PRIA only takes effect at the time of hire, at which point the hiring airline is required to submit PRIA requests to anyone who has employed you as a pilot. These past employers are required to respond by forwarding all of your training and flight-ops discipline records, going back 5 years IIRC. Non-flight ops discipline records are not supposed to be returned and includes such things as punching your CP, phantom pooper, constantly late for work, etc.

There is no "central repository" for PRIA records, they consist simply of whatever records your past employer has. In the case of a part 91 employer, they might have no records at all. For this reason you cannot do a PRIA check on yourself (you CAN request all of your FAA records at any time, and should probably do so).

The only way you can find out what records a certain PRIA request will return is to check a box on the form which obligates the respondents to send a copy to you also...the downside is that by the time you get the info it's probably too late to resolve any issues. But check the box anyway, just so you know for future job hunts.

PRIA requests do NOT go to the military services (active or reserve). A hiring airline will want to see your DD-214 (the full-length copy), and military flight records...they know how to read between the lines on a DD-214 (so...why didn't you get a NMCAM at the end of your last tour?).