Thanks John,Yesterday, they were on Phoenix FD A-10, 151.3700.
I think I saw a comment that AZ DFFM was using Tac 5. 151.1750 maybe?
Tonto NF was using Fire Net 1 at first, but then switched to Fire Net 2 supposedly.
I don't know what air-air or air-ground may have been in use.
That was all yesterday. Today's frequencies may very well have changed. But it's a starting point.