Well, the PCM calibration is alpha/alpha/alpha/digit, so none of those is it.
You could use the Ford Part Number for the PCM itself to back into the cal code. That PN will be XXXX-12A650-XX. 12A650 is the base number for PCMs. You'll need the prefix and suffix (and if it was ever reflashed, there will be a sticker, probably under the hood, with the new PN on it). If you get that, post it here. I think Chris Wong has some info regarding PN to Cal info (for specific calibrations).
Did you actually pull the PCM? There should be a sticker on the main connector with the Ford PN on it, and probably the cal code as well. The sticker will have a big honkin' bar code on it. This is the data from the factory and is moot if it was ever reflashed.
Worse comes to worse, you could go to your local Ford (or Mercury or Lincoln) dealer, and they can hook it up to the NGS setup. That'll pull the cal code from it for sure, but probably won't be free.
HTH
