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Summary

Country	Australia
Domain	optus.com.au
ASN	AS7474
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:         abuse@optusnet.com.au
abuse-mailbox:  abuse@optusnet.com.au
admin-c:        OA3-AP
tech-c:         OA3-AP
auth:           # Filtered
remarks:        abuse@optusnet.com.au was validated on 2025-12-23
mnt-by:         MAINT-OPTUSCOM-AP
last-modified:  2026-02-16T00:08:15Z
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:         irr-admin@optus.com.au
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:         abuse@optusnet.com.au
admin-c:        OA3-AP
tech-c:         OA3-AP
nic-hdl:        AO399-AP
remarks:        Generated from irt object IRT-OPTUSCOM-AU
remarks:        abuse@optusnet.com.au was validated on 2025-12-23
abuse-mailbox:  abuse@optusnet.com.au
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-23T22:44:48Z
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:         ipadmin@optus.net.au
remarks:        send spam/abuse reports to abuse@optus.net.au
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:         hostmaster@optus.net.au
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 1.44.166.0/23

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

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

IP Address	ASN	Details
1.44.167.64	AS7474 SingTel Optus Pty Ltd	`16.01ms` from Melbourne, AU
1.44.166.218	AS7474 SingTel Optus Pty Ltd	`18.12ms` 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
190.9.9.151	AS22501 Cooperativa Telefonica Carlos Tejedor Ltda.	`9.24ms` from Buenos Aires, AR
41.42.19.87	AS8452 TE-AS	`5.32ms` from Cairo, EG
168.62.108.151	AS8075 Microsoft Corporation	`0.18ms` from Chicago, US
88.153.5.23	AS3209 Vodafone GmbH	`7.13ms` from Duesseldorf, DE
187.133.186.23	AS8151 UNINET	`5.27ms` from Guadalajara, MX
119.121.135.199	AS4134 CHINANET BACKBONE	`3.04ms` from Guangzhou, CN
109.51.56.103	AS2860 NOS COMUNICACOES, S.A.	`2.91ms` from Lisbon, PT
185.50.45.39	AS198066 Grupo Loading Systems, S.L.	`7.44ms` from Madrid, ES
75.72.13.199	AS7922 Comcast Cable Communications, LLC	`6.23ms` from Minneapolis, US
44.219.52.119	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
95.238.235.71	AS3269 Telecom Italia S.p.A.	`4.81ms` from Rome, IT
79.26.231.183	AS3269 Telecom Italia S.p.A.	`5.20ms` from Rome, IT
24.199.72.39	AS14061 DigitalOcean, LLC	`0.19ms` from Santa Clara, US
5.223.10.151	AS215859 Hetzner Online GmbH	`0.11ms` from Singapore, SG
1.34.108.231	AS3462 Data Communication Business Group	`0.71ms` from Taipei, TW
138.124.4.23	AS41745 Baykov Ilya Sergeevich	`0.24ms` from Tallinn, EE
72.15.198.39	AS13649 Flexential Colorado Corp.	`9.72ms` from Ashburn, US
78.23.90.103	AS6848 Telenet BV	`7.29ms` from Brussels, BE
177.5.32.215	AS8167 V tal	`0.80ms` from Curitiba, BR
3.171.136.199	AS16509 Amazon.com, Inc.	`0.14ms` from New York City, US
72.88.221.23	AS701 Verizon Business	`1.38ms` from New York City, US
37.195.26.151	AS31200 Novotelecom Ltd	`1.76ms` from Novosibirsk, RU
62.160.78.199	AS3215 Orange S.A.	`0.80ms` from Paris, FR
187.104.71.7	AS28573 Claro NXT Telecomunicacoes Ltda	`6.59ms` from Rio de Janeiro, BR
87.21.153.103	AS3269 Telecom Italia S.p.A.	`5.28ms` from Rome, IT

Traceroute

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

traceroute -a -n -q1 -f9 1.44.166.126

traceroute to 1.44.166.126 (1.44.166.126): 64 hops max, 52 byte packets

9 [AS2764] 203.8.177.106 4.784 ms

10 [AS7474] 61.88.33.5 5.995 ms

11 *

12 *

13 *

14 *

15 [AS7474] 59.154.18.96 6.55 ms

16 [AS7474] 161.43.118.10 3.597 ms

17 *

18 [AS7474] 1.44.166.126 79.633 ms

Measurement taken from

IPinfo ProbeNet in Melbourne, AU

On May 4th 2026

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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