Area code 603 has the following city / states:

• Acworth, New Hampshire	• Alstead, New Hampshire	• Alton, New Hampshire
• Alton Bay, New Hampshire	• Amherst, New Hampshire	• Andover, New Hampshire
• Antrim, New Hampshire	• Ashland, New Hampshire	• Ashuelot, New Hampshire
• Atkinson, New Hampshire	• Auburn, New Hampshire	• Barnstead, New Hampshire
• Barrington, New Hampshire	• Bartlett, New Hampshire	• Bath, New Hampshire
• Bedford, New Hampshire	• Belmont, New Hampshire	• Bennington, New Hampshire
• Berlin, New Hampshire	• Bethlehem, New Hampshire	• Bow, New Hampshire
• Bradford, New Hampshire	• Bretton Woods, New Hampshire	• Bristol, New Hampshire
• Brookline, New Hampshire	• Campton, New Hampshire	• Canaan, New Hampshire
• Candia, New Hampshire	• Canterbury, New Hampshire	• Center Barnstead, New Hampshire
• Center Conway, New Hampshire	• Center Harbor, New Hampshire	• Center Ossipee, New Hampshire
• Center Sandwich, New Hampshire	• Center Strafford, New Hampshire	• Center Tuftonboro, New Hampshire
• Charlestown, New Hampshire	• Chester, New Hampshire	• Chesterfield, New Hampshire
• Chichester, New Hampshire	• Chocorua, New Hampshire	• Claremont, New Hampshire
• Colebrook, New Hampshire	• Concord, New Hampshire	• Contoocook, New Hampshire
• Conway, New Hampshire	• Cornish, New Hampshire	• Cornish Flat, New Hampshire
• Danbury, New Hampshire	• Danville, New Hampshire	• Deerfield, New Hampshire
• Derry, New Hampshire	• Dover, New Hampshire	• Drewsville, New Hampshire
• Dublin, New Hampshire	• Durham, New Hampshire	• East Andover, New Hampshire
• East Candia, New Hampshire	• East Derry, New Hampshire	• East Hampstead, New Hampshire
• East Hebron, New Hampshire	• East Kingston, New Hampshire	• East Wakefield, New Hampshire
• Eaton Center, New Hampshire	• Effingham, New Hampshire	• Elkins, New Hampshire
• Enfield, New Hampshire	• Enfield Center, New Hampshire	• Epping, New Hampshire
• Epsom, New Hampshire	• Errol, New Hampshire	• Etna, New Hampshire
• Exeter, New Hampshire	• Farmington, New Hampshire	• Fitzwilliam, New Hampshire
• Francestown, New Hampshire	• Franconia, New Hampshire	• Franklin, New Hampshire
• Freedom, New Hampshire	• Fremont, New Hampshire	• Georges Mills, New Hampshire
• Gilford, New Hampshire	• Gilmanton, New Hampshire	• Gilmanton Iron Works, New Hampshire
• Gilsum, New Hampshire	• Glen, New Hampshire	• Glencliff, New Hampshire
• Goffstown, New Hampshire	• Gorham, New Hampshire	• Goshen, New Hampshire
• Grafton, New Hampshire	• Grantham, New Hampshire	• Greenfield, New Hampshire
• Greenland, New Hampshire	• Greenville, New Hampshire	• Groveton, New Hampshire
• Guild, New Hampshire	• Hampstead, New Hampshire	• Hampton, New Hampshire
• Hampton Falls, New Hampshire	• Hancock, New Hampshire	• Hanover, New Hampshire
• Harrisville, New Hampshire	• Haverhill, New Hampshire	• Hebron, New Hampshire
• Henniker, New Hampshire	• Hill, New Hampshire	• Hillsboro, New Hampshire
• Hinsdale, New Hampshire	• Holderness, New Hampshire	• Hollis, New Hampshire
• Hooksett, New Hampshire	• Hudson, New Hampshire	• Intervale, New Hampshire
• Jackson, New Hampshire	• Jaffrey, New Hampshire	• Jefferson, New Hampshire
• Kearsarge, New Hampshire	• Keene, New Hampshire	• Kingston, New Hampshire
• Laconia, New Hampshire	• Lancaster, New Hampshire	• Lebanon, New Hampshire
• Lempster, New Hampshire	• Lincoln, New Hampshire	• Lisbon, New Hampshire
• Litchfield, New Hampshire	• Littleton, New Hampshire	• Lochmere, New Hampshire
• Londonderry, New Hampshire	• Loudon, New Hampshire	• Lyme, New Hampshire
• Lyme Center, New Hampshire	• Lyndeborough, New Hampshire	• Madison, New Hampshire
• Manchester, New Hampshire	• Marlborough, New Hampshire	• Marlow, New Hampshire
• Meadows, New Hampshire	• Melvin Village, New Hampshire	• Meredith, New Hampshire
• Meriden, New Hampshire	• Merrimack, New Hampshire	• Milan, New Hampshire
• Milford, New Hampshire	• Milton, New Hampshire	• Milton Mills, New Hampshire
• Mirror Lake, New Hampshire	• Monroe, New Hampshire	• Mont Vernon, New Hampshire
• Moultonborough, New Hampshire	• Mount Sunapee, New Hampshire	• Mount Washington, New Hampshire
• Munsonville, New Hampshire	• Nashua, New Hampshire	• Nelson, New Hampshire
• New Boston, New Hampshire	• New Castle, New Hampshire	• New Durham, New Hampshire
• New Hampton, New Hampshire	• New Ipswich, New Hampshire	• New London, New Hampshire
• Newbury, New Hampshire	• Newfields, New Hampshire	• Newmarket, New Hampshire
• Newport, New Hampshire	• Newton, New Hampshire	• Newton Junction, New Hampshire
• North Conway, New Hampshire	• North Hampton, New Hampshire	• North Haverhill, New Hampshire
• North Salem, New Hampshire	• North Sandwich, New Hampshire	• North Stratford, New Hampshire
• North Sutton, New Hampshire	• North Walpole, New Hampshire	• North Woodstock, New Hampshire
• Northwood, New Hampshire	• Nottingham, New Hampshire	• Orford, New Hampshire
• Ossipee, New Hampshire	• Pelham, New Hampshire	• Peterborough, New Hampshire
• Piermont, New Hampshire	• Pike, New Hampshire	• Pittsburg, New Hampshire
• Pittsfield, New Hampshire	• Plainfield, New Hampshire	• Plaistow, New Hampshire
• Plymouth, New Hampshire	• Portsmouth, New Hampshire	• Randolph, New Hampshire
• Raymond, New Hampshire	• Rindge, New Hampshire	• Rochester, New Hampshire
• Rollinsford, New Hampshire	• Rumney, New Hampshire	• Rye, New Hampshire
• Rye Beach, New Hampshire	• Salem, New Hampshire	• Salisbury, New Hampshire
• Sanbornton, New Hampshire	• Sanbornville, New Hampshire	• Sandown, New Hampshire
• Seabrook, New Hampshire	• Silver Lake, New Hampshire	• Somersworth, New Hampshire
• South Acworth, New Hampshire	• South Danville, New Hampshire	• South Effingham, New Hampshire
• South Newbury, New Hampshire	• South Sutton, New Hampshire	• South Tamworth, New Hampshire
• Spofford, New Hampshire	• Springfield, New Hampshire	• Stinson Lake, New Hampshire
• Stoddard, New Hampshire	• Strafford, New Hampshire	• Stratham, New Hampshire
• Sullivan, New Hampshire	• Sunapee, New Hampshire	• Suncook, New Hampshire
• Swanzey, New Hampshire	• Tamworth, New Hampshire	• Temple, New Hampshire
• Tilton, New Hampshire	• Troy, New Hampshire	• Twin Mountain, New Hampshire
• Union, New Hampshire	• Walpole, New Hampshire	• Warner, New Hampshire
• Warren, New Hampshire	• Washington, New Hampshire	• Waterville Valley, New Hampshire
• Weare, New Hampshire	• Wentworth, New Hampshire	• West Chesterfield, New Hampshire
• West Lebanon, New Hampshire	• West Nottingham, New Hampshire	• West Ossipee, New Hampshire
• West Peterborough, New Hampshire	• West Stewartstown, New Hampshire	• West Swanzey, New Hampshire
• Westmoreland, New Hampshire	• Whitefield, New Hampshire	• Wilmot, New Hampshire
• Wilton, New Hampshire	• Winchester, New Hampshire	• Windham, New Hampshire
• Winnisquam, New Hampshire	• Wolfeboro, New Hampshire	• Wolfeboro Falls, New Hampshire
• Wonalancet, New Hampshire	• Woodstock, New Hampshire	• Woodsville, New Hampshire

Look up cities and states by area code through our directory. This directory is set up to display al l the area codes in the United States. If you select the area code, it will display all the cities that belong to that area code.

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