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Herndon, Pennsylvania, is in area code 570.

Area code 717 split in 1998. The southern portion, including Harrisburg, and also including communities just to the south of Herndon such as Gratz and Elizabethville, remained in 717. The northern portion, including Herndon, Scranton, Wilkes-Barre, and other communities, changed to 570.

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12y ago

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