Last I heard, the -87's and -90's were pretty much flying on the routes that Reno Air used them on.
The -90's were (and still are) used almost exclusively on the SNA-SJC run, but I also saw them used on LAX-SJC a few times.
The -87's flew (and fly) mainly:
LAX-RNO, LAS-RNO, RNO-ORD, SJC-SAN, SJC-LAX
If anyone else can update this, please do.