Newps wrote:
A class C tower could easily do that. Call up about 6 miles out and if
there's no traffic I can issue you a clearance as the tower controllers
at class C's are approach controllers. However you still have to meet
the normal constraints of an IFR clearance.

That makes sense with a traditional Class C (dedicated approach
control). Is this still the case at facilities like SJC and BUR where
the ARTCC is located in another metropolitan area?