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Area codes 610, 484, and 835
Telephone area codes in Pennsylvania, United States / From Wikipedia, the free encyclopedia
Area codes 610, 484, and 835 are telephone area codes in the North American Numbering Plan (NANP) for the eastern and southeastern regions of Pennsylvania. The numbering plan area (NPA) includes regions to the west of Philadelphia and the cities Allentown, Bethlehem, and Reading. It includes much of the Delaware Valley, including almost all of Delaware County, most of the Philadelphia Main Line, and all of the Lehigh Valley.
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![Area code 484](http://upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Area_code_484.svg/400px-Area_code_484.svg.png)