1.44.0.0/21

AS4804 · Microplex PTY LTD

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Summary

Country	Australia
Domain	optus.com.au
ASN	AS4804
Parent Range	1.44.0.0/16
Registry	APNIC
ID	OPTUSCOM-AU

WHOIS Details

inetnum:        1.44.0.0 - 1.44.255.255
netname:        OPTUSCOM-AU
descr:          SingTel Optus Pty Ltd
descr:          Optus Macquarie Park (OCS)
descr:          Building A, Level 2
descr:          1 Lyonpark Road,
descr:          Macquarie Park
country:        AU
org:            ORG-SOPL2-AP
admin-c:        OA3-AP
tech-c:         OA3-AP
abuse-c:        AO399-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-OPTUSCOM-AP
mnt-routes:     MAINT-OPTUSCOM-AP
mnt-irt:        IRT-OPTUSCOM-AU
last-modified:  2021-01-15T01:44:59Z
source:         APNIC

irt:            IRT-OPTUSCOM-AU
address:        SingTel Optus Pty Ltd
address:        Optus Macquarie Park (OCS)
address:        1 Lyonpark Road
address:        Macquarie Park NSW 2113
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        OA3-AP
tech-c:         OA3-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-06-18
mnt-by:         MAINT-OPTUSCOM-AP
last-modified:  2025-11-18T00:26:33Z
source:         APNIC

organisation:   ORG-SOPL2-AP
org-name:       SingTel Optus Pty Ltd
org-type:       LIR
country:        AU
address:        Optus Macquarie Park (OCS)
address:        1 Lyonpark Road, Macquarie Park
phone:          +61-2-8082-7800
fax-no:         +61-2-8082-7100
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2025-09-25T13:05:45Z
source:         APNIC

role:           ABUSE OPTUSCOMAU
country:        ZZ
address:        SingTel Optus Pty Ltd
address:        Optus Macquarie Park (OCS)
address:        1 Lyonpark Road
address:        Macquarie Park NSW 2113
phone:          +000000000
e-mail:         [email protected]
admin-c:        OA3-AP
tech-c:         OA3-AP
nic-hdl:        AO399-AP
remarks:        Generated from irt object IRT-OPTUSCOM-AU
remarks:        [email protected] was validated on 2025-06-18
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-06-18T01:06:45Z
source:         APNIC

role:           OPTUS IP ADMINISTRATORS
address:        SingTel Optus Pty Ltd
address:        Optus Macquarie Park (OCS)
address:        1 Lyonpark Road
address:        Macquarie Park  NSW 2113
address:        AUSTRALIA
country:        AU
phone:          +61 2 8082 7800
fax-no:         +61 2 8082 7100
e-mail:         [email protected]
remarks:        send spam/abuse reports to [email protected]
remarks:        please use http://www.apnic.net/db/spam.html
remarks:        to identify networks before sending reports and
remarks:        always include full headers/logs.
admin-c:        NC8-AP
admin-c:        IA65-AP
tech-c:         NC8-AP
tech-c:         IA65-AP
tech-c:         OH23-AP
nic-hdl:        OA3-AP
notify:         [email protected]
mnt-by:         MAINT-OPTUSCOM-AP
last-modified:  2011-12-06T00:10:13Z
source:         APNIC

route:          1.44.0.0/16
origin:         AS7474
descr:          Singtel Optus Pty Ltd
mnt-by:         MAINT-OPTUSCOM-AP
last-modified:  2025-01-22T05:24:39Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 1.44.0.0/21

Range	ASN	Company	Num of IPs
1.44.0.0/16	AS4804	SingTel Optus Pty Ltd	65,536
1.44.0.0/16	AS7474	SingTel Optus Pty Ltd	65,536

Nearby Ranges

BGP prefixes that overlap with 1.44.0.0/16

Range	ASN	Company	Num of IPs
1.44.0.0/16	AS4804	SingTel Optus Pty Ltd	65,536
1.44.0.0/16	AS7474	SingTel Optus Pty Ltd	65,536
1.44.96.0/24	AS16509	OPTUSCOM	256

Hosted domains

There are no domains currently hosted on this ASN.

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

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

IP Address	ASN	Details
1.44.2.154	AS4804 Microplex PTY LTD	`13.04ms` from Sydney, AU
1.44.0.25	AS4804 Microplex PTY LTD	`8.06ms` from Sydney, AU
1.44.5.15	AS4804 Microplex PTY LTD	`9.63ms` from Sydney, AU
1.44.1.102	AS4804 Microplex PTY LTD	`12.79ms` from Sydney, AU
1.44.3.11	AS4804 Microplex PTY LTD	`12.21ms` from Sydney, AU
1.44.7.144	AS4804 Microplex PTY LTD	`12.68ms` from Sydney, AU
1.44.6.56	AS4804 Microplex PTY LTD	`9.04ms` from Sydney, AU
1.44.4.213	AS4804 Microplex PTY LTD	`8.92ms` 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
94.64.71.37	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`4.81ms` from Athens, GR
94.110.170.37	AS47377 Orange Belgium SA	`8.52ms` from Brussels, BE
89.36.153.133	AS42568 DIGITAL PROJECT SRL	`0.40ms` from Bucharest, RO
172.205.96.213	AS8075 Microsoft Corporation	`0.20ms` from Dublin, IE
115.220.168.53	AS4134 CHINANET-BACKBONE	`6.39ms` from Hangzhou, CN
84.67.14.181	AS5378 Vodafone Limited	`7.17ms` from London, GB
185.58.253.5	AS59740 City Networks Ltd	`1.78ms` from Moscow, RU
58.210.116.37	AS4134 CHINANET-BACKBONE	`4.66ms` from Nanjing, CN
73.65.250.213	AS7922 Comcast Cable Communications, LLC	`5.43ms` from Salt Lake City, US
203.109.9.245	AS4766 Korea Telecom	`1.02ms` from Seoul, KR
38.2.99.197	AS10971 Cass Cable TV, Inc.	`3.93ms` from St. Louis, US
112.1.66.197	AS56046 China Mobile communications corporation	`3.79ms` from Suzhou, CN
1.91.38.101	AS17429 BEIJING GEHUA CATV NETWORK CO.LTD	`10.20ms` from Beijing, CN
58.171.217.85	AS1221 Telstra Limited	`2.58ms` from Brisbane, AU
35.184.115.197	AS396982 Google LLC	`0.13ms` from Council Bluffs, US
96.125.180.5	AS13767 DataBank Holdings, Ltd.	`1.56ms` from Dallas, US
169.50.17.165	AS36351 IBM Cloud	`0.72ms` from Frankfurt am Main, DE
136.34.161.5	AS16591 Google Fiber Inc.	`0.78ms` from Kansas City, US
97.228.111.245	AS6167 Verizon Business	`14.67ms` from Los Angeles, US
87.171.181.37	AS3320 Deutsche Telekom AG	`1.90ms` from Nuernberg, DE
126.140.25.165	AS17676 SoftBank Corp.	`4.06ms` from Osaka, JP
78.203.133.117	AS12322 Free SAS	`4.34ms` from Paris, FR
65.110.89.37	AS14992 NewtekOne, Inc.	`1.93ms` from Phoenix, US
125.147.254.5	AS4766 Korea Telecom	`1.61ms` from Seoul, KR
220.125.44.37	AS4766 Korea Telecom	`4.69ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 1.44.2.192

traceroute to 1.44.2.192 (1.44.2.192): 64 hops max, 52 byte packets

1 [AS141995] 154.26.153.11 0.298 ms

2 *

3 *

4 *

5 *

6 [AS7474] 59.154.57.206 15.449 ms

7 [AS7474] 119.225.2.82 1.283 ms

8 *

9 [AS4804] 210.49.118.110 10.59 ms

10 *

11 [AS4804] 1.44.2.192 27.826 ms

Measurement taken from

IPinfo ProbeNet in Sydney, AU

On December 6th 2025

What are IP address ranges?

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