With new telephone numbers in greater demand, the Colorado Public Utilities Commission approved the implementation of the new 748 area code to overlay the existing 970 region. The 970 region includes but is not limited to Aspen, Breckenridge, Durango, Estes Park, Fort Collins, Glenwood Springs, Grand Junction, Greeley, Loveland, Silverthorne, Steamboat Springs, Vail, and many other smaller communities. The new 748 area code will serve the same geographic region currently served by the 970 area code.
While large-scale use of the new area code won’t begin until late 2026, starting on July 7, 2025, customers in the 970 area code overlay region may be assigned a number in the new 748 area code when they request new service or an additional line. The 748 area code will co-exist everywhere in this region with the 970 area code. Customers receiving a 748 area code will be required to dial the area code and phone number for all local calls, just as customers with numbers from the 970 area code do today…