CallataGuidesLocal business phone numbers in Colorado
83 Colorado cities and towns with their area codes and NANPA-assigned exchanges.
Colorado at a glance
Colorado has 6 geographic area codes in service (303, 719, 720, 748, 970, and 983), 3,055 assigned central office codes across 208 rate centers, and 107 carriers holding codes, according to NANPA. Each city page lists its area codes, prefixes and carriers.
Cities and towns
| Place | County | Population (2024) | Area codes | Exchanges |
|---|---|---|---|---|
| Denver | Denver County | 729,019 | 303, 720, 983 | 1,445 |
| Colorado Springs | El Paso County | 493,554 | 719 | 312 |
| Fort Collins | Larimer County | 170,924 | 970 | 96 |
| Greeley | Weld County | 114,363 | 970 | 62 |
| Pueblo | Pueblo County | 111,166 | 719 | 78 |
| Longmont | Boulder County | 99,818 | 303, 720, 983 | 64 |
| Loveland | Larimer County | 81,102 | 970 | 36 |
| Grand Junction | Mesa County | 70,554 | 970 | 57 |
| Windsor | Weld County | 41,734 | 970 | 10 |
| Montrose | Montrose County | 21,646 | 970 | 19 |
| Durango | La Plata County | 19,811 | 970 | 29 |
| Fruita | Mesa County | 13,912 | 970 | 6 |
| Berthoud | Larimer County | 13,648 | 970 | 8 |
| Steamboat Springs | Routt County | 13,620 | 970 | 14 |
| Sterling | Logan County | 13,114 | 970 | 12 |
| Fort Morgan | Morgan County | 11,835 | 970 | 11 |
| Rifle | Garfield County | 10,663 | 970 | 5 |
| Glenwood Springs | Garfield County | 10,311 | 970 | 21 |
| Fort Lupton | Weld County | 9,948 | 303, 720, 983 | 28 |
| Alamosa | Alamosa County | 9,906 | 719 | 13 |
| Delta | Delta County | 9,688 | 970 | 6 |
| Gypsum | Eagle County | 9,218 | 970 | 5 |
| Cortez | Montezuma County | 9,151 | 970 | 10 |
| Craig | Moffat County | 8,903 | 970 | 10 |
| Trinidad | Las Animas County | 8,183 | 719 | 11 |
| Lamar | Prowers County | 7,641 | 719 | 9 |
| Eagle | Eagle County | 7,349 | 970 | 5 |
| La Junta | Otero County | 6,986 | 719 | 9 |
| Gunnison | Gunnison County | 6,821 | 970 | 6 |
| Carbondale | Garfield County | 6,758 | 970 | 6 |
| Mead | Weld County | 6,735 | 970 | 4 |
| Aspen | Pitkin County | 6,556 | 970 | 17 |
| Salida | Chaffee County | 6,007 | 719 | 8 |
| Eaton | Weld County | 5,839 | 970 | 5 |
| Estes Park | Larimer County | 5,795 | 970 | 6 |
| Brush | Morgan County | 5,370 | 970 | 5 |
| New Castle | Garfield County | 4,894 | 970 | 4 |
| Breckenridge | Summit County | 4,892 | 970 | 5 |
| Vail | Eagle County | 4,466 | 970 | 24 |
| Monte Vista | Rio Grande County | 4,030 | 719 | 6 |
| Basalt | Eagle County | 4,001 | 970 | 6 |
| Bennett | Adams County | 3,916 | 303, 720 | 2 |
| Florence | Fremont County | 3,883 | 719 | 6 |
| Rocky Ford | Otero County | 3,781 | 719 | 4 |
| Silt | Garfield County | 3,727 | 970 | 3 |
| Yuma | Yuma County | 3,472 | 970 | 5 |
| Burlington | Kit Carson County | 3,171 | 719 | 6 |
| Buena Vista | Chaffee County | 3,127 | 719 | 7 |
| Walsenburg | Huerfano County | 3,035 | 719 | 7 |
| Bayfield | La Plata County | 2,923 | 970 | 4 |
| Platteville | Weld County | 2,904 | 970 | 4 |
| Leadville | Lake County | 2,624 | 719 | 5 |
| Palisade | Mesa County | 2,600 | 970 | 4 |
| Telluride | San Miguel County | 2,486 | 970 | 7 |
| Meeker | Rio Blanco County | 2,390 | 970 | 5 |
| Wray | Yuma County | 2,363 | 970 | 3 |
| Las Animas | Bent County | 2,361 | 719 | 4 |
| Granby | Grand County | 2,305 | 970 | 5 |
| La Salle | Weld County | 2,303 | 970 | 4 |
| Rangely | Rio Blanco County | 2,289 | 970 | 6 |
| Keenesburg | Weld County | 2,054 | 303, 720 | 12 |
| Limon | Lincoln County | 1,992 | 719 | 5 |
| Olathe | Montrose County | 1,970 | 970 | 4 |
| Hayden | Routt County | 1,920 | 970 | 5 |
| Center | Saguache County | 1,889 | 719 | 4 |
| Pagosa Springs | Archuleta County | 1,793 | 970 | 8 |
| Akron | Washington County | 1,745 | 970 | 4 |
| Crested Butte | Gunnison County | 1,643 | 970 | 4 |
| Deer Trail | Arapahoe County | 1,624 | 303, 720 | 5 |
| Hudson | Weld County | 1,617 | 303, 720 | 10 |
| Fraser | Grand County | 1,515 | 970 | 9 |
| Paonia | Delta County | 1,464 | 970 | 2 |
| Kremmling | Grand County | 1,436 | 970 | 4 |
| Del Norte | Rio Grande County | 1,410 | 719 | 4 |
| Parachute | Garfield County | 1,362 | 970 | 4 |
| Springfield | Baca County | 1,298 | 719 | 5 |
| Ridgway | Ouray County | 1,281 | 970 | 4 |
| Mancos | Montezuma County | 1,272 | 970 | 3 |
| Georgetown | Clear Creek County | 1,257 | 303, 720 | 13 |
| Julesburg | Sedgwick County | 1,223 | 970 | 3 |
| Fowler | Otero County | 1,203 | 719 | 4 |
| Cripple Creek | Teller County | 1,122 | 719 | 7 |
| Ordway | Crowley County | 1,067 | 719 | 3 |
Places whose NANPA rate center could be matched to a Census place, with at least two exchanges. Sources: NANPA; Census Vintage 2024 estimates.