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Clickable map of Colorado area codes in blue (with bordering states). [1] The U.S. state of Colorado is served by five telephone area codes of the North American Numbering Plan (NANP). Area code 303 is the original area code assigned to the entire state when the first nationwide telephone numbering plan was created in 1947.
Area code 303 was one of the original North American area codes of 1947, and originally served the entire state of Colorado. It remained the state's sole area code for 40 years. Colorado's explosive growth in the second half of the 20th century, particularly in the Denver/Boulder area, made it a certainty that Colorado would need another area code.
Brighton is the county seat of Adams County and a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area and the Front Range Urban Corridor. [6] The city population was 40,083 at the 2020 United States Census with 39,718 residing in Adams County and 365 residing in Weld County.
The county seat is Brighton, and the largest city is Thornton. [3] The county is named for Alva Adams, an early Governor of the State of Colorado in 1887–1889. [1] Adams County is part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area.
Quick Take: List of Scam Area Codes. More than 300 area codes exist in the United States alone which is a target-rich environment for phone scammers.
Henderson, formerly known as Henderson Island, is an unincorporated community and a U.S. Post Office in Adams County, Colorado, United States. Henderson has the ZIP Code 80640. [2] Portions of the Henderson area have been annexed by Commerce City, Brighton, and Thornton. A post office called Henderson has been in operation since 1894. [3]
To find out the 25 poorest and richest area codes, GOBankingRates used the 2015 Census Community Survey, the most recent data available, to rank cities across the nation in order of mean household ...
Area code(s) Both 303 and 720: FIPS code: ... State Highway 7 leads east from Lafayette to Brighton and west to Boulder. ... Representative Women of Colorado, 1914.