DENVER (CBS4) - The new area code for the Denver metro area is now in effect. The Colorado Public Utilities Commission says 983 is joining 303 and 720. The new area code is covering Denver and ...

DENVER (KDVR) — On Monday, March 3, Denver is celebrating 303 Day — a day that honors an area code that came to the Denver-Boulder area almost 80 years ago, but only started being celebrated recently.

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. DENVER (KDVR) — The Colorado Department of ...