With new telephone numbers in the greater Denver area in high demand, the Colorado Public Utilities Commission approved the implementation of the new 983 area code to overlay the existing 303/720 region. Starting on June 17, 2022, customers in the 303/720 area code overlay region may be assigned a number in the new 983 area code when they request new service or an additional line.
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The 983 area code will co-exist everywhere in this region with the 303 and 720 area codes. Customers receiving a 983 area code will be required to dial the area code and phone number for all local calls, just as customers with numbers from the 303 and 720 area codes do today
Key facts: Telephone numbers, including current area code, will not change. The price of a call, coverage area, or other rates and services will not change due to the overlay. What is a local call now will remain a local call. Customers in the overlay region will continue to dial 10 digits for local calls within and between the overlay area codes, and 1+10 digits for long distance calls. Customers can still dial just three digits to reach 911 including 211, 311, 411, 511, 611, 711 or 811 if those are currently available in their community.
Customers should continue to identify their telephone number as a 10-digit number (3-digit area code + 7-digit telephone number), and include the area code when giving the number to friends, family, business associates and customers, etc. Customers should ensure that all services, automatic dialing equipment, or other types of equipment recognize the new 983 area code as a valid area code and should continue to store or program telephone numbers as 10-digit numbers.
For more information, please contact your local telephone service provider or visit the Colorado Public Utilities Commission website at: https://puc.colorado.gov/telecommunications.