cmoore@brl.mil (VLD/VMB) (09/22/89)
I have written of area code being required for local calls from Pa. to Del. (not required the other way around, though). There is some local service between NJ and Pa. starting around the Trenton area and proceeding north along the Delaware River, and it involves parts of areas 609 and 201. There is no local service between 215 area and Md.; notice that only 255 Kemblesville and 932 Oxford touch Md. I know of two cases where service across the 215/717 border in Pa. is local: between 215-593 Atglen and 717-442 Gap, and between 215-932 Oxford and 717-529 Kirkwood. With the recent exception of Delaware, I don't know of any duplications between such local prefixes outside 215 and the 215-area prefixes. The local calls from 201 into 215 should now require the area code (this was noted by someone else in this digest, to provide some relief in 201 while awaiting the 201/908 split there).