203.21.51.0/24

AS1221  ·  Telstra Limited

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

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 2025-06-10
mnt-by:         MAINT-AU-DATAACTION
last-modified:  2025-11-18T00:27:21Z
source:         APNIC

organisation:   ORG-DAPL1-AP
org-name:       Data Action Pty Ltd
org-type:       LIR
country:        AU
address:        Level 3 , 55 Currie Street,
phone:          +618-8210-1099
fax-no:         +618-8410-0175
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:11Z
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 2025-06-10
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-06-10T23:52:41Z
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
99.64.255.216 AS7018 AT&T Enterprises, LLC 2.39ms from Chicago, US
169.55.196.24 AS36351 IBM Cloud 1.92ms from Dallas, US
216.81.144.248 AS11320 LightEdge Solutions 1.96ms from Des Moines, US
38.13.187.136 AS214483 FiberPower LLC 4.44ms from Durham, US
5.63.36.120 AS62336 PURtel.com GmbH 1.41ms from Frankfurt am Main, DE
68.203.194.24 AS11427 Charter Communications Inc 8.68ms from Houston, US
46.45.207.136 AS12389 PJSC Rostelecom 17.86ms from Moscow, RU
83.197.213.136 AS3215 Orange S.A. 11.03ms from Paris, FR
86.245.106.152 AS3215 Orange S.A. 4.65ms from Paris, FR
133.32.28.136 AS2519 ARTERIA Networks Corporation 2.24ms from Tokyo, JP
61.53.80.120 AS4837 CHINA UNICOM China169 Backbone 3.75ms from Zhengzhou, CN
67.163.110.184 AS7922 Comcast Cable Communications, LLC 11.00ms from Ashburn, US
108.139.20.232 AS16509 Amazon.com, Inc. 0.08ms from Atlanta, US
86.123.205.200 AS8708 DIGI ROMANIA S.A. 0.81ms from Bucharest, RO
190.96.123.200 AS262150 Empresa Provincial de Energia de Cordoba 9.34ms from Cordoba, AR
47.187.38.72 AS5650 Frontier Communications of America, Inc. 0.96ms from Dallas, US
98.29.25.72 AS10796 Charter Communications Inc 17.32ms from Flint, US
77.52.2.168 AS21497 PrJSC VF UKRAINE 0.62ms from Kyiv, UA
67.207.174.216 AS17252 Colocation America Corporation 0.29ms from Los Angeles, US
69.55.46.24 AS18780 Reservation Telephone Coop. 17.45ms from Minneapolis, US
177.106.117.184 AS53006 ALGAR TELECOM S/A 7.69ms from Osasco, BR
88.92.233.216 AS2119 Telenor Norge AS 17.78ms from Oslo, NO
8.222.224.120 AS45102 Alibaba (US) Technology Co., Ltd. 0.61ms from Singapore, SG
199.242.72.56 AS22472 Florida Supreme Court 17.25ms from Atlanta, US
221.210.105.8 AS4837 CHINA UNICOM China169 Backbone 9.86ms from Changchun, CN

Traceroute

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

$
traceroute -a -n -q1 -m15 203.21.51.102
traceroute to 203.21.51.102 (203.21.51.102): 15 hops max, 52 byte packets
2 [AS6453] 180.87.105.34 0.843 ms
4 *
5 *
6 *
7 [AS4637] 202.84.140.105 48.126 ms
8 [AS1221] 203.50.9.12 204.797 ms
9 [AS1221] 203.50.6.236 205.982 ms
10 [AS1221] 203.50.11.153 204.369 ms
11 [AS1221] 203.50.11.148 202.499 ms
12 [AS1221] 110.145.200.86 207.745 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in Singapore, SG
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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs