203.0.31.0/24

AS7545 · TPG Telecom Limited

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Summary

Country	Australia
Domain	austin.org.au
ASN	AS7545
Registry	APNIC
ID	AUSTINHEALTH-AU

WHOIS Details

inetnum:        203.0.28.0 - 203.0.31.255
netname:        AUSTINHEALTH-AU
descr:          Austin Health
country:        AU
org:            ORG-AH11-AP
admin-c:        AHA19-AP
tech-c:         AHA19-AP
abuse-c:        AA2575-AP
status:         ASSIGNED 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-routes:     MAINT-AUSTINHEALTH-AU
mnt-irt:        IRT-AUSTINHEALTH-AU
last-modified:  2022-10-24T04:36:53Z
source:         APNIC

irt:            IRT-AUSTINHEALTH-AU
address:        145 Studley Rd, Heidelberg vic 3084
e-mail:         tsg@austin.org.au
abuse-mailbox:  tsg@austin.org.au
admin-c:        AHA19-AP
tech-c:         AHA19-AP
auth:           # Filtered
remarks:        tsg@austin.org.au was validated on 2025-12-11
mnt-by:         MAINT-AUSTINHEALTH-AU
last-modified:  2025-12-11T22:57:12Z
source:         APNIC

organisation:   ORG-AH11-AP
org-name:       Austin Health
org-type:       LIR
country:        AU
address:        145 Studley Rd
phone:          +61394965055
e-mail:         tsg@austin.org.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:19:03Z
source:         APNIC

role:           ABUSE AUSTINHEALTHAU
country:        ZZ
address:        145 Studley Rd, Heidelberg vic 3084
phone:          +000000000
e-mail:         tsg@austin.org.au
admin-c:        AHA19-AP
tech-c:         AHA19-AP
nic-hdl:        AA2575-AP
remarks:        Generated from irt object IRT-AUSTINHEALTH-AU
remarks:        tsg@austin.org.au was validated on 2025-12-11
abuse-mailbox:  tsg@austin.org.au
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-11T22:57:39Z
source:         APNIC

role:           Austin Health administrator
address:        145 Studley Rd, Heidelberg vic 3084
country:        AU
phone:          +61394965055
e-mail:         tsg@austin.org.au
admin-c:        AHA19-AP
tech-c:         AHA19-AP
nic-hdl:        AHA19-AP
mnt-by:         MAINT-AUSTINHEALTH-AU
last-modified:  2022-10-21T04:31:28Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.0.0.0/16

Range	ASN	Company	Num of IPs
203.0.116.0/22	AS18361	Australian Stock Exchange	1,024
203.0.124.0/22	AS23722	Newcastle Greater Mutual Group Ltd	1,024
203.0.228.0/22	AS133787	Primary Health Care	1,024
203.0.156.0/22	AS9408	G James Australia Pty Ltd	1,024
203.0.252.0/22	AS56227	Zurich Financial Services	1,024
203.0.168.0/23	AS396982	UniSuper Management Pty Ltd	512
203.0.155.0/24	AS45570	Network Presence	256
203.0.178.0/24	AS4739	iiNet Limited	256
203.0.141.0/24	AS56132	The Macfarlane Burnet Institute for Medical Research and Public Health Ltd	256
203.0.100.0/24	AS6262	CSIRO Division of Water Resources	256
203.0.88.0/24	AS6262	CSIRO Division of Information Technology	256
203.0.19.0/24	AS7575	Australian National University	256
203.0.89.0/24	AS7575	Australian Institute of Aboriginal and Torres Strait Islander Studies	256
203.0.40.0/24	AS10148	The University of Melbourne	256
203.0.80.0/24	AS9913	Internet Information Group	256
203.0.27.0/24	AS135668	Patrick Stevedores Operations Pty Ltd	256
203.0.73.0/24	AS137938	QBE Management Services Ltd	256
203.0.139.0/24	AS150788	Alternative Enterprises (HK) Limited	256
203.0.120.0/24	AS153720	Mark Delany	256
203.0.149.0/24	AS24008	Hansen Corporation	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
203.0.31.254	AS7545 TPG Telecom Limited	`1.61ms` 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
44.209.110.120	AS14618 Amazon.com, Inc.	`0.49ms` from Ashburn, US
75.245.137.216	AS6167 Verizon Business	`15.76ms` from Atlanta, US
91.7.185.40	AS3320 Deutsche Telekom AG	`6.22ms` from Berlin, DE
20.195.74.24	AS8075 Microsoft Corporation	`0.31ms` from Hong Kong, HK
45.205.51.152	AS40065 CNSERVERS LLC	`0.20ms` from Los Angeles, US
95.39.161.168	AS6739 Vodafone ONO AS	`4.02ms` from Madrid, ES
75.229.93.56	AS6167 Verizon Business	`16.20ms` from Miami, US
45.31.64.88	AS7018 AT&T Enterprises, LLC	`9.33ms` from Miami, US
151.42.119.216	AS1267 WIND TRE S.P.A.	`5.14ms` from Milan, IT
64.80.226.248	AS7029 Windstream Communications LLC	`5.86ms` from New York City, US
88.174.17.184	AS12322 Free SAS	`2.21ms` from Paris, FR
176.173.215.24	AS5410 Bouygues Telecom SA	`16.96ms` from Paris, FR
193.108.204.8	AS21014 Terna S.p.A.	`1.94ms` from Rome, IT
20.188.225.120	AS8075 Microsoft Corporation	`0.67ms` from Sydney, AU
153.232.134.104	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.51ms` from Tokyo, JP
206.220.189.8	AS394273 Airnet Wireless Inc.	`18.28ms` from Toronto, CA
77.168.223.40	AS1136 KPN B.V.	`2.48ms` from Amsterdam, NL
35.80.145.248	AS16509 Amazon.com, Inc.	`0.19ms` from Boardman, US
101.177.172.88	AS1221 Telstra Limited	`1.44ms` from Brisbane, AU
41.40.21.136	AS8452 TE-AS	`7.28ms` from Cairo, EG
131.0.185.152	AS28621 NetOeste Telecomunicações Ltda	`4.27ms` from Cascavel, BR
178.202.195.168	AS3209 Vodafone GmbH	`5.61ms` from Frankfurt am Main, DE
91.35.165.152	AS3320 Deutsche Telekom AG	`3.12ms` from Frankfurt am Main, DE
118.27.202.136	AS131392 GMO-Z.com Runsystem Joint Stock Company	`1.02ms` from Hanoi, VN
92.18.231.152	AS13285 TalkTalk Communications Limited	`1.95ms` from Manchester, GB

Traceroute

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

traceroute -a -n -q1 203.0.31.253

traceroute to 203.0.31.253 (203.0.31.253): 64 hops max, 52 byte packets

1 [AS15169] 142.250.224.113 0.715 ms

2 *

3 [AS7545] 27.32.160.141 1.938 ms

4 [AS9942] 203.220.216.26 1.072 ms

5 [AS7545] 60.242.38.246 1.508 ms

6 [AS7545] 203.0.31.253 1.758 ms

Measurement taken from

IPinfo ProbeNet in Melbourne, AU

On March 20th 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.

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