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Area Code	City	State Code
303	Allenspark, Arvada, Aurora, Bailey, Bennett, Black Hawk, Bond, Boulder, Brighton, Broomfield, Buffalo Creek, Byers, Castle Rock, CentralCity, CommerceCity, Conifer, Dacono, DeerTrail, Denver, Dumont, Dupont, Eastlake, Elbert, Eldorado Springs, Elizabeth, Empire, Englewood, Erie, Evergreen, Firestone, Fort Lupton, Foxton, Franktown, Frederick, Georgetown, Golden, Grant, Henderson, Hereford, Highlands Ranch, Hudson, Hygiene, Idaho Springs, Idledale, Indian Hills, Jamestown, Keenesburg, Kiowa, Kittredge, Lafayette, Larkspur, Littleton, Longmont, Louisville, Louviers, Lyons, Morrison, Nederland, Niwot, Parker, Pine, Pinecliffe, Roggen, Rollinsville, Sedalia, Sedgwick, Shawnee, Silver Plume, Strasburg, Ward, Watkins, Westminster, Wheat Ridge	CO
719	Adams State College, Agate, Aguilar, Alamosa, Alma, Alpine, Alpine Village, Amo, Antonito, Aqua Ramon, Arapahoe, Ark Valley Corr Facl, Arlington, Aroya, Arriba, Avondale, Barton, Baxter, Baxterville, Belle Plain, Bents Fort, Bents Old Fort, Beshoar Jct, Bessemer, Bethune, Beulah, Big Bend, Black Forest, Blanca, Blende, Bonanza City, Boncarbo, Boone, Bountiful, Bovina, Boyero, Brandon, Branson, Brewster, Bristol, Broadacre, Buckskin Joe, Buena Vista, Burlington, C O Interstate Gas, Cablevision, Caddoa, Cadet Station, Calhan, Campo, Canon City, Carlton, Carmel, Cascade, Cedarwood, Center, Chama, Cheney Center, Cheraw, Cheyenne Mountain Afb, Cheyenne Mt Complex, Cheyenne Mtn Afb, Cheyenne Wells, Chipita Park, Chivington, Cimarron Hills, Cleora, Climax, Cmafb, Co Spgs, Co Spgs Utilities, Coal Creek, Coaldale, Cokedale, Colorado City, Colorado College, Colorado Lottery, Colorado Springs, Columbia House, Como, Compassion International, Conejos, Consolidated Space Operation, Cotopaxi, Creede, Crestone, Cripple Creek, Crowley, Crystal Hills, Crystola, Csoc, Cuchara, Cuchara Valley, Current Inc, Del Norte, Delhi, Deora, Devine, Divide, Eads, East Alamosa, East Weston, Eastonville, Edison, Edler, El Moro, El Rito, Elkton, Ellicott, Ent Air Force Base, Espinoza, Estrella, Exchange Natl Bank, Fair View, Fairmont, Fairplay, Falcon, Falcon Afb, Farisita, Farista, Federal Correctional Complex, First National Bank, First View, Flagler, Florence, Florida, Florissant, Florissant Fossil Beds Natio, Focus On The Family, Forbes Park, Fort Bent, Fort Carson, Fort Garland, Fort Lyon, Fountain, Fowler, Fox Creek, Freeman, Ft Bent, Ft Carson, Ft Garland, Ft Lyon, G P O, Garcia, Gardner, Genoa, Goldfield, Granada, Granite, Great Sand Dunes National Mo, Green Mountain Falls, Greenwood, Guffey, Gulnare, Hartman, Hartsel, Hasty, Haswell, Hawley, Henry, Hillside, Hoehne, Holly, Homelake, Hooper, Horn Creek, Howard, Hugo, Ilse, Indian Creek, Iron City, Jansen, Jaroso, Jefferson, John Martin Reservoir, Johnson Village, Karval, Kim, Kit Carson, Koen, Kornman, La Isla, La Jara, La Junta, La Valley, La Veta, Lake George, Lamar, Lariat, Las Animas, Las Mesitas, Lascar, Leadville, Limon, Limon Correctional Facility, Lobatos, Los Fuertes, Los Pinas, Lubers, Ludlow, Lycan, Manassa, Manitou Springs, Manzanola, Masonic Park, Matheson, Maxey, Maxeyville, May Valley, Maysville, Mc Clave, Mesa, Mesita, Mirage, Model, Moffat, Mogote, Monarch, Monte Vista, Monument, Monument Lake Park, Monument Park, Morgan, Mosca, Mount Princeton, Mutual, Nathrop, Ninaview, North Avondale, North La Junta, Numa, Ojo, Olney Springs, Olympic Comm, Ordway, Ortiz, Paisaje, Palmer Lake, Parkdale, Penitentiary, Penrose, Peterson A F B, Peterson Afb, Peterson Air Force Base, Peyton, Pinon, Pinon Canyon, Plaza, Poncha Springs, Portland, Pritchett, Prospect Heights, Prowers, Pryor, Pueblo, Pueblo Army Depot, Pueblo Depot Activity, Pueblo West, Punkin Center, Ramah, Red Wing, Richfield, Roberta, Rockrimmon, Rockvale, Rocky Ford, Romeo, Rosita, Rush, Rye, Saguache, Saint Elmo, Salida, San Antonio, San Francisco, San Isabel, San Luis, San Miguel, San Pablo, San Pedro, San Rafeal, Sangre De Cristo Ranches, Sargents School, Schriever Afb, Schriever Air Force Base, Schriever Air Station, Security, Segundo, Shady Camp, Sheridan Lake, Silver Cliff, Simla, Smeltertown, Sopris, South Fork, Spar City, Springfield, Stanley, Starkville, Stonewall, Stonington, Stratmoor Hills, Stratton, Sugar City, Summitville, Swink, Swissvale, Tanglewood Acres, Tarryall, Tercio, Texas Creek, Thatcher, Timber Lake, Timpas, Toltec, Toonerville, Torres Canon, Towner, Track City, Trinchera, Trinidad, Truckton, Turret, Twin Lakes, Twin Rock, Two Buttes, Tyrone, U S A F Academy, United States Air Force Acad, Us Olympic Committee, Usaf Academy, Ute Pass, Utleyville, Victor, Vigil, Vilas, Villa Grove, Villegreen, Vineland, Vroman, Wagon Wheel Gap, Wahatoya, Walsenburg, Walsh, Walter Drake, Washington, Waverly, Wellsville, West Farm, Westcliffe, Weston, Westwood Lake, Wetmore, Widefield, Wild Horse, Wildhorse Mesa, Wiley, Williamsburg, Woodland Park, Woodmoor, Yoder	CO
970	Akron, Allison, Almont, Amherst, Antlers, Anton, Appleton, Arboles, Arickaree, Arriola, Aspen, Aspen-gerbaz, Atwood, Ault, Austin, Avon, Axel, Baldwin, Basalt, Battlement Mesa, Bayfield, Bear Mine, Beaver Creek, Bedrock, Bellvue, Berthoud, Blue Mountain, Bond, Bowie, Breckenridge, Breen, Briggsdale, Browns Park, Brush, Buford, Burns, Cahone, Capulin, Carbondale, Cardiff, Carr, Cedaredge, Cement Creek, Chimney Rock, Chromo, Cimarron, Clark, Clifton, Coalby, Coalmont, Collbran, College Heights, Colona, Colorado National Monument, Colorado State University, Cope, Copper Mountain, Cortez, Cory, Cowdrey, Craig, Crawford, Crested Butte, Crested Butte So, Crook, Crystal, De Beque, Delta, Dillon, Dinosaur, Dolores, Dotsero, Dove Creek, Doyleville, Drake, Dunton, Durango, Eagle, East Orchard Mesa, East Vail, Eastman Kodak Co, Eaton, Eckert, Eckley, Edwards, Egnar, El Jebel, Elk Springs, Estes Park, Evans, Fleming, Fort Collins, Fort Morgan, Fraser, Frisco, Fruita, Fruitvale, Ft Collins, Galeton, Garden City, Gateway, Gem Village, Gilcrest, Gill, Gilman, Glade Park, Glen Haven, Glenwood, Glenwood Spgs, Glenwood Springs, Granby, Grand Jct, Grand Junction, Grand Lake, Grand Mesa, Grand Valley, Greeley, Greystone, Grover, Gunnison, Gypsum, Hale, Hamilton, Haxtun, Hayden, Heeney, Hereford, Hermosa, Hesperus, Hillrose, Holyoke, Hot Sulphur Springs, Hotchkiss, Hovenweep National Monument, Hoyt, Idalia, Ignacio, Iliff, Indian Agency, Iola, Jacks Cabin, Joes, Johnstown, Julesburg, Kersey, Keystone, Kirk, Kline, Kremmling, La Salle, Laird, Lake City, Laporte, Lasauses, Last Chance, Lay, Lazear, Lewis, Lindon, Livermore, Log Lane Village, Loma, Loveland, Lucerne, Mack, Maher, Mancos, Marble, Marvel, Masonville, Massadona, Maybell, Mc Coy, Mead, Meeker, Meredith, Meridian Lake, Merino, Mesa, Mesa Verde National Park, Milliken, Minturn, Molina, Montezuma, Montrose, Mount Crested Butte, Mountain Village, Mt Crested Butte, Nast, Naturita, Navajo State Park, New Castle, New Liberty, New Raymer, No Name, Norrie, Norwood, Nucla, Nunn, Oak Creek, Ohio City, Olathe, Old Snowmass, Ophir, Orchard, Orchard City, Otis, Ouray, Ovid, Oxford, Padroni, Pagoda, Pagosa Lakes, Pagosa Springs, Palisade, Pandora, Paoli, Paonia, Parachute, Paradox, Parlin, Parshall, Peetz, Phippsburg, Piedra, Piedre Park, Pierce, Pitkin, Placerville, Plateau City, Platteville, Pleasant View, Powderhorn, Purgatory, Rainbow, Rand, Rangely, Raymer, Red Cliff, Red Feather Lakes, Red Mountain, Redmesa, Redstone, Redvale, Rico, Ridgway, Rifle, Rio Blanco, Riverbend, Rocky Mountain National Park, Rogers Mesa, Ruedi, Rulison, Salida, San Acacio, Sanford, Sapinero, Sargents, Sawpit, Sedgwick, Seibert, Severance, Silt, Silver Creek, Silvercreek, Silverthorne, Silverton, Skyland, Slater, Slick Rock, Snowmass, Snowmass Village, Snyder, So Ute Indian Res, Somerset, Southern Ute Indian Reservat, Spring Creek, Squaw Point, State Farm Ins, Steamboat, Steamboat Springs, Sterling, Stoneham, Stoner, Sweetwater, Tabernash, Tamarron, Taylor Park, Teledyne Water Pik, Telluride, Tiffany, Timnath, Tincup, Toponas, Towaoc, Univ Of Northern Colorado, Ute Mountain Indian Reservat, Vail, Vallecito, Vernon, Virginia Dale, Vona, Walden, Weldona, Wellington, West Glenwood, West Vail, West Village, Western State College, White Pine, Whitewater, Wiggins, Willard, Windsor, Windy Point, Winter Park, Wolcott, Woodrow, Woody Creek, Wray, Yampa, Yellow Jacket, Yuma	CO