There's a list in the MM&A Yahoo group.
In summary:
BAR
Ch 1 160.440 (Dispatcher, Service Center)
Ch 2 160.920 (repeater output)
Ch 3 160.680 (Mainline Dispatcher)
Ch 4 160.740 (repeater output)
Ch 5 160.920 (MOFW)
CDAC
CP Ch 14 161.175 (repeater output)
CP Ch 13 161.175 (MOFW)
CP Ch 3 160.425/161.475 (Point/train call-in)
CP Ch 4 161.115 (Mainline Dispatcher)
QSR
CP Ch 1 161.475 (Yard)
CP Ch 19 161.505 (MOFW)
CP Ch 20 161.505 (repeater output)
Basically, it seems the radio channel assignments are still divided among the former Iron Road components, so they would apply on the former territories, example, CDAC on the Moosehead Sub, and QSR on the Sherbrooke Sub.
My limited esperience is that the Dispatcher uses 161.115 on the Moosehead Sub., and 160.680 on the BAR.