660 Area Code

Primary cities: Chillicothe, Sedalia, Warrensburg, Kirksville, Maryville ... all cities

Cities: Albany, Allendale, Alma, Amoret, Amsterdam, Andover, Appleton City, Arbela, Armstrong, Arrow Rock, Athens, Atlanta, Avalon, Baring, Barnard, Bethany, Bethel, Bevier, Blackburn, Blackwater, Blairstown, Bloomington, Bogard, Boonville, Bosworth, Brashear, Braymer, Breckenridge, Brimson, Brock, Brookfield, Browning, Brunswick, Bucklin, Bunceton, Burlington Junction, Butler, Bynumville, Cainsville, Calhoun, Callao, Carrollton, Centerview, Chilhowee, Chillicothe, Chula, Clarence, Clearmont, Clifton Hill, Clinton, Coal, Coffey, Cole Camp, Conception Junction, Concordia, Cowgill, Craig, Creighton, Dalton, Darlington, Dawn, De Witt, Deepwater, Denver, Downing, Eagleville, East Pleasanton, Edina, Elmer, Elmo, Ethel, Excello, Fairfax, Fayette, Florence, Forest Green, Fortuna, Foster, Gallatin, Galt, Gentry, Gilliam, Gilman City, Glasgow, Gorin, Graham, Grant City, Green City, Green Ridge, Greentop, Hale, Hardin, Higbee, Higginsville, High Point, Holliday, Hopkins, Houstonia, Hume, Huntsville, Hurdland, Ionia, Jacksonville, Jameson, Jamesport, Jamestown, Kahoka, Kansas City, Keytesville, Kimberly, King City, Kirksville, Knob Noster, Knox City, Knoxville, La Belle, La Monte, La Plata, Laclede, Lancaster, Laredo, Latham, Leeton, Lemons, Leonard, Lexington, Lincoln, Linneus, Lock Springs, Lucerne, Ludlow, Luray, Macon, Madison, Maitland, Malta Bend, Marceline, Marshall, Marshall Junction, Martinstown, Maryville, Meadville, Memphis, Mendon, Mercer, Miami, Milan, Moberly, Montrose, Mooresville, Mound City, Mount Moriah, Nelson, New Boston, New Cambria, New Franklin, New Hampton, Newark, Newtown, Norborne, Novelty, Novinger, Omaha, Oregon, Otterville, Paris, Parnell, Pattonsburg, Pickering, Pilot Grove, Pollock, Polo, Powersville, Prairie Hill, Prairie Home, Princeton, Purdin, Queen City, Ravenwood, Revere, Ridgeway, Rock Port, Rockville, Rothville, Salisbury, Sedalia, Shannondale, Sheridan, Skidmore, Slater, Smithton, South Braddyville, South Davis City, South Hamburg, South Lineville, South Seymour, Speed, Spickard, Stanberry, Steffenville, Stet, Sumner, Sweet Springs, Syracuse, Tarkio, Tina, Tipton, Tobin Creek, Trenton, Unionville, Urich, Warrensburg, Warsaw, Washington Center, Watson, Waverly, Wayland, Westboro, Westville, Wheeling, Windsor, Winigan, Winston, Wooldridge, Wyaconda