For those of you following the mystery of two phone numbers stations found from postings on Craigslist, I have interesting news: A third posting, and a third message, have appeared.
The phone numbers stations, when called, play a short message reminiscent of ordinary numbers stations normally heard on shortwave radio. On May 8, someone posted a message to Craigslist with a telephone number which, when called, played such a message, and on May 29, a second message was posted to Craigslist with a different telephone number and a different message.
I find these messages very interesting. I wish I had more time to devote to learning about cryptanalysis. I'm definitely in the camp that thinks there's a message here and that it's discoverable. I doubt it's anything very important (national security), but that doesn't curb my desire to know what it says.