Originally Posted by WineCountryUA

Flight number does not matter. Flight operator and ticket stock (ticket number starting with 016....) are what matters

The use of UA flight numbers increases the chances it will be UA ticket but does not guarantee.

You can ask your TA as your tickets may not be issued until closer to departure for US gov tickets

Note if not 016 ticket stock, the *A flights will still be mileage earning, it just gets a bit more complexity to determine the earning and the earning for a *A partner operated flight is calculated differently than a UA operated flight.

Yeah I got ahead of myself (already have them one foot out the door)