Interactive map of the numbering plan areas of the Commonwealth of Pennsylvania (blue).
This is a list of telephone area codes of Pennsylvania.
In 1947, the American Telephone and Telegraph Company divided Pennsylvania into four numbering plan areas (NPAs) and assigned distinct area codes for each. Since 1995, several relief actions in form of area code splits and overlays have expanded the list of area codes. As a result, all numbering plan areas are overlay complexes and ten-digit dialing is mandatory statewide.
Area code
Additional overlay codes
Parent of area code splits
Location
215 † ‡
267, 445
Philadelphia and its immediately surrounding areas in the southeast corner of Pennsylvania
223
717‡
267
215‡, 445
272
570‡
412 † ‡
878
Pittsburgh and its immediately surrounding areas in Allegheny County
445
215‡, 267
484
610‡, 835
570 ‡
272
717(1998)
Northeastern Pennsylvania, including Scranton and Wilkes-Barre
582
814‡
610 ‡
484, 835
215, 717(1994)
Southeastern Pennsylvania outside Philadelphia, including the Lehigh Valley but excluding all but northernmost Bucks County and the eastern half of Montgomery County
717 † ‡
223
South Central Pennsylvania, including Harrisburg, Lancaster, and York.
724
878
412(1998)
Western Pennsylvania outside Pittsburgh and Allegheny County except for outermost areas, such as Wexford, Gibsonia, Tarentum, parts of Monroeville, and parts of southern Allegheny County; completely surrounds 412
814 † ‡
582
Northwestern and central Pennsylvania, from Bedford County to Centre County extending to the shores of Lake Erie, and including the city of Erie
835
484, 610‡
878
412‡, 724‡
Notes:
† Original area code assigned in 1947
‡ parent code of overlay complex
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