Numbers Stations

For the last one hundred years, intelligence agencies from many nations have broadcast numerical codes over shortwave radio to their spies around the world. The receivers of these broadcasts remain anonymous because anyone in the world can hear the transmission, so there's no way to localize the actual recipient. Presumably the recipients can decode the numbers. The stations sending these broadcasts are called Number Stations.

I was unaware of the existence of these stations until today. Clearly the creators of Lost were aware of them, as the broadcast of a series of numbers plays a huge part in the series.

Check out some of the weird broadcasts here:  The Conet Project. I especially recommend # 28 on the list.

I love stuff like this.