Area code 748
Area code 748 is a Colorado area code, in service since July 7, 2025.
It was added as an overlay on 970: both codes serve the same area, so neighbors can have numbers in either one.
Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
It is in the Mountain Time zone.
Map
Main cities in area code 748
Overlays and neighboring area codes
Overlay, serving the same area: 970.
Neighboring area codes: 505, 575, 308, 785, 620, 435, 580, 806, 307, 928, 719, 303.
Counties in area code 748
- Weld County
- Larimer County
- Mesa County
- Eagle County
- Gunnison County
- Routt County
- Grand County
- Logan County
- Montrose County
- Montezuma County
- Morgan County
- Pitkin County
- Yuma County
- Delta County
- Garfield County
- Washington County
- Dolores County
- La Plata County
- Moffat County
- San Miguel County
- Jackson County
- Phillips County
- Summit County
- Archuleta County
- Rio Blanco County
- Sedgwick County
- Gilpin County
- Ouray County
- Hinsdale County
- San Juan County
Towns in area code 748
- Fort Collins
- Grand Junction
- Greeley
- Longmont
- Durango
- Loveland
- Montrose
- Steamboat Springs
- Aspen
- Craig
- Crested Butte
- Dinosaur
- Estes Park
- Glenwood Springs
- Gunnison
- Pagosa Springs
- Silverthorne
- Vail
- Windsor
- Akron
- Almont
- Amherst
- Anton
- Arboles
- Atwood
- Ault
- Austin
- Avon
- Basalt
- Battlement Mesa
- Bayfield
- Bedrock
- Bellvue
- Berthoud
- Black Hawk
- Bond
- Breckenridge
- Briggsdale
- Brush
- Burns
- Cahone
- Carbondale
- Carr
- Cedaredge
- Chromo
- Cimarron
- Clark
- Clifton
- Coalmont
- Collbran
- Cope
- Cortez
- Cory
- Cowdrey
- Crawford
- Crook
- De Beque
- Delta
- Dillon
- Dolores
And 176 more towns: every town in Colorado.