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 the summer, the 983 area code will be assigned to new phone numbers shortly. Those with 303 and 720 phone numbers will not experience changes.

The PUC previously announced the arrival of the 983 code in May 2021, saying that the new area code is expected to last 25 years.

Colorado is also gaining an eighth congressional seat in the 2022 elections, marking population growth in the centennial state.

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Area code 303 was established as Colorado’s area code in 1947. The Numbering Plan Area in 1988 created a geographic split, adding 719. In 1995, the 303 was split again, creating the 970 code. Finally, in 1998, 720 was implemented as an overlay of the 303.

The 303/720/983 area codes will cover central Colorado, mainly Denver, Arapahoe, Jefferson, Adams, Boulder and Douglas counties, along with some land just outside metro Denver.

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