65,536 routable58 ASes
/16 subnet
203.28.0.0/16
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
18
countries
58
announcing ASes
86
announced prefixes
729
anonymous addresses
Where it is
Addresses IP Geolocation places in each country, as a share of those it places.
- Australia49,406 · 75.39%
- China7,680 · 11.72%
- Bangladesh1,536 · 2.34%
- Indonesia1,280 · 1.95%
- United States1,280 · 1.95%
- Philippines1,024 · 1.56%
- Cyprus512 · 0.78%
- Thailand512 · 0.78%
- Canada256 · 0.39%
- Switzerland256 · 0.39%
Who announces it
Each /24 counted for the AS announcing most of it, as a share of the routable addresses.
- AS10148The University of Melbourne, Melbourne, Victoria1,792 · 2.73%
- AS2764AAPT Limited1,024 · 1.56%
- AS45701PT. Internet Madju Abad Milenindo1,024 · 1.56%
- AS137074Responsible Internet Sustainability Effort1,024 · 1.56%
- AS4826Vocus Connect International Backbone768 · 1.17%
- AS16509Amazon.com, Inc.768 · 1.17%
- AS38719Dreamscape Networks Limited768 · 1.17%
- AS7474SingTel Optus Pty Ltd512 · 0.78%
- AS8075Microsoft Corporation512 · 0.78%
- AS9650QLD Government Business (IT)512 · 0.78%
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 IP4350.66%
- 0.46%
- None here
- None here
- 0.00%
- None here
- None here
- Hosting IP5,8868.98%
- CDN IP7601.16%
- Carrier IP1,0241.56%
- None here
- Anycast IP5120.78%
- SSH IP2640.40%
- SMTP IP640.10%
- 0.11%
- Web IP1,1831.81%
- 0.08%
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 |
|---|---|---|---|---|---|
| 203.28.8.0/24 | AS209242Cloudflare London, LLC | Cyprus | Not found | 18 | 2026-10-02 |
| 203.28.9.0/24 | AS209242Cloudflare London, LLC | Cyprus | Not found | 18 | 2026-10-02 |
| 203.28.14.0/24 | AS23886Port Waratah Coal Services Ltd, | Australia | Not found | 17 | 2026-10-02 |
| 203.28.15.0/24also AS216456 | AS207551Wijnand Schouten | The Netherlands | Valid | 10 | 2026-10-02 |
| 203.28.15.0/24also AS207551 | AS216456Dcent Investments BV | The Netherlands | Valid | 7 | 2026-10-02 |
| 203.28.17.0/24 | AS4764Aussie Fibre Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.28.18.0/24 | AS23028Team Cymru Inc. | Australia | Not found | 18 | 2026-10-02 |
| 203.28.19.0/24 | AS12975Palestine Telecommunications Company (PALTEL) | Palestinian Territory | Valid | 17 | 2026-10-02 |
| 203.28.22.0/24 | AS58713FIBERVISION | Australia | Valid | 17 | 2026-10-02 |
| 203.28.28.0/24 | AS131998Ticketmaster Australasia | Australia | Not found | 17 | 2026-10-02 |
| 203.28.36.0/24 | AS136518WA Government project | Australia | Not found | 17 | 2026-10-02 |
| 203.28.37.0/24 | AS4826Vocus Connect International Backbone | Australia | Not found | 17 | 2026-10-02 |
| 203.28.46.0/23 | AS140211City of Marion | Australia | Valid | 17 | 2026-10-02 |
| 203.28.48.0/23 | AS38719Dreamscape Networks Limited | Australia | Valid | 17 | 2026-10-02 |
| 203.28.50.0/24 | AS38719Dreamscape Networks Limited | Australia | Valid | 17 | 2026-10-02 |
| 203.28.51.0/24 | AS45671Wholesale Services Provider | Australia | Valid | 17 | 2026-10-02 |
| 203.28.52.0/24 | AS58696100 Whale Beach Road | Australia | Not found | 17 | 2026-10-02 |
| 203.28.53.0/24 | AS154203PT DELTA SKY TECH | Indonesia | Valid | 17 | 2026-10-02 |
| 203.28.57.0/24 | AS154204Shine Effort Inc Limited | Hong Kong | Valid | 18 | 2026-10-02 |
| 203.28.63.0/24 | AS141437Officeworks Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.28.64.0/22 | AS137074Responsible Internet Sustainability Effort | Philippines | Valid | 17 | 2026-10-02 |
| 203.28.64.0/24 | AS137074Responsible Internet Sustainability Effort | Philippines | Valid | 17 | 2026-10-02 |
| 203.28.65.0/24 | AS137074Responsible Internet Sustainability Effort | Philippines | Valid | 17 | 2026-10-02 |
| 203.28.66.0/24 | AS137074Responsible Internet Sustainability Effort | Philippines | Valid | 17 | 2026-10-02 |
| 203.28.67.0/24 | AS137074Responsible Internet Sustainability Effort | Philippines | Valid | 17 | 2026-10-02 |
| 203.28.68.0/24 | AS14127Iland Internet Solutions Corporation | Australia | Not found | 17 | 2026-10-02 |
| 203.28.69.0/24 | AS14127Iland Internet Solutions Corporation | Australia | Not found | 17 | 2026-10-02 |
| 203.28.70.0/24 | AS16509Amazon.com, Inc. | United States | Valid | 17 | 2026-10-02 |
| 203.28.71.0/24 | AS16509Amazon.com, Inc. | United States | Valid | 17 | 2026-10-02 |
| 203.28.75.0/24 | AS137409GSL Networks Pty LTD | Australia | Valid | 1 | 2026-10-02 |
| 203.28.79.0/24 | AS58611Charles Darwin University | Australia | Valid | 19 | 2026-10-02 |
| 203.28.81.0/24 | AS38295Content Service Provider Multihomed. | Australia | Not found | 17 | 2026-10-02 |
| 203.28.82.0/24 | AS38295Content Service Provider Multihomed. | Australia | Not found | 17 | 2026-10-02 |
| 203.28.85.0/24 | AS17477Macquarie Technology Operations Pty Limited | Australia | Not found | 17 | 2026-10-02 |
| 203.28.90.0/24 | AS38880Micron21 Datacentre Pty Ltd | Australia | Valid | 17 | 2026-10-02 |
| 203.28.104.0/24 | AS152661ALZAF LIMITED | Bangladesh | Valid | 18 | 2026-10-02 |
| 203.28.105.0/24 | AS152661ALZAF LIMITED | Bangladesh | Valid | 18 | 2026-10-02 |
| 203.28.106.0/24 | AS4637Telstra Global | Australia | Valid | 17 | 2026-10-02 |
| 203.28.113.0/24 | AS18390Spintel Pty Ltd | Australia | Valid | 17 | 2026-10-02 |
| 203.28.115.0/24 | AS133116Kalgoorlie Consolidated Gold Mines | Australia | Valid | 17 | 2026-10-02 |
| 203.28.116.0/24 | AS7474SingTel Optus Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.28.117.0/24 | AS7474SingTel Optus Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.28.121.0/24 | AS17766Nexon Asia Pacific Pty Ltd | Australia | Valid | 17 | 2026-10-02 |
| 203.28.122.0/24 | AS2764AAPT Limited | Australia | Not found | 17 | 2026-10-02 |
| 203.28.126.0/24 | AS7575Australian Academic and Research Network (AARNet) | Australia | Not found | 19 | 2026-10-02 |
| 203.28.128.0/23 | AS132280Symphony Communication (Thailand) PCL. | Thailand | Not found | 18 | 2026-10-02 |
| 203.28.134.0/23 | AS152665Independent Television Limited | Bangladesh | Valid | 17 | 2026-10-02 |
| 203.28.141.0/24 | AS17766Nexon Asia Pacific Pty Ltd | Australia | Valid | 4 | 2026-10-02 |
| 203.28.142.0/24 | AS17535Genisyst Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.28.143.0/24 | AS135553VC Telecoms Sdn. Bhd. | Malaysia | Valid | 17 | 2026-10-02 |
| 203.28.150.0/24 | AS149164AVONDALE UNIVERSITY LIMITED | Australia | Not found | 19 | 2026-10-02 |
| 203.28.155.0/24 | AS53871Deltek, Inc. | Australia | Valid | 18 | 2026-10-02 |
| 203.28.156.0/24 | AS4826Vocus Connect International Backbone | Australia | Not found | 17 | 2026-10-02 |
| 203.28.159.0/24 | AS4739Internode Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.28.160.0/24 | AS136000Lightning Broadband Pty Ltd | Australia | Valid | 17 | 2026-10-02 |
| 203.28.166.0/24 | AS2764AAPT Limited | Australia | Not found | 17 | 2026-10-02 |
| 203.28.167.0/24 | AS2764AAPT Limited | Australia | Valid | 17 | 2026-10-02 |
| 203.28.168.0/24 | AS18986Calligo (Canada) Inc. | Canada | Valid | 17 | 2026-10-02 |
| 203.28.171.0/24 | AS29222Infomaniak Network SA | Switzerland | Valid | 17 | 2026-10-02 |
| 203.28.172.0/24 | AS137049Performance Peripherals Australasia | Australia | Not found | 1 | 2026-10-29 |
| 203.28.173.0/24 | AS2764AAPT Limited | Australia | Not found | 17 | 2026-10-02 |
| 203.28.176.0/24 | AS137049Performance Peripherals Australasia | Australia | Not found | 1 | 2026-10-29 |
| 203.28.181.0/24 | AS9449QLD VoIP Services Australia | Australia | Valid | 17 | 2026-10-02 |
| 203.28.183.0/24 | AS7545TPG Telecom Limited | Australia | Not found | 17 | 2026-10-02 |
| 203.28.184.0/24 | AS9893Cenitex | Australia | Not found | 17 | 2026-10-02 |
| 203.28.188.0/24 | AS9650QLD Government Business (IT) | Australia | Not found | 17 | 2026-10-02 |
| 203.28.189.0/24 | AS9650QLD Government Business (IT) | Australia | Not found | 17 | 2026-10-02 |
| 203.28.193.0/24 | AS4826Vocus Connect International Backbone | Australia | Not found | 17 | 2026-10-02 |
| 203.28.195.0/24 | AS154329Phoenix Business Solutions Australia Pty Ltd | Australia | Valid | 17 | 2026-10-02 |
| 203.28.202.0/23 | AS138390Trinity Grammar School | Australia | Not found | 19 | 2026-10-02 |
| 203.28.214.0/24 | AS8075Microsoft Corporation | Australia | Valid | 17 | 2026-10-02 |
| 203.28.215.0/24 | AS8075Microsoft Corporation | Australia | Valid | 17 | 2026-10-02 |
| 203.28.216.0/24 | AS45701PT. Internet Madju Abad Milenindo | Indonesia | Valid | 17 | 2026-10-02 |
| 203.28.217.0/24 | AS45701PT. Internet Madju Abad Milenindo | Indonesia | Valid | 17 | 2026-10-02 |
| 203.28.218.0/24 | AS45701PT. Internet Madju Abad Milenindo | Indonesia | Valid | 17 | 2026-10-02 |
| 203.28.219.0/24 | AS45701PT. Internet Madju Abad Milenindo | Indonesia | Valid | 17 | 2026-10-02 |
| 203.28.224.0/24 | AS10143Exetel Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.28.234.0/24 | AS1221Telstra Limited | Australia | Not found | 17 | 2026-10-02 |
| 203.28.238.0/24 | AS136557Host Universal Pty Ltd | Australia | Valid | 17 | 2026-10-02 |
| 203.28.240.0/22 | AS10148The University of Melbourne, Melbourne, Victoria | Australia | Not found | 19 | 2026-10-02 |
| 203.28.244.0/24 | AS10148The University of Melbourne, Melbourne, Victoria | Australia | Not found | 19 | 2026-10-02 |
| 203.28.247.0/24 | AS135069Feenix Communications Limited | New Zealand | Valid | 18 | 2026-10-02 |
| 203.28.249.0/24 | AS16509Amazon.com, Inc. | United States | Valid | 17 | 2026-10-02 |
| 203.28.250.0/23 | AS10148The University of Melbourne, Melbourne, Victoria | Australia | Not found | 19 | 2026-10-02 |
| 203.28.252.0/24 | AS152674Marvel Web Host | Bangladesh | Valid | 17 | 2026-10-02 |
| 203.28.253.0/24 | AS152674Marvel Web Host | Bangladesh | Valid | 17 | 2026-10-02 |
Every /24 inside it
00 · Evaluate
Test the real build first.
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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.