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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        AHA19-AP
tech-c:         AHA19-AP
auth:           # Filtered
remarks:        [email protected] 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:         [email protected]
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:         [email protected]
admin-c:        AHA19-AP
tech-c:         AHA19-AP
nic-hdl:        AA2575-AP
remarks:        Generated from irt object IRT-AUSTINHEALTH-AU
remarks:        [email protected] was validated on 2025-12-11
abuse-mailbox:  [email protected]
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:         [email protected]
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
203.0.124.0/22	AS23722	Newcastle Greater Mutual Group Ltd	1,024
203.0.116.0/22	AS18361	Australian Stock Exchange	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
203.0.8.0/23	AS47377	Legaco Networks B.V.	512
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	`1.72ms` 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
38.137.235.8	AS263767 CORPORACIÓN GALA IT, C.A.	`0.54ms` from Caracas, VE
107.12.172.232	AS11426 Charter Communications Inc	`17.21ms` from Charlotte, US
69.181.89.104	AS7922 Comcast Cable Communications, LLC	`5.50ms` from Fremont, US
38.90.1.104	AS138571 SUPERCLOUDS LIMITED	`1.42ms` from Hong Kong, HK
109.229.72.88	AS15673 Teleseti Plus Ltd.	`5.04ms` from Saint Petersburg, RU
93.89.113.88	AS52157 NEAS ENERGI TELEKOM AS	`9.93ms` from Sandefjord, NO
194.82.34.248	AS786 Jisc Services Limited	`7.10ms` from Sheffield, GB
13.210.25.40	AS16509 Amazon.com, Inc.	`0.10ms` from Sydney, AU
20.110.193.120	AS8075 Microsoft Corporation	`0.35ms` from Boydton, US
89.45.161.248	AS42568 DIGITAL PROJECT SRL	`0.42ms` from Bucharest, RO
3.142.175.248	AS16509 Amazon.com, Inc.	`0.17ms` from Columbus, US
69.162.70.152	AS46475 Limestone Networks, Inc.	`0.27ms` from Dallas, US
108.254.67.184	AS7018 AT&T Enterprises, LLC	`8.55ms` from Houston, US
59.145.95.24	AS9498 BHARTI Airtel Ltd.	`2.41ms` from Hyderabad, IN
94.63.61.120	AS12353 Vodafone Portugal	`2.20ms` from Lisbon, PT
193.23.49.248	AS31060 DOBA Fakulteta	`2.38ms` from Ljubljana, SI
204.100.184.40	AS18558 Riverside County Office of Education	`3.16ms` from Los Angeles, US
117.178.90.88	AS56045 China Mobile communications corporation	`6.12ms` from Nanchang, CN
115.37.227.24	AS18126 Chubu Telecommunications Company, Inc.	`4.40ms` from Osaka, JP
183.76.123.56	AS4685 Asahi Net	`1.91ms` from Osaka, JP
177.170.251.200	AS26599 TELEFÔNICA BRASIL S.A	`5.16ms` from Osasco, BR
103.229.7.24	AS133438 St John Ambulance Western Australia Ltd.	`0.95ms` from Perth, AU
73.195.103.152	AS7922 Comcast Cable Communications, LLC	`5.66ms` from Secaucus, US
211.179.231.152	AS9318 SK Broadband Co Ltd	`7.53ms` from Seoul, KR
220.230.7.216	AS9457 DREAMLINE CO.	`2.27ms` 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 203.0.31.253

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

1 [AS15169] 142.250.224.121 1.383 ms

2 *

3 [AS7545] 27.32.160.25 2.366 ms

4 [AS9942] 203.220.216.22 2.252 ms

5 [AS7545] 60.242.38.246 2.155 ms

6 [AS7545] 203.0.31.253 2.403 ms

Measurement taken from

IPinfo ProbeNet in Melbourne, AU

On December 20th 2025

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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