What is an Area Code? An area code is a section of a telephone number that denotes the broad area that the phone receiving the call is based in. Area codes were first introduced circa 1947 for operator use only. Area codes are three-digit numbers that represent Numbering Plan Areas (NPAs). The area code for a particular city or region is the series of numbers that you have to dial before someone’s number if you are making a phone call to that place from a different area. Area code 603 serves the state of New Hampshire.
The Table Below Shows the Towns and Cities That Use Area Code 603
| Alton Amherst Antrim Ashland Bartlett Belmont Bennington Berlin Bethlehem Blodgett Landing Bradford Bristol Canaan Center Ossipee Center Sandwich Charlestown Claremont Colebrook Concord Contoocook Conway Derry Dover Durham | East Merrimack Enfield Epping Exeter Farmington Franklin Goffstown Gorham Greenville Groveton Hampton Hampton Beach Hancock Hanover Henniker Hillsborough Hinsdale Hooksett Hudson Jaffrey Keene Laconia Lancaster Lebanon | Lincoln Lisbon Littleton Londonderry Loudon Manchester Marlborough Melvin Village Meredith Milford Milton Milton Mills Mountain Lakes Nashua Newfields New Hampton New London Newmarket Newport North Conway North Walpole North Woodstock Peterborough Pinardville | Pittsfield Plainfield Plymouth Portsmouth Raymond Rochester Sanbornville Seabrook Beach Somersworth South Hooksett Suissevale Suncook Tilton Northfield Troy Union Walpole Warner West Stewartstown West Swanzey Whitefield Wilton Winchester Wolfeboro Woodsville |