65,536 routable23 ASes
/16 subnet
203.4.0.0/16
Where this subnet is, who announces it, and what our databases hold in it. Below, every /24 inside it; open one for its addresses.
65,536
routable addresses
65,536
geolocated
5
countries
23
announcing ASes
68
announced prefixes
31
anonymous addresses
Where it is
Addresses IP Geolocation places in each country, as a share of those it places.
- Australia59,392 · 90.63%
- China5,120 · 7.81%
- United States512 · 0.78%
- Bangladesh256 · 0.39%
- Thailand256 · 0.39%
Who announces it
Each /24 counted for the AS announcing most of it, as a share of the routable addresses.
- AS9648Australia On-Line Pty Ltd2,048 · 3.13%
- AS18390Spintel Pty Ltd2,048 · 3.13%
- AS24007Seven Network ASN2,048 · 3.13%
- AS136392ST. VINCENT'S HOSPITAL (MELBOURNE) LIMITED2,048 · 3.13%
- AS1221Telstra Limited1,280 · 1.95%
- AS4822National Library of Australia1,024 · 1.56%
- AS23918NTT Australia Solutions Pty Ltd1,024 · 1.56%
- AS149872Peter MacCallum Cancer Institute1,024 · 1.56%
- AS396982Google LLC1,024 · 1.56%
- AS2764AAPT Limited768 · 1.17%
What the databases see
Addresses each address-keyed database holds in this block, as a share of its routable addresses. Counts overlap: one address can be in several.
- VPN IP290.04%
- 0.00%
- None here
- None here
- None here
- None here
- Hosting IP2,5603.91%
- None here
- Carrier IP1,2801.95%
- None here
- SSH IP450.07%
- SMTP IP1230.19%
- 0.22%
Announced prefixes
Every prefix inside this block that BGP Route saw announced, with its origin and RPKI status.
| PREFIX | ORIGIN | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|---|
| 203.4.130.0/24 | AS1221Telstra Limited | Australia | valid | 16 | 2026-10-02 |
| 203.4.131.0/24 | AS1221Telstra Limited | Australia | valid | 16 | 2026-10-02 |
| 203.4.136.0/24also AS153177 | AS18390Spintel Pty Ltd | Australia | valid | 12 | 2026-10-02 |
| 203.4.136.0/24also AS18390 | AS153177Steven Haigh | Australia | valid | 4 | 2026-10-08 |
| 203.4.137.0/24also AS153177 | AS18390Spintel Pty Ltd | Australia | valid | 12 | 2026-10-02 |
| 203.4.137.0/24also AS18390 | AS153177Steven Haigh | Australia | valid | 4 | 2026-10-08 |
| 203.4.138.0/24also AS153177 | AS18390Spintel Pty Ltd | Australia | valid | 12 | 2026-10-02 |
| 203.4.138.0/24also AS18390 | AS153177Steven Haigh | Australia | valid | 4 | 2026-10-08 |
| 203.4.139.0/24also AS153177 | AS18390Spintel Pty Ltd | Australia | valid | 12 | 2026-10-02 |
| 203.4.139.0/24also AS18390 | AS153177Steven Haigh | Australia | valid | 4 | 2026-10-08 |
| 203.4.140.0/24also AS153177 | AS18390Spintel Pty Ltd | Australia | valid | 12 | 2026-10-02 |
| 203.4.140.0/24also AS18390 | AS153177Steven Haigh | Australia | valid | 4 | 2026-10-08 |
| 203.4.141.0/24also AS153177 | AS18390Spintel Pty Ltd | Australia | valid | 12 | 2026-10-02 |
| 203.4.141.0/24also AS18390 | AS153177Steven Haigh | Australia | valid | 4 | 2026-10-08 |
| 203.4.142.0/24also AS153177 | AS18390Spintel Pty Ltd | Australia | valid | 12 | 2026-10-02 |
| 203.4.142.0/24also AS18390 | AS153177Steven Haigh | Australia | valid | 4 | 2026-10-08 |
| 203.4.143.0/24 | AS18390Spintel Pty Ltd | Australia | valid | 16 | 2026-10-02 |
| 203.4.145.0/24 | AS7575Australian Academic and Research Network (AARNet) | Australia | not found | 18 | 2026-10-02 |
| 203.4.147.0/24 | AS7575Australian Academic and Research Network (AARNet) | Australia | not found | 18 | 2026-10-02 |
| 203.4.149.0/24 | AS58929Datbury Pty Ltd | Australia | valid | 16 | 2026-10-02 |
| 203.4.160.0/24 | AS24060KTB COMPUTER SERVICES COMPANY LIMITED | Thailand | not found | 16 | 2026-10-02 |
| 203.4.162.0/24 | AS9301Cynergic | Australia | valid | 16 | 2026-10-02 |
| 203.4.164.0/22 | AS149872Peter MacCallum Cancer Institute | Australia | valid | 18 | 2026-10-02 |
| 203.4.164.0/24 | AS149872Peter MacCallum Cancer Institute | Australia | valid | 18 | 2026-10-02 |
| 203.4.165.0/24 | AS149872Peter MacCallum Cancer Institute | Australia | valid | 18 | 2026-10-02 |
| 203.4.166.0/24 | AS149872Peter MacCallum Cancer Institute | Australia | valid | 18 | 2026-10-02 |
| 203.4.167.0/24 | AS149872Peter MacCallum Cancer Institute | Australia | valid | 18 | 2026-10-02 |
| 203.4.168.0/24 | AS9449QLD VoIP Services Australia | Australia | valid | 16 | 2026-10-02 |
| 203.4.169.0/24 | AS37990NRG Gladstone Operating Services, Electricity Generation, Gladstone, QLD, Australia | Australia | valid | 16 | 2026-10-02 |
| 203.4.170.0/23 | AS9449QLD VoIP Services Australia | Australia | valid | 16 | 2026-10-02 |
| 203.4.170.0/24 | AS9449QLD VoIP Services Australia | Australia | valid | 16 | 2026-10-02 |
| 203.4.171.0/24 | AS9449QLD VoIP Services Australia | Australia | valid | 16 | 2026-10-02 |
| 203.4.172.0/23 | AS4739Internode Pty Ltd | Australia | not found | 16 | 2026-10-02 |
| 203.4.182.0/23 | AS138390Trinity Grammar School | Australia | not found | 18 | 2026-10-02 |
| 203.4.185.0/24 | AS17766Nexon Asia Pacific Pty Ltd | Australia | not found | 4 | 2026-10-02 |
| 203.4.187.0/24 | AS136156MD Rehanur Rahman t/a M/S FNF Online | Bangladesh | valid | 17 | 2026-10-02 |
| 203.4.188.0/23 | AS396982Google LLC | Australia | valid | 16 | 2026-10-02 |
| 203.4.190.0/23 | AS396982Google LLC | Australia | valid | 16 | 2026-10-02 |
| 203.4.192.0/24 | AS1221Telstra Limited | Australia | valid | 16 | 2026-10-02 |
| 203.4.193.0/24 | AS1221Telstra Limited | Australia | valid | 16 | 2026-10-02 |
| 203.4.194.0/24 | AS15830Equinix (EMEA) Acquisition Enterprises B.V. | Australia | valid | 16 | 2026-10-02 |
| 203.4.196.0/24 | AS1221Telstra Limited | Australia | valid | 16 | 2026-10-02 |
| 203.4.197.0/24 | AS2764AAPT Limited | Australia | valid | 16 | 2026-10-02 |
| 203.4.198.0/24 | AS2764AAPT Limited | Australia | valid | 16 | 2026-10-02 |
| 203.4.200.0/22 | AS4822National Library of Australia | Australia | not found | 18 | 2026-10-02 |
| 203.4.212.0/22 | AS23918NTT Australia Solutions Pty Ltd | Australia | valid | 16 | 2026-10-02 |
| 203.4.216.0/21 | AS136392ST. VINCENT'S HOSPITAL (MELBOURNE) LIMITED | Australia | not found | 16 | 2026-10-02 |
| 203.4.224.0/24 | AS138201Melbourne Girls Grammar School | Australia | not found | 18 | 2026-10-02 |
| 203.4.226.0/24 | AS151499Australian Public Access Network Association Inc | Australia | valid | 16 | 2026-10-02 |
| 203.4.229.0/24 | AS2764AAPT Limited | Australia | not found | 16 | 2026-10-02 |
| 203.4.232.0/21 | AS24007Seven Network ASN | Australia | valid | 16 | 2026-10-02 |
| 203.4.232.0/24 | AS24007Seven Network ASN | Australia | valid | 16 | 2026-10-02 |
| 203.4.233.0/24 | AS24007Seven Network ASN | Australia | valid | 16 | 2026-10-02 |
| 203.4.234.0/24 | AS24007Seven Network ASN | Australia | valid | 16 | 2026-10-02 |
| 203.4.235.0/24 | AS24007Seven Network ASN | Australia | valid | 16 | 2026-10-02 |
| 203.4.236.0/24 | AS24007Seven Network ASN | Australia | valid | 16 | 2026-10-02 |
| 203.4.237.0/24 | AS24007Seven Network ASN | Australia | valid | 16 | 2026-10-02 |
| 203.4.238.0/24 | AS24007Seven Network ASN | Australia | valid | 16 | 2026-10-02 |
| 203.4.239.0/24 | AS24007Seven Network ASN | Australia | valid | 16 | 2026-10-02 |
| 203.4.248.0/21 | AS9648Australia On-Line Pty Ltd | Australia | not found | 16 | 2026-10-02 |
| 203.4.248.0/24 | AS9648Australia On-Line Pty Ltd | Australia | not found | 4 | 2026-10-02 |
| 203.4.249.0/24 | AS9648Australia On-Line Pty Ltd | Australia | not found | 4 | 2026-10-02 |
| 203.4.250.0/24 | AS9648Australia On-Line Pty Ltd | Australia | not found | 4 | 2026-10-02 |
| 203.4.251.0/24 | AS9648Australia On-Line Pty Ltd | Australia | not found | 4 | 2026-10-02 |
| 203.4.252.0/24 | AS9648Australia On-Line Pty Ltd | Australia | not found | 4 | 2026-10-02 |
| 203.4.253.0/24 | AS9648Australia On-Line Pty Ltd | Australia | not found | 4 | 2026-10-02 |
| 203.4.254.0/24 | AS9648Australia On-Line Pty Ltd | Australia | not found | 4 | 2026-10-02 |
| 203.4.255.0/24 | AS9648Australia On-Line Pty Ltd | Australia | not found | 4 | 2026-10-02 |
Every /24 inside it
00 · Evaluate
Test the real build first.
An evaluation license puts a full current build in your hands, with no sampling, so you can measure it against your own traffic before anyone talks about terms.
01 · License
Then license what you use.
Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell, priced by scope rather than by seat.
Annual terms, a named contact, and monthly, quarterly or yearly payment.