Freaky numbers stations
 

I don't know if you guys have seen this before but I found this while browsing around. Creepy!

http://www.ryan-silva.com/muzak/

and more specifically:

http://www.ryan-silva.com/muzak/E3_31-Jan-00.mp3

Supposedly they're staitions that are used to broadcast messages to foreigh spies and operatives in the field. Pretty much all that is known is speculation though.

These numbers transmissions are really common, although many of you may
have never heard one, probably because you are not looking in the most
unlikely of places (the non-allocated shortwave bands). The numbers
broadcasts normally appear in the UTE and RTTY designated bands, which
is why it is rare for an SWL listener to hear these broadcasts.

Food for thought!

I'm sure there's some rational explanation...

but creepy none the less!