203.21.57.0/24

AS1221  ·  Telstra Limited

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Summary

Country Australia
Domain da.com.au
ASN AS1221
Registry APNIC
ID DATAACTION-AU

WHOIS Details

inetnum:        203.21.48.0 - 203.21.63.255
netname:        DATAACTION-AU
descr:          Data Action Pty Ltd
descr:          L3 55 Currie Street
descr:          Adelaide
descr:          SA 5000
country:        AU
org:            ORG-DAPL1-AP
admin-c:        DHD1-AP
tech-c:         DHD1-AP
abuse-c:        AD788-AP
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-lower:      MAINT-AU-DATAACTION
mnt-irt:        IRT-DATAACTION-NON-AU
mnt-routes:     MAINT-AU-DATAACTION
last-modified:  2020-10-12T03:23:51Z
source:         APNIC

irt:            IRT-DATAACTION-NON-AU
address:        Level 3
address:        55 Currie Street
address:        Adelaide
address:        SA 5000
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        DHD1-AP
tech-c:         DHD1-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-12-16
mnt-by:         MAINT-AU-DATAACTION
last-modified:  2025-12-16T23:35:05Z
source:         APNIC

organisation:   ORG-DAPL1-AP
org-name:       Data Action Pty Ltd
org-type:       LIR
country:        AU
address:        Level 3 , 55 Currie Street,
phone:          +618-8201-1000
fax-no:         +618-8410-0175
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2025-12-17T13:02:13Z
source:         APNIC

role:           ABUSE DATAACTIONNONAU
country:        ZZ
address:        Level 3
address:        55 Currie Street
address:        Adelaide
address:        SA 5000
phone:          +000000000
e-mail:         [email protected]
admin-c:        DHD1-AP
tech-c:         DHD1-AP
nic-hdl:        AD788-AP
remarks:        Generated from irt object IRT-DATAACTION-NON-AU
remarks:        [email protected] was validated on 2025-12-16
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-16T23:35:48Z
source:         APNIC

role:           DATAACTION HELP DESK
address:        Level 3
address:        55 Currie Street
address:        Adelaide
address:        SA 5000
country:        AU
phone:          +61-8-8201 1400
admin-c:        DHD1-AP
tech-c:         DHD1-AP
nic-hdl:        DHD1-AP
mnt-by:         MAINT-AU-DATAACTION
e-mail:         [email protected]
remarks:        any query please contact [email protected]
notify:         [email protected]
last-modified:  2024-09-16T05:00:17Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.21.0.0/16

Range ASN Company Num of IPs
203.21.112.0/21 AS133612 VODAFONE AUSTRALIA PTY LIMITED 2,048
203.21.24.0/21 AS703 Verizon Australia PTY Limited 2,048
203.21.140.0/22 AS135409 Kacific Broadband Satellites Pte Ltd 1,024
203.21.108.0/22 AS133612 VODAFONE AUSTRALIA PTY LIMITED 1,024
203.21.150.0/23 AS137896 Hunter Water Corporation 512
203.21.128.0/23 AS2764 St. Vincent's Health & Aged Care Ltd. 512
203.21.130.0/23 AS10148 The University of Melbourne 512
203.21.42.0/23 AS56118 47/111 Tiwanon Road 512
203.21.76.0/23 AS38549 Viewbank Rise Networks 512
203.21.66.0/24 AS209854 Cyberzone S.A. 256
203.21.4.0/24 AS216053 Data Cloud Technology d.o.o Kragujevac 256
203.21.7.0/24 AS24448 Synamedia Technologies (India) Private Limited 256
203.21.79.0/24 AS2764 First Linear 256
203.21.72.0/24 AS395793 Mistic Internet Security Pty Ltd 256
203.21.125.0/24 AS45671 MailGuard Pty. Ltd. 256
203.21.20.0/24 AS4739 iiNet Limited 256
203.21.134.0/24 AS58716 Penrith City Council 256
203.21.5.0/24 AS7545 Micronica 256
203.21.78.0/24 AS7545 iiNet Limited 256
203.21.121.0/24 AS7575 Universities Australia 256
203.21.37.0/24 AS7575 Australian Academic and Research Network 256
203.21.83.0/24 AS7647 OnTheNet Pty Ltd 256
203.21.95.0/24 AS9009 Formosa Sydney Pty Limited 256
203.21.22.0/24 AS9266 Fiveways International Limited 256
203.21.207.0/24 AS10143 Infinet Group Pty Ltd 256
203.21.12.0/24 AS9650 CITEC 256
203.21.9.0/24 AS10143 OCTEC Incorporated 256
203.21.40.0/24 AS133015 City of Stirling 256
203.21.140.0/24 AS135409 Western Samoa Pool 256
203.21.65.0/24 AS154329 Phoenix Business Solutions Australia Pty Ltd 256
203.21.120.0/24 AS17882 Univision LLC 256
203.21.21.0/24 AS17889 Intraceptives Pty Ltd 256
203.21.104.0/24 AS18986 Calligo (Canada) Inc. 256
203.21.47.0/24 AS18986 Calligo (Canada) Inc. 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

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
132.220.98.200 AS8075 Microsoft Corporation 0.27ms from Amsterdam, NL
20.124.19.72 AS8075 Microsoft Corporation 0.44ms from Ashburn, US
46.139.172.248 AS5483 Magyar Telekom Plc. 4.34ms from Budapest, HU
34.162.13.216 AS396982 Google LLC 0.15ms from Columbus, US
70.115.54.136 AS11427 Charter Communications Inc 18.48ms from Dallas, US
59.178.17.216 AS9829 National Internet Backbone 4.61ms from Delhi, IN
45.169.216.120 AS268125 Jequie Telecom Servicos Ltda. 16.11ms from Fortaleza, BR
12.36.194.168 AS7018 AT&T Enterprises, LLC 1.77ms from Houston, US
104.27.22.152 AS13335 Cloudflare, Inc. 0.11ms from Lisbon, PT
83.47.103.232 AS3352 TELEFONICA DE ESPANA S.A.U. 9.15ms from Madrid, ES
188.10.249.8 AS3269 Telecom Italia S.p.A. 4.28ms from Milan, IT
138.28.136.88 AS40237 United Telephone Company 4.13ms from Nashville, US
111.235.210.24 AS131584 Taiwan Intelligent Fiber Optic Network Co.,Ltd. 0.62ms from Taipei, TW
101.243.162.184 AS17429 BEIJING GEHUA CATV NETWORK CO.LTD 9.89ms from Beijing, CN
218.55.149.8 AS9318 SK Broadband Co Ltd 3.00ms from Incheon, KR
193.150.49.88 AS44894 Ukrchermetavtomatika LLC 8.72ms from Kyiv, UA
65.86.197.152 AS7029 Windstream Communications LLC 0.47ms from New York City, US
51.175.191.8 AS29695 Lyse Tele AS 1.91ms from Oslo, NO
185.61.168.56 AS41327 Fiber Telecom S.p.A. 0.24ms from Palermo, IT
189.141.5.40 AS8151 UNINET 1.29ms from Santiago de Queretaro, MX
47.129.126.168 AS16509 Amazon.com, Inc. 0.40ms from Singapore, SG
52.192.224.232 AS16509 Amazon.com, Inc. 0.18ms from Tokyo, JP
173.203.209.40 AS33070 Rackspace Hosting 1.02ms from Dallas, US
167.8.142.8 AS395693 TEGNA Inc. 2.01ms from Dallas, US
90.217.136.152 AS5607 Sky UK Limited 5.36ms from Erith, GB

Traceroute

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

$
traceroute -a -n -q1 -f2 -m17 203.21.57.41
traceroute to 203.21.57.41 (203.21.57.41): 17 hops max, 52 byte packets
3 *
4 *
5 [AS6453] 180.87.175.32 18.697 ms
6 *
7 [AS4637] 210.57.53.84 51.42 ms
8 *
10 [AS1221] 203.50.9.12 97.879 ms
11 [AS1221] 203.50.6.236 124.689 ms
12 [AS1221] 203.50.11.153 123.153 ms
13 [AS1221] 203.50.11.148 122.564 ms
14 [AS1221] 110.145.200.86 123.606 ms
15 *
16 *
17 *
Measurement taken from IPinfo ProbeNet in Pune, IN
On

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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