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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.
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. Today, 303 is the most populated with an estimated 2.9 million of the state's 5 million residents.
* Population: 4,301,261 * White Population: 3,560,005 * Black Population: 165,063 * Hispanic Population: 735,601 * Asian Population: 95,213 * Hawaiian Population:
Wiggins 970. Willard 970. Windsor 970. Woodrow 970. Wray 970. Yampa 970. Yuma 970. Get a full list of Colorado area codes. Check out the area’s map, the current time, and area codes listed by city.
- 303 Area Code
- 720 Area Code
- 719 Area Code
The 303 area code is used primarily for Denver and its surrounding suburbs. It was one of the first 86 original numbering plan areas (NPAs) created in 1947 when AT&T introduced direct distance dialing to every major city in America. This code originally served all of Colorado until 1995 when it became necessary to add a second code due to populatio...
The 720 number was then assigned as an overlay for areas within 303 which allowed customers from both region codes access to local calling services without having to dial long-distance numbers or incur additional fees from their carrier providers. It was created in 1998 as part of a three-way split with 303 and 970. This area code covers most of th...
The 719 area code is located in the state of Colorado and covers Colorado Springs, Pueblo, Canon City, Lamar, La Junta and Alamosa. It was one of the original area codes established in 1947 when the North American Numbering Plan (NANP) went into effect. The primary purpose of this area code was to provide local telephone service for customers livin...
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, while area codes 720 and 983 were added (in 1998 and 2022 respectively) to form an overlay complex for the area, meaning that the same ...
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Country dial and city area codes for Colorado Dial code widgets for Colorado ... Area Code: Dialing Code: Arvada: 720 +1 720 : Aspen: 970 +1 970 : Aurora: 630 +1 630 ...
