203.18.35.0/24

AS1221 · Telstra Limited

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Summary

Country	Australia
Domain	dspl.com.au
ASN	AS1221
Registry	APNIC
ID	CONSPATHOLOGY-AU

WHOIS Details

inetnum:        203.18.34.0 - 203.18.35.255
netname:        CONSPATHOLOGY-AU
descr:          Consultant Pathology Services
descr:          2-4 Kirksway Place
descr:          Hobart
descr:          TAS 7000
country:        AU
org:            ORG-SH3-AP
admin-c:        JA329-AP
tech-c:         JA329-AP
abuse-c:        AS2642-AP
status:         ASSIGNED PORTABLE
mnt-by:         APNIC-HM
mnt-routes:     MAINT-SONICHEALTHCARE-NON-AU
mnt-irt:        IRT-SONICHEALTHCARE-NON-AU
last-modified:  2021-09-02T01:31:53Z
source:         APNIC

irt:            IRT-SONICHEALTHCARE-NON-AU
address:        Sonic Healthcare Limited
address:        14 Giffnock Avenue
address:        Macquarie Park
address:        NSW 2113
e-mail:         abuse@sonichealthcare.com
abuse-mailbox:  abuse@sonichealthcare.com
admin-c:        JA329-AP
tech-c:         JA329-AP
auth:           # Filtered
remarks:        abuse@sonichealthcare.com was validated on 2025-12-01
mnt-by:         MAINT-AU-JA329-AP
last-modified:  2025-12-01T21:43:20Z
source:         APNIC

organisation:   ORG-SH3-AP
org-name:       Sonic Healthcare Limited
org-type:       LIR
country:        AU
address:        14 Giffnock Rd
phone:          +61-2-9855-5444
fax-no:         +61-2-9878-5066
e-mail:         SIGOPS.SPOC@sonichealthcare.com.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:06Z
source:         APNIC

role:           ABUSE SONICHEALTHCARENONAU
country:        ZZ
address:        Sonic Healthcare Limited
address:        14 Giffnock Avenue
address:        Macquarie Park
address:        NSW 2113
phone:          +000000000
e-mail:         abuse@sonichealthcare.com
admin-c:        JA329-AP
tech-c:         JA329-AP
nic-hdl:        AS2642-AP
remarks:        Generated from irt object IRT-SONICHEALTHCARE-NON-AU
remarks:        abuse@sonichealthcare.com was validated on 2025-12-01
abuse-mailbox:  abuse@sonichealthcare.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-01T21:43:37Z
source:         APNIC

person:         Jamie Allison
address:        Diagnostic Services Pty Ltd
address:        2-4 Kirksway Place
address:        Hobart
address:        TAS 7000
country:        AU
phone:          +61 3 6237 1292
phone:          +61 3 6237 1208
e-mail:         jamiea@dspl.com.au
nic-hdl:        JA329-AP
remarks:        Network Manager
remarks:        This data originated from AUNIC, and was copied as part of
remarks:        the AUNIC to APNIC migration.  http://www.apnic.net/db/aunic/
remarks:        Original nic-hdl in AUNIC: JA329-AU
mnt-by:         MAINT-AU-JA329-AP
last-modified:  2012-02-01T06:01:24Z
source:         APNIC

route:          203.18.34.0/23
origin:         AS1221
descr:          Sonic Healthcare 14 Giffnock Rd
mnt-by:         MAINT-SONICHEALTHCARE-NON-AU
last-modified:  2021-09-02T01:35:29Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.18.0.0/16

Range	ASN	Company	Num of IPs
203.18.112.0/20	AS1221	Telstra Limited	4,096
203.18.216.0/21	AS38600	Smart Axiata Co., Ltd.	2,048
203.18.88.0/22	AS153162	Gadens	1,024
203.18.108.0/23	AS9650	CITEC	512
203.18.242.0/23	AS136000	LYNHAM NETWORKS PTY. LTD	512
203.18.156.0/23	AS152617	PPTECH co., ltd.	512
203.18.158.0/23	AS154109	Hosting Oxygen	512
203.18.96.0/23	AS37978	Launceston City Council	512
203.18.212.0/23	AS4826	VOCUS PTY LTD	512
203.18.60.0/23	AS6262	CSIRO Marine Labs, Hobart	512
203.18.184.0/23	AS9328	DEPARTMENT OF HOUSING AND WORKS	512
203.18.54.0/24	AS17378	Thales Australia	256
203.18.58.0/24	AS17477	Schwartz Family Company	256
203.18.26.0/24	AS24222	RR Donnelley India Outsource Private Limited	256
203.18.11.0/24	AS2764	Wigtown Bear Pty Ltd	256
203.18.151.0/24	AS9266	Fiveways International Limited	256
203.18.50.0/24	AS38564	NVIDIA-ASIA	256
203.18.30.0/24	AS133159	Mammoth Media Pty Ltd	256
203.18.137.0/24	AS45765	4th Floor, Weikfield IT Park	256
203.18.94.0/24	AS9268	Over The Wire Pty Ltd	256
203.18.240.0/24	AS4826	Netway Technologies Pty Ltd	256
203.18.56.0/24	AS4826	BOMBORA TECHNOLOGIES PTY LTD	256
203.18.51.0/24	AS56166	ITI (Gas Rahat Building) Campus	256
203.18.197.0/24	AS56229	PT LNS TEKNOLOGI SOLUSINDO	256
203.18.98.0/24	AS56971	Mistic Internet Security Pty Ltd	256
203.18.39.0/24	AS131769	CV Prestasi Sukses Gemilang	256
203.18.0.0/24	AS7477	SkyMesh Pty Ltd	256
203.18.79.0/24	AS7545	Hi-Speed Networking	256
203.18.1.0/24	AS7575	National Gallery of Victoria	256
203.18.63.0/24	AS7575	Powerhouse Museum	256
203.18.23.0/24	AS7600	Escapenet Pty Ltd	256
203.18.104.0/24	AS136938	PT Yoan Corp Indonesian	256
203.18.174.0/24	AS142590	Ambulance Victoria	256
203.18.245.0/24	AS14618	LINKED STORE BRASIL CRIACAO E DESENVOL DE SOFTWARE	256
203.18.78.0/24	AS7647	OnTheNet Pty Ltd	256
203.18.59.0/24	AS134673	GISBORNE.NET.N.Z. LIMITED	256
203.18.176.0/24	AS852	Colliers International Canada	256

Hosted domains

There are 206 domain names hosted across 7 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.18.35.206	goodmeasures.com.au	198
203.18.35.29	befreetogp.com.au	4
203.18.35.142	sonicdx-et.com.au	1
203.18.35.249	sonicdx.com.au	1
203.18.35.248	skgconnect.com.au	1
203.18.35.146	higpacs.com.au	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
203.18.35.39	AS1221 Telstra Limited	`1.54ms` 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
77.172.100.56	AS1136 KPN B.V.	`3.64ms` from Amsterdam, NL
68.22.82.8	AS7018 AT&T Enterprises, LLC	`2.68ms` from Atlanta, US
87.153.190.40	AS3320 Deutsche Telekom AG	`2.42ms` from Berlin, DE
181.54.189.56	AS10620 Telmex Colombia S.A.	`5.89ms` from Bogota, CO
3.168.6.248	AS16509 Amazon.com, Inc.	`0.10ms` from Dallas, US
106.195.113.136	AS45609 Bharti Airtel Ltd. AS for GPRS Service	`5.80ms` from Delhi, IN
47.45.137.136	AS33588 Charter Communications LLC	`7.10ms` from Denver, US
68.49.84.24	AS7922 Comcast Cable Communications, LLC	`7.87ms` from Flint, US
124.51.220.40	AS17858 LG POWERCOMM	`1.41ms` from Incheon, KR
167.148.113.152	AS2914 NTT America, Inc.	`0.32ms` from Los Angeles, US
97.130.249.104	AS6167 Verizon Business	`13.07ms` from Los Angeles, US
24.185.219.72	AS6128 Cablevision Systems Corp.	`9.09ms` from New York City, US
95.220.234.136	AS12714 PJSC MegaFon	`5.17ms` from Saint Petersburg, RU
148.71.165.216	AS12353 Vodafone Portugal	`7.59ms` from Lisbon, PT
45.55.55.200	AS14061 DigitalOcean, LLC	`0.35ms` from New York City, US
109.15.15.56	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`13.87ms` from Paris, FR
91.122.200.232	AS12389 PJSC Rostelecom	`17.56ms` from Saint Petersburg, RU
68.220.58.24	AS8075 Microsoft Corporation	`0.56ms` from San Jose, US
61.73.153.8	AS4766 Korea Telecom	`1.09ms` from Seoul, KR
154.54.208.24	AS174 Cogent Communications, LLC	`0.55ms` from Tokyo, JP
94.251.139.56	AS21021 Multimedia Polska Sp. z o.o.	`14.87ms` from Warsaw, PL
185.45.192.248	AS60117 Host Sailor Ltd	`0.70ms` from Amsterdam, NL
20.163.182.200	AS8075 Microsoft Corporation	`0.50ms` from Ashburn, US
3.103.84.120	AS16509 Amazon.com, Inc.	`0.43ms` from Auckland, NZ
184.57.156.248	AS10796 Charter Communications Inc	`15.13ms` from Columbus, US

Traceroute

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

traceroute -a -n -q1 203.18.35.251

traceroute to 203.18.35.251 (203.18.35.251): 64 hops max, 52 byte packets

1 [AS15169] 142.251.244.117 265.92 ms

2 [AS15169] 192.178.98.30 265.006 ms

3 *

4 [AS1221] 203.50.11.176 259.973 ms

5 *

6 [AS1221] 203.50.11.104 253.993 ms

7 *

8 [AS1221] 203.18.35.251 254.805 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On March 13th 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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