List of Pennsylvania area codes

Template:Short description Template:Pennsylvania area codes image map 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 Template:Efn Template:Efn	267, 445		Philadelphia and its immediately surrounding areas in the southeast corner of Pennsylvania
223	717Template:Efn
267	215Template:Efn, 445
272	570Template:Efn
412 Template:Efn Template:Efn	878		Pittsburgh and its immediately surrounding areas in Allegheny County
445	215Template:Efn, 267
484	610Template:Efn, 835
570 Template:Efn	272	717(1998)	Northeastern Pennsylvania, including Scranton and Wilkes-Barre
582	814Template:Efn
610 Template:Efn	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 Template:Efn Template:Efn	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 Template:Efn Template:Efn	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, 610Template:Efn
878	412Template:Efn, 724Template:Efn
Template:Notelist

See also

• List of North American Numbering Plan area codes
• North American Numbering Plan
• Original North American area codes