WUS preferred routes

[Acroshaw]

Apologies if this is answered elsewhere but where is the best place to pick up preferred routes for the western expansion, as I am assuming the TEC route system doesn't exist there due to the greater distances? Currently I am using foreflight and it always provides route advise, I just wanted to know if the routes it comes up with (which have I assume been accepted by real world atc) are the same as preferred routes? Cheers! And its good to be back on pe(been away due to illness again)

[Keith Smith]

Flightaware, Foreflight and peaware will show you recently cleared routes. That is about as good as it's going to get as there aren't any applicable TEC routes.