Area Code 603

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