In the western US, the "SNOTEL" (snow telemetry) system of remote weather stations that take measurements of snowpack to inform water supply forecasts uses this method to return data for a number of sites, although I believe they are transitioning a number of sites to a satellite based system.
Also amateur radio operators still do this, for fun!
I have used the SNOTEL data professionally, and have bounced messages off of meteors for fun a few times.