Introduction to Area Code 748

Area Code 748 is a new telephone area code that will be introduced in 2026 to serve the northern and western regions of Colorado. This area code will be an overlay for the existing 970 area code, meaning both area codes will serve the same geographic region. Business owners in this region will need to dial 10 digits for local calls within and between these area codes. The introduction of Area Code 748 is a response to the growing demand for new phone numbers in this part of Colorado. This change will impact several significant cities and towns, including Fort Collins, Steamboat Springs, Grand Junction, Aspen, Durango, and Sterling.