A- Aguilar, Akron, Alamosa, Arvada, Aspen, Ault, Aurora, Avon
B- Bailey, Basalt, Bayfield, Bennett, Berthoud, Boulder, Breckenridge, Brighton, Broomfield, Brush, Buena Vista, Burlington, Byers
C- Canon City, Carbondale, Cascade, Castle Rock, Cedaredge, Center, Cheyenne Wells, Clifton, Collbran, Colorado City, Colorado Springs, Commerce City, Conifer, Cortez, Craig, Crawford, Creede, Crested Butte, Crestone, Cripple Creek, Crook
D- Deer Trail, Del Norte, Delta, Denver, Dinosaur, Dolores, Dove Creek, Durango
E- Eads, Eagle, Eaton, Elizabeth, Englewood, Estes Park, Evergreen
F- Fairplay, Flagler, Fleming, Florence, Florissant, Fort Collins, Fort Lyon, Fort Morgan, Fountain, Fowler, Fraser, Frederick, Frisco, Fruita
G- Gateway, Georgetown, Glenwood Springs, Golden, Granby, Grand Junction, Grand Lake, Greeley, Grover, Gunnison, Gypsum
H- Hartsel, Haxtun, Hayden, Hesperus, Holly, Holyoke, Hot Sulphur Springs, Hotchkiss, Hudson, Hugo
I- Idaho Springs, Ignacio
J- Johnstown, Julesburg
K- Kiowa, Kremmling
L- La Jara, La Junta, La Veta, Lafayette, Lake City, Lake George, Lakewood, Lamar, Las Animas, Leadville, Limon, Littleton, Longmont, Louisville, Louviers, Loveland, Lyons
M- Mancos, Manitou Springs, Maybell, Meeker, Monte Vista, Montrose, Monument
N- Naturita, Nederland, New Castle, Norwood, Nucla
O- Oak Creek, Olney Springs, Ordway, Ouray
P- Pagosa Springs, Palisade, Palmer Lake, Paonia, Parachute, Paradox, Parker, Penrose, Pine, Platteville, Pueblo
R- Rangely, Rico, Ridgway, Rifle, Rocky Ford
S- Saguache, Salida, San Luis, Silt, Silverthorne, Silverton, Simla, Springfield, Steamboat Springs, Sterling, Strasburg, Stratton
T- Telluride, Thornton, Toponas, Trinidad
U- U S A F Academy
V- Vail, Victor
W- Walden, Walsenburg, Wellington, Westcliffe, Westminster, Windsor, Woodland Park, Wray
Y- Yampa, Yuma