You can book PHX to SAN, SNA, SJC, SMF, GEG, BOI, TUS (selected flights) and some other ones I'm forgetting off the top of my head as standalone codeshares.
The fluffy press release AS put out last month touting how this isn't a big deal for 80% of its flyers seems to indicate you can only get credit for domestic AA flights if they are booked on Alaska stock. Am I interpreting that correctly? Or could I request credit for an AS DFW-FLL codeshare that I book with AA?