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Our area code lookup makes it easy to find area codes in New Hampshire. Includes area code listings of all New Hampshire area codes with corresponding cities.
Area code 603 is the sole area code for the U.S. state of New Hampshire in the North American Numbering Plan (NANP). It was created as one of the original 86 numbering plan areas in October 1947.
Below are the list New Hampshire state area codes by city and county listed by alphabetical order. Find New Hampshire area codes by city or lookup which cities belong to an area code. Area code 603 covers the entire state of New Hampshire.
Area codes list for the United States, state New Hampshire. Reverse phone lookup, search by area code or region. Local time and map of New Hampshire.
There are 1 active area codes in the state of New Hampshire. Each of these area codes are listed below. There are two lists that Wirefly provides for the area codes in New Hampshire. The first table below shows the most populated cities in New Hampshire with the area codes listed next to them.
Find New Hampshire area codes by city or lookup which cities belong to an area code.
New Hampshire is currently using 1 area codes. 603. Manchester, Nashua, Concord, Dover, Rochester, Salem, Keene, Derry, Portsmouth, Laconia. All phone area codes in the New Hampshire with major cities covered.
