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Area codes 720 and 983 are overlay codes for today's 303 numbering plan area (NPA). Area code 719 serves Colorado Springs and southeastern Colorado. Area code 970 serves northern and western Colorado. Area code 748 will be introduced to the northern and western areas of Colorado in 2026. [2]
Clickable map of Colorado area codes in blue (with bordering states). [1] Area codes 303, 720 and 983 are telephone area codes in the North American Numbering Plan for the north-central portion of the U.S. state of Colorado. The numbering plan area comprises Denver and Boulder, as well as their surrounding suburbs, including Lakewood, Littleton ...
Boulder is a home rule city in and the county seat of Boulder County, Colorado, United States. [1] With a population of 108,250 at the 2020 census, it is the most-populous city in the county and the 12th-most populous city in Colorado. [6] Boulder is the principal city of the Boulder metropolitan statistical area, which had 330,758 residents in ...
Sep 1, 2017 · Boulder, CO Area Codes: List, Map, and Phone Lookup. Area Codes >. Colorado >. Boulder. The city of Boulder is in the state of Colorado. It has the following active area codes: 720.
Colorado currently utilizes 5 area codes. When first established by AT&T and the Bell System in 1947, 303 covered the entire state of Colorado. The most recently added was 983 in 2022 as an overlay to 303.
There are 4 active area codes in the state of Colorado. Each of these area codes are listed below. There are two lists that Wirefly provides for the area codes in Colorado. The first table below shows the most populated cities in Colorado with the area codes listed next to them. The next table shows the all the Colorado state area codes by ...
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Lookup area code information for BOULDER, CO. Get the NPA NXX (area code and prefix) as well as much more data for BOULDER, CO.
