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603 Area Code: Location, Time Zone & Phone Lookup - Page 2

(603)
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603 is a telephone area code covering the southwestern corner of New Hampshire, including the cities of Manchester, Nashua, and Concord.Area code 603 was one of the original area codes established in 1947. It originally covered the entire state of New Hampshire. In 1995, area code 603 was split, and 603 was reduced to its current coverage area.

603 is the area code for southeastern New Hampshire. This region includes the cities of Manchester, Nashua, and Concord. 603 is also the code for a small portion of Vermont.

Phone Number Prefixes In The 603 Area Code