Area Code 315 is located in NY.
Cities located in 315 area code are Syracuse, Oswego, Newark, Potsdam, Auburn, Alexandria Bay, Skaneateles, Herkimer, Waterloo, Watertown, Utica, Rome, Penn Yan, Hamilton, Canton, Geneva, Oneida, Adams, Tully, Seneca Falls, Camden, Massena, Durhamville, Carthage, Gouverneur, Madrid, Jordan, Clayton, Lyons, Wolcott, Pulaski, Baldwinsville, Moravia, Star Lake, Marion, Camillus, Brier Hill, Nicholville, Fayetteville, Ontario, Heuvelton, Croghan, Russell, Lyons Falls, Norwood, Raquette Lake, Inlet, Boonville, East Syracuse, Aurora, Savannah, Vernon, Old Forge, Morristown, Lowville, Clinton, Norfolk, Sandy Creek, Waddington, Winthrop, Forestport, Ogdensburg, Turin, Fulton, Liverpool, Dolgeville, Clifton Springs, Ellisburg, Alexandria, Sodus, Munnsville, Sempronius, Moravia, Palmyra, Minoa, Little Falls, Natural Bridge, Macedon, Harrisville, Phelps, Romulus, Edwards, Hannibal, Hammond, Rodman, Mac Dougall, North Rose, Williamson, Branchport, Osceola, Constantia, Parish, Cato, Theresa, Bridgeport, Amber, Dexter, Phila, Copenhagen, Sackets Harbor, Chaumont, South Otselic, Cape Vincent, Cazenovia, La Fargeville, Fort Drum, New Woodstock, Central Square, Marcellus, Cleveland, La Fayette, Manlius, Fabius, Morrisville, Chittenango, Earlville, Phoenix, Canastota, Cicero, Red Creek, Port Byron, Oriskany Falls, Winfield, Poland, Ava, Remsen, Weedsport, Georgetown, Clayville, Waterville, Vernon Center, Newport, De Ruyter, Brookfield, Richfield Springs, North Brookfield, Holland Patent, Union Springs, Madison, Ilion, Barneveld, Clyde, Syracuse, Henderson, Sterling, Mexico, Williamstn.
Counties located in this area code are Onondaga County, Oswego County, Wayne County, Saint Lawrence County, Cayuga County, Jefferson County, Herkimer County, Seneca County, Oneida County, Yates County, Madison County, Ontario County, Lewis County, Hamilton County, Chenango County, Otsego County