I can on BA, when I sign into my BAEC account and all my BA flights are there. When I check them individually, they all show my AA#. The SYD-ORD flights can be found on QF's MMB, although when I log into my QFF account and click on "View Your Bookings", it doesn't show the flights. In MMB, the SYD-ORD flights also show my AA#.