Area Code Overview

Area code 748 is a geographic telephone area code in Colorado that went into service on July 7, 2025. The geographic regions covered by this area code overlay has a population of approximately 1,289,348.

Overlay and Dialing Rules

Area Code: 748
State: Colorado
Type: General Purpose Code
In Service Date: July 7, 2025
Overlay Complex: 748/970
Local Dialing Plan: This area does require you to dial the area code when calling locally.

Estimated Number of Assigned Phone Numbers in Area Code 748

Estimated Service-Type Mix of Assigned Phone Numbers in Area Code 748

No usage distribution is available for this area code.

Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Area Code 748

Estimated assigned wireless phone numbers: 0

Numbers may later be ported to another carrier, but this chart reflects original number assignment, not current subscriber share.

No wireless provider distribution is available for this area code.

Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Area Code 748

Estimated assigned wireline and VoIP phone numbers: 0

No wireline or VoIP provider distribution is available for this area code.

Other / Unclassified Assigned Numbering in Area Code 748

Estimated assigned other or unclassified phone numbers: 0

No other or unclassified provider distribution is available for this area code.

Cities and Towns in Area Code 748

Akron, Colorado Allison, Colorado Anton, Colorado Aspen, Colorado Basalt, Colorado Bayfield, Colorado Berthoud, Colorado Breckenridge, Colorado Briggsdale, Colorado Brush, Colorado Carbondale, Colorado Cedaredge, Colorado Cimarron, Colorado Collbran, Colorado Cope, Colorado Cortez, Colorado Craig, Colorado Crawford, Colorado Crested Butte, Colorado Crook, Colorado De Beque, Colorado Delta, Colorado Dillon, Colorado Dinosaur, Colorado Dolores, Colorado Dove Creek, Colorado Durango, Colorado Eagle, Colorado Eaton, Colorado Eckert, Colorado Eckley, Colorado Edwards, Colorado Estes Park, Colorado Fleming, Colorado Fort Collins, Colorado Fort Morgan, Colorado Fraser, Colorado Fruita, Colorado Gateway, Colorado Gilcrest, Colorado Glenwood Springs, Colorado Granby, Colorado Grand Junction, Colorado Grand Lake, Colorado Greeley, Colorado Grover, Colorado Gunnison, Colorado Gypsum, Colorado Haxtun, Colorado Hayden, Colorado Hillrose, Colorado Holyoke, Colorado Hotchkiss, Colorado Idalia, Colorado Ignacio, Colorado Joes, Colorado Johnstown, Colorado Julesburg, Colorado Kirk, Colorado Kremmling, Colorado La Salle, Colorado Lake City, Colorado Loveland, Colorado Mancos, Colorado Marvel, Colorado Maybell, Colorado Mc Coy, Colorado Mead, Colorado Meeker, Colorado Mesa, Colorado Montrose, Colorado Naturita, Colorado New Castle, Colorado New Raymer, Colorado Norwood, Colorado Nucla, Colorado Nunn, Colorado Oak Creek, Colorado Olathe, Colorado Otis, Colorado Ouray, Colorado Pagosa Springs, Colorado Palisade, Colorado Paonia, Colorado Parachute, Colorado Paradox, Colorado Peetz, Colorado Platteville, Colorado Pleasant View, Colorado Rangely, Colorado Red Feather Lakes, Colorado Rico, Colorado Ridgway, Colorado Rifle, Colorado Silt, Colorado Silverton, Colorado Somerset, Colorado Steamboat Springs, Colorado Sterling, Colorado Stoneham, Colorado Telluride, Colorado Vail, Colorado Vona, Colorado Walden, Colorado Weldona, Colorado Wiggins, Colorado Willard, Colorado Windsor, Colorado Woodrow, Colorado Wray, Colorado Yampa, Colorado Yuma, Colorado

These geographic regions are also served by area code 970.

How These Figures Were Built

These figures are estimates based on public phone-number assignment records. They are meant to show the likely mix of assigned phone numbers associated with area code 748, not live customer counts.

Some providers may have assigned phone numbers tied to this area code even if they do not actively market or sell service locally. These figures reflect public number-assignment records, not confirmed local service availability.

They also do not reflect number portability at the individual phone-number level, so some numbers may now be used on a different network or by a different provider than the original assignment records suggest.

Population data and locality matching provided by GeoNames.

Last refreshed: April 15, 2026 6:22 pm