The new area code is covering Denver and surrounding cities including Aurora, Boulder, Brighton, Castle Rock, Englewood, Lakewood, Littleton, Thornton and Westminster.

Look out, there's a new area code in town. The Colorado Public Utilities Commission says 983 will be joining 303 and 720 starting in exactly one month (on June 17, 2022).

Colorado is no longer known as the 303 state. In 2026, a new area code is coming for the northern and western parts of the Centennial State.

The 303 and 720 area codes cover the north-central portion of Colorado -- which includes the Denver metro area. The 720 area code was introduced in 1998 to Denver to provide number relief to 303.

The new 983 area code will be coming to the Denver area as soon as June, the Colorado Public Utilities Commission said. As the 303 and 720 area codes are expected to run out by the beginning of ...