US Airways Dividend Miles (Pre-FlightFund Merger) - Who has the latest fare codes for F

A pal who uses expertflyer.com asked me what the domestic and int'l codes are for F upgrades and the only one I could supply off the top of my head was:

G = domestic u/g to F on paid coach

I know X = coach award seat inventory, but I've never known what domestic F award inventory was.

If anyone can confidently supply add'l info, I'd greatly appreciate it. THANKS.

O = First for award travel at the 40000/50000 level.

actually G is wrong the correct bkg code is E.

Looking

P- Upgraded First from Full Fare Y/B/N/U Coach
E- Upgraded First from Discounted Coach (non-transatlantic)
O- Domestic First Class Award
R- Envoy Class Transatlantic Upgrade
I- Transatlantic Envoy Class Award

I'm reasonably certain that G fares are consolidator ultracheap fares, and aren't usually individually bookable.

The E bucket isn't published AFAIK but P is.