Originally Posted by IslandSkies

Well the fact that they can tell who is full fare says to me they also know who is not (ie upgrades and award tickets). But since those with 1K/GS status still get same/higher status as full-fare for meal service I guess it doesn't matter unless you fall below those levels and didn't pay full fare. I would assume other carriers might have a similar ranking scheme to figure out who gets what. Now if you're asking because you're worried about making changes to the ticket it doesn't matter what it says on their manifest, the FAs don't do the rebooking, it would be a reservations agent or airport customer service agent who definitely would know what type of ticket it is.