center frequencies

[billkirk888]

With multiple Center frequencies, when flying from a non covered ATC area into a covered ATC area - which Center frequency should be used? This may be shown on maps somewhere, however I've yet to find it.

Thanks for the help,
Bill

[Keith Smith]

Bill,

Take a close look at a low or high enroute chart, look for the small blue box that looks like a postage stamp.

[Keith Smith]

Bill, also check out this thread:
viewtopic.php?f=5&t=649