A little game for you mathematicians

No.11194965 ViewReplyOriginalReport
Here is a ciphered message. It doesn't say anything special, but I thought up an interesting method and I'd like to see if anyone here can figure it out. I figured you folks would be the most likely to enjoy this kind of thing, so have at it. Bonus points if you don't use any tools other than your own brain.

AAKXTBMOOLQRF