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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 , Longmont , Broomfield , Aurora , and Castle Rock .
Area code 303 is the original area code assigned to the entire state when the first nationwide telephone numbering plan was created in 1947. Today it only serves the greater Denver Metropolitan Area. 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.
The original North American area codes were established by the American Telephone and Telegraph Company (AT&T) in 1947, after the demonstration of regional Operator Toll Dialing during the World War II period. The program had the goal of speeding the connecting times for long-distance calling by eliminating intermediary telephone operators.
The Denver–Aurora–Lakewood, CO Metropolitan Statistical Area; County 2010 Census 2020 Census Change City and County of Denver: 600,158 715,522
The City and County of Denver is the most densely populated Colorado county, with a population density of 4,674 residents per square mile (1,805/km 2) as of 2020, while Hinsdale County is the least densely populated county with a population density of 0.71 resident per square mile (0.27/km 2).
this was the first part of North America to have its code changed three times: from 213 to 714 1951: to 619 in 1982, and to 760 in 1997. was to have originally split off the portion of 760 serving San Diego County to a new 442 area code in late 2008/early 2009; that plan was cancelled. 2009: overlaid by 442. 761.
Cherry Creek, Denver. Coordinates: 39°43′15″N 104°56′59″W. The July 4th Arts Festival in the Cherry Creek commercial district (2009) Cherry Creek is a neighborhood in Denver, Colorado, in the United States. It has many newer residences mixed in with some of Denver's older homes.
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. The good news is that scam callers will often show up ...