COLORADO
| Area Code | Ratecenter | Tier |
|---|
| 303 | ALLNSPKLYN | 1 |
| 303 | AURORA | 1 |
| 303 | BRIGHTON | 1 |
| 303 | DECKERS | 1 |
| 303 | DENVER | 1 |
| 303 | DENVERSLVN | 1 |
| 303 | FORTLUPTON | 1 |
| 303 | GEORGETOWN | 1 |
| 303 | HUDSON | 1 |
| 303 | KEENESBURG | 1 |
| 303 | LONGMONT | 1 |
| 719 | AGUILAR | 3 |
| 719 | ALAMOSA | 3 |
| 719 | ANTONITO | 3 |
| 719 | BRANSON | 3 |
| 719 | BRISTOGRND | 3 |
| 719 | BUENAVISTA | 3 |
| 719 | BURLINGTON | 3 |
| 719 | CALHAN | 3 |
| 719 | CAMPO | 3 |
| 719 | CANON CITY | 3 |
| 719 | CENTER | 3 |
| 719 | CHERAW | 3 |
| 719 | CHEYENWLLS | 3 |
| 719 | COLORDOSPG | 1 |
| 719 | CREEDE | 3 |
| 719 | CRIPPLECRK | 3 |
| 719 | DEL NORTE | 3 |
| 719 | FAIRPLAY | 3 |
| 719 | FLORENCE | 3 |
| 719 | FOWLER | 3 |
| 719 | GARDNER | 3 |
| 719 | HOLLY | 3 |
| 719 | HOWARD | 3 |
| 719 | LA JARA | 3 |
| 719 | LA JUNTA | 3 |
| 719 | LA VETA | 3 |
| 719 | LAKEGEORGE | 3 |
| 719 | LAMAR | 3 |
| 719 | LAS ANIMAS | 3 |
| 719 | LEADVILLE | 3 |
| 719 | LIMON | 3 |
| 719 | MANASSA | 3 |
| 719 | MANZANOLA | 3 |
| 719 | MONTEVISTA | 3 |
| 719 | ORDWAY | 3 |
| 719 | PEYTON | 3 |
| 719 | PUEBLO | 3 |
| 719 | ROCKY FORD | 3 |
| 719 | SAGUACHE | 3 |
| 719 | SALIDA | 3 |
| 719 | SAN LUIS | 3 |
| 719 | SPRINGFLD | 3 |
| 719 | STRATTON | 3 |
| 719 | TRINIDAD | 3 |
| 719 | TWO BUTTES | 3 |
| 719 | WALSENBURG | 3 |
| 719 | WALSH | 3 |
| 719 | WESTCLIFFE | 3 |
| 719 | WESTON | 3 |
| 720 | ALLNSPKLYN | 1 |
| 720 | AURORA | 1 |
| 720 | BRIGHTON | 1 |
| 720 | DECKERS | 1 |
| 720 | DENVER | 1 |
| 720 | DENVERSLVN | 1 |
| 720 | FORTLUPTON | 1 |
| 720 | GEORGETOWN | 1 |
| 720 | HUDSON | 1 |
| 720 | KEENESBURG | 1 |
| 720 | LONGMONT | 1 |
| 970 | AKRON | 3 |
| 970 | ALLISON | 3 |
| 970 | ASPEN | 1 |
| 970 | BASALT | 1 |
| 970 | BAYFIELD | 3 |
| 970 | BERTHOUD | 1 |
| 970 | BRECKENRDG | 3 |
| 970 | BRUSH | 3 |
| 970 | CARBONDALE | 1 |
| 970 | COLLBRAN | 3 |
| 970 | CORTEZ | 3 |
| 970 | CRAIG | 3 |
| 970 | CRESTEDBTE | 3 |
| 970 | DE BEQUE | 1 |
| 970 | DELTA | 3 |
| 970 | DILLON | 3 |
| 970 | DINOSAUR | 3 |
| 970 | DOLORES | 3 |
| 970 | DOVE CREEK | 3 |
| 970 | DURANGO | 3 |
| 970 | EAGLE | 3 |
| 970 | EATON | 1 |
| 970 | EDWARDS | 3 |
| 970 | ESTES PARK | 1 |
| 970 | FORTMORGAN | 3 |
| 970 | FRASER | 3 |
| 970 | FRUITA | 1 |
| 970 | FT COLLINS | 1 |
| 970 | GILCREST | 1 |
| 970 | GLENWD SPG | 1 |
| 970 | GRANBY | 3 |
| 970 | GRAND JCT | 1 |
| 970 | GRAND LAKE | 3 |
| 970 | GREELEY | 1 |
| 970 | GUNNISON | 1 |
| 970 | GYPSUM | 3 |
| 970 | HAYDEN | 3 |
| 970 | HILLROSE | 3 |
| 970 | HTSLPHRSPG | 3 |
| 970 | IGNACIO | 3 |
| 970 | JOHNSTMLKN | 1 |
| 970 | JULESBURG | 3 |
| 970 | KREMMLING | 3 |
| 970 | LA SALLE | 1 |
| 970 | LAKE CITY | 3 |
| 970 | LOVELAND | 1 |
| 970 | MANCOS | 3 |
| 970 | MARVEL | 3 |
| 970 | MAYBELL | 3 |
| 970 | MCCOY | 3 |
| 970 | MEAD | 1 |
| 970 | MEEKER | 3 |
| 970 | MESA | 3 |
| 970 | MONTROSE | 1 |
| 970 | NEW CASTLE | 3 |
| 970 | NORWOOD | 3 |
| 970 | OAK CREEK | 3 |
| 970 | OLATHE | 1 |
| 970 | OTIS | 3 |
| 970 | OURAY | 1 |
| 970 | PAGOSA SPG | 3 |
| 970 | PALISADE | 1 |
| 970 | PARACHUTE | 1 |
| 970 | PLATTEVL | 1 |
| 970 | RANGELY | 3 |
| 970 | RDFTHERLKS | 3 |
| 970 | RIDGWAY | 1 |
| 970 | RIFLE | 3 |
| 970 | SILT | 3 |
| 970 | SILVERTON | 3 |
| 970 | SO LARAMIE | 3 |
| 970 | SOCHEYENNE | 3 |
| 970 | STEAMBOSPG | 3 |
| 970 | STERLING | 3 |
| 970 | TELLURIDE | 1 |
| 970 | VAIL | 3 |
| 970 | WALDEN | 3 |
| 970 | WELDONA | 3 |
| 970 | WINDSOR | 1 |
| 970 | WRAY | 3 |
| 970 | YAMPA | 3 |
| 970 | YUMA | 3 |