203.33.128.0/24

AS45158 · TASMANET

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Summary

Country	Australia
Domain	isw.net.au
ASN	AS45158
Registry	APNIC
ID	ISW-AU

WHOIS Details

inetnum:        203.33.128.0 - 203.33.128.255
netname:        ISW-AU
descr:          ISW Technology Pty Ltd
country:        AU
org:            ORG-IA103-AP
admin-c:        ITPL11-AP
tech-c:         ITPL11-AP
abuse-c:        AI985-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-ISW-AU
mnt-irt:        IRT-ISW-AU
last-modified:  2024-08-06T23:27:25Z
source:         APNIC

irt:            IRT-ISW-AU
address:        2 Kelly Street, Battery Point Tasmania 7004
e-mail:         abuse@isw.net.au
abuse-mailbox:  abuse@isw.net.au
admin-c:        ITPL11-AP
tech-c:         ITPL11-AP
auth:           # Filtered
remarks:        abuse@isw.net.au was validated on 2025-08-12
mnt-by:         MAINT-ISW-AU
last-modified:  2025-11-18T00:37:29Z
source:         APNIC

organisation:   ORG-IA103-AP
org-name:       ISW
org-type:       LIR
country:        AU
address:        2 Kelly Street
phone:          +61362160111
e-mail:         networkservices@isw.net.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2024-01-03T13:08:57Z
source:         APNIC

role:           ABUSE ISWAU
country:        ZZ
address:        2 Kelly Street, Battery Point Tasmania 7004
phone:          +000000000
e-mail:         abuse@isw.net.au
admin-c:        ITPL11-AP
tech-c:         ITPL11-AP
nic-hdl:        AI985-AP
remarks:        Generated from irt object IRT-ISW-AU
remarks:        abuse@isw.net.au was validated on 2025-08-12
abuse-mailbox:  abuse@isw.net.au
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-12T23:26:02Z
source:         APNIC

role:           ISW Technology Pty Ltd administrator
address:        2 Kelly Street, Battery Point Tasmania 7004
country:        AU
phone:          +61362160111
e-mail:         abuse@isw.net.au
admin-c:        ITPL11-AP
tech-c:         ITPL11-AP
nic-hdl:        ITPL11-AP
mnt-by:         MAINT-ISW-AU
last-modified:  2024-01-09T00:35:25Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.33.0.0/16

Range	ASN	Company	Num of IPs
203.33.160.0/21	AS7545	iiNet Limited	2,048
203.33.252.0/23	AS4826	Netway Technologies Pty Ltd	512
203.33.158.0/23	AS135089	CHINANET FUJIAN PROVINCE NETWORK	512
203.33.202.0/23	AS134761	CHINANET FUJIAN PROVINCE NETWORK	512
203.33.158.0/23	AS58466	CHINANET FUJIAN PROVINCE NETWORK	512
203.33.108.0/23	AS9266	Fiveways International Limited	512
203.33.206.0/23	AS58519	CHINANET FUJIAN PROVINCE NETWORK	512
203.33.58.0/23	AS9266	Fiveways International Limited	512
203.33.60.0/23	AS9268	Over The Wire Pty Ltd	512
203.33.224.0/23	AS58519	CHINANET FUJIAN PROVINCE NETWORK	512
203.33.214.0/23	AS58519	CHINANET FUJIAN PROVINCE NETWORK	512
203.33.57.0/24	AS151129	SYNCHRONY INTERNATIONAL SERVICES PVT LTD	256
203.33.77.0/24	AS153467	Glen Eira City Council	256
203.33.72.0/24	AS153472	William Branwhite Clarke College	256
203.33.231.0/24	AS17378	Aylie Brutman	256
203.33.150.0/24	AS17766	Nexon Asia Pacific Pty Ltd	256
203.33.171.0/24	AS18111	Bytecard PTY LTD	256
203.33.70.0/24	AS210371	Mobileye Vision Technologies Ltd	256
203.33.10.0/24	AS23764	Chinatelecom Next Carrying Network backbone	256
203.33.8.0/24	AS23764	Chinatelecom Next Carrying Network backbone	256
203.33.9.0/24	AS23764	Chinatelecom Next Carrying Network backbone	256
203.33.133.0/24	AS24510	HOLMESGLEN INSTITUTE OF TAFE	256
203.33.65.0/24	AS2764	PG Lion ReSources Aust Pty Ltd	256
203.33.254.0/24	AS38195	SUPERLOOP (AUSTRALIA) PTY LTD	256
203.33.121.0/24	AS38220	Amaze Intelligence Pty Ltd	256
203.33.196.0/24	AS38291	BPS Corporation	256
203.33.236.0/24	AS38611	Bendigo Community Telco Limited	256
203.33.45.0/24	AS399735	LakeLand Internet LLC	256
203.33.145.0/24	AS4134	CHINANET FUJIAN PROVINCE NETWORK	256
203.33.156.0/24	AS4134	CHINANET FUJIAN PROVINCE NETWORK	256
203.33.174.0/24	AS4134	CHINANET FUJIAN PROVINCE NETWORK	256
203.33.32.0/24	AS4134	CHINANET FUJIAN PROVINCE NETWORK	256
203.33.63.0/24	AS4134	CHINANET FUJIAN PROVINCE NETWORK	256
203.33.64.0/24	AS4134	CHINANET FUJIAN PROVINCE NETWORK	256
203.33.240.0/24	AS45581	Infonet Thailand	256
203.33.102.0/24	AS45852	Bendigo Bank	256
203.33.241.0/24	AS4739	iiNet Limited	256
203.33.255.0/24	AS4739	iiNet Limited	256
203.33.185.0/24	AS4809	CHINANET FUJIAN PROVINCE NETWORK	256
203.33.200.0/24	AS4809	CHINANET FUJIAN PROVINCE NETWORK	256
203.33.21.0/24	AS4809	CHINANET FUJIAN PROVINCE NETWORK	256
203.33.226.0/24	AS4809	CHINANET FUJIAN PROVINCE NETWORK	256
203.33.26.0/24	AS4809	CHINANET FUJIAN PROVINCE NETWORK	256
203.33.4.0/24	AS4809	CHINANET FUJIAN PROVINCE NETWORK	256
203.33.7.0/24	AS4809	CHINANET FUJIAN PROVINCE NETWORK	256
203.33.223.0/24	AS4826	Christopher Kevin Hurley	256
203.33.38.0/24	AS48448	Embark Studios AB	256
203.33.239.0/24	AS58061	MISTIC-AU	256
203.33.67.0/24	AS58777	CHINANET FUJIAN PROVINCE NETWORK	256

Hosted domains

There are 36 domain names hosted across 10 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.33.128.234	centaurnet.com.au	16
203.33.128.78	southwoodwines.com	8
203.33.128.79	southwoodwines.com.au	3
203.33.128.230	onlinehrsolutions.com.au	2
203.33.128.235	jackfundjill.com.au	2
203.33.128.231	mytupperware.biz	1
203.33.128.151	iteam.com.au	1
203.33.128.70	bcard.com.au	1
203.33.128.149	businesscard.com.au	1
203.33.128.217	richdawn.com.au	1

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

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

IP Address	ASN	Details
203.33.128.1	AS45158 TASMANET	`21.22ms` 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
176.108.87.152	AS57826 Svyaz-INKOM-Servis i telekommunikatsii Ltd.	`7.09ms` from Astana, KZ
79.131.58.200	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`12.45ms` from Athens, GR
44.246.3.200	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
181.140.35.232	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`15.27ms` from Bogota, CO
109.132.246.56	AS5432 Proximus NV	`1.86ms` from Brussels, BE
41.236.187.104	AS8452 TE-AS	`3.57ms` from Cairo, EG
128.146.189.40	AS159 Ohio State University	`1.77ms` from Columbus, US
154.70.84.40	AS30982 CAFE Informatique et telecommunications	`0.33ms` from Lomé, TG
52.56.137.8	AS16509 Amazon.com, Inc.	`0.21ms` from London, GB
64.56.72.56	AS22439 Perfect International, Inc	`0.78ms` from Los Angeles, US
81.86.155.56	AS13285 TalkTalk Communications Limited	`2.73ms` from Manchester, GB
58.69.194.152	AS9299 Philippine Long Distance Telephone Company	`0.40ms` from Manila, PH
115.70.206.232	AS10143 Exetel Pty Ltd	`0.22ms` from Melbourne, AU
86.57.211.184	AS6697 Republican Unitary Telecommunication Enterprise Beltelecom	`5.95ms` from Minsk, BY
118.105.107.168	AS18126 Chubu Telecommunications Company, Inc.	`4.47ms` from Osaka, JP
20.60.15.8	AS8075 Microsoft Corporation	`6.91ms` from Oslo, NO
176.151.212.104	AS5410 Bouygues Telecom SA	`9.72ms` from Paris, FR
112.157.246.8	AS17858 LG POWERCOMM	`2.44ms` from Seoul, KR
13.48.120.72	AS16509 Amazon.com, Inc.	`0.12ms` from Stockholm, SE
92.34.227.120	AS8434 Telenor Sverige AB	`1.06ms` from Stockholm, SE
79.119.44.216	AS8708 DIGI ROMANIA S.A.	`3.76ms` from Timisoara, RO
4.205.221.8	AS8075 Microsoft Corporation	`0.17ms` from Toronto, CA
34.85.212.152	AS396982 Google LLC	`0.12ms` from Ashburn, US
190.198.207.168	AS8048 CANTV Servicios, Venezuela	`12.80ms` from Caracas, VE
97.130.41.200	AS6167 Verizon Business	`8.86ms` from Chicago, US

Traceroute

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

traceroute -a -n -q1 203.33.128.205

traceroute to 203.33.128.205 (203.33.128.205): 64 hops max, 52 byte packets

1 [AS15169] 74.125.251.94 1.475 ms

2 [AS15169] 192.178.98.28 1.461 ms

3 [AS64098] 59.153.9.26 1.109 ms

4 [AS64098] 103.197.233.119 0.785 ms

5 *

6 *

7 [AS45158] 120.29.242.195 22.725 ms

8 [AS45158] 203.33.128.205 22.979 ms

Measurement taken from

IPinfo ProbeNet in Sydney, AU

On February 7th 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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