`1.42ms` from Sydney, AU
110.21.145.239	AS4804 Microplex PTY LTD	`7.36ms` from Sydney, AU
110.21.176.1	AS4804 Microplex PTY LTD	`1.28ms` from Sydney, AU
110.21.67.164	AS4804 Microplex PTY LTD	`5.25ms` from Sydney, AU
110.21.243.93	AS4804 Microplex PTY LTD	`9.51ms` from Sydney, AU
110.21.192.1	AS4804 Microplex PTY LTD	`1.23ms` from Sydney, AU
110.21.226.238	AS4804 Microplex PTY LTD	`31.21ms` from Sydney, AU
110.21.96.1	AS4804 Microplex PTY LTD	`1.36ms` from Sydney, AU
110.21.247.138	AS4804 Microplex PTY LTD	`6.69ms` from Sydney, AU
110.21.113.72	AS4804 Microplex PTY LTD	`2.25ms` from Sydney, AU
110.21.242.206	AS4804 Microplex PTY LTD	`8.05ms` from Sydney, AU
110.21.68.152	AS4804 Microplex PTY LTD	`1.98ms` from Sydney, AU
110.21.195.93	AS4804 Microplex PTY LTD	`6.19ms` from Sydney, AU
110.21.118.105	AS4804 Microplex PTY LTD	`2.59ms` from Sydney, AU
110.21.196.80	AS4804 Microplex PTY LTD	`6.21ms` 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
51.145.231.160	AS8075 Microsoft Corporation	`0.27ms` from Amsterdam, NL
195.191.216.240	AS50696 EasternGraphics GmbH	`8.08ms` from Berlin, DE
195.228.2.192	AS5483 Magyar Telekom Plc.	`0.78ms` from Budapest, HU
52.51.204.240	AS16509 Amazon.com, Inc.	`0.16ms` from Dublin, IE
93.237.183.64	AS3320 Deutsche Telekom AG	`3.26ms` from Hamburg, DE
87.156.150.224	AS3320 Deutsche Telekom AG	`2.73ms` from Hamburg, DE
103.216.160.48	AS135376 Rahanet Internet Service Provider	`14.03ms` from Kabul, AF
91.244.10.32	AS25133 LLC "McLaut-Invest"	`3.08ms` from Kyiv, UA
47.150.158.32	AS5650 Frontier Communications of America, Inc.	`3.07ms` from Los Angeles, US
72.188.37.240	AS33363 Charter Communications, Inc	`5.56ms` from Orlando, US
124.110.141.192	AS2519 ARTERIA Networks Corporation	`10.26ms` from Osaka, JP
118.10.129.160	AS4713 NTT DOCOMO BUSINESS,Inc.	`17.15ms` from Osaka, JP
20.201.167.224	AS8075 Microsoft Corporation	`2.80ms` from Phoenix, US
54.175.84.64	AS14618 Amazon.com, Inc.	`0.29ms` from Reston, US
173.230.149.240	AS63949 Akamai Connected Cloud	`0.15ms` from Santa Clara, US
59.1.190.112	AS4766 Korea Telecom	`4.68ms` from Seoul, KR
221.138.239.144	AS9318 SK Broadband Co Ltd	`2.06ms` from Seoul, KR
15.134.78.0	AS16509 Amazon.com, Inc.	`0.12ms` from Sydney, AU
46.198.242.16	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`1.07ms` from Athens, GR
108.207.135.192	AS7018 AT&T Enterprises, LLC	`6.51ms` from Atlanta, US
18.222.43.144	AS16509 Amazon.com, Inc.	`0.14ms` from Columbus, US
84.143.86.224	AS3320 Deutsche Telekom AG	`4.08ms` from Duesseldorf, DE
177.53.232.0	AS52667 Polibrás Brasil Software Ltda	`1.52ms` from Fortaleza, BR
57.144.123.48	AS32934 Facebook, Inc.	`0.32ms` from Hyderabad, IN
146.148.145.48	AS26658 HT	`0.28ms` from Los Angeles, US

Traceroute

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

traceroute -a -n -q1 -m4 110.21.13.205

traceroute to 110.21.13.205 (110.21.13.205): 4 hops max, 52 byte packets

1 [AS202105] 87.237.225.3 0.153 ms

2 *

3 *

4 *

Measurement taken from

IPinfo ProbeNet in Jeddah, SA

On December 6th 2025

What are IP address ranges?

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