203.21.51.0/24
AS1221 · Telstra Limited
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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
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 |
2.39ms from Chicago,
US
|
|
| 169.55.196.24 |
1.92ms from Dallas,
US
|
|
| 216.81.144.248 |
1.96ms from Des Moines,
US
|
|
| 38.13.187.136 |
4.44ms from Durham,
US
|
|
| 5.63.36.120 |
1.41ms from Frankfurt am Main,
DE
|
|
| 68.203.194.24 |
8.68ms from Houston,
US
|
|
| 46.45.207.136 |
17.86ms from Moscow,
RU
|
|
| 83.197.213.136 |
11.03ms from Paris,
FR
|
|
| 86.245.106.152 |
4.65ms from Paris,
FR
|
|
| 133.32.28.136 |
2.24ms from Tokyo,
JP
|
|
| 61.53.80.120 |
3.75ms from Zhengzhou,
CN
|
|
| 67.163.110.184 |
11.00ms from Ashburn,
US
|
|
| 108.139.20.232 |
0.08ms from Atlanta,
US
|
|
| 86.123.205.200 |
0.81ms from Bucharest,
RO
|
|
| 190.96.123.200 |
9.34ms from Cordoba,
AR
|
|
| 47.187.38.72 |
0.96ms from Dallas,
US
|
|
| 98.29.25.72 |
17.32ms from Flint,
US
|
|
| 77.52.2.168 |
0.62ms from Kyiv,
UA
|
|
| 67.207.174.216 |
0.29ms from Los Angeles,
US
|
|
| 69.55.46.24 |
17.45ms from Minneapolis,
US
|
|
| 177.106.117.184 |
7.69ms from Osasco,
BR
|
|
| 88.92.233.216 |
17.78ms from Oslo,
NO
|
|
| 8.222.224.120 |
0.61ms from Singapore,
SG
|
|
| 199.242.72.56 |
17.25ms from Atlanta,
US
|
|
| 221.210.105.8 |
9.86ms from Changchun,
CN
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
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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