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May 1, 2024 · 303 Area Code. Download Area Code Database. Load 303 Area Code Map. Important 303 Area Code Information. Area Code 303 is located in Colorado. It covers 26 cities, including Denver, Aurora, Thornton, Arvada, and Longmont. It also covers 9 counties, including Denver County, Jefferson County, Arapahoe County, Adams County, and Weld County.
The 303 Area Code is located in the state of Colorado. Area Code 303 is one of the 269 three-digit telephone area codes in the USA. It covers roughly 7,838,099 unique phone numbers and 1,828,375 individuals near the cities of Denver, Aurora, and Littleton.
3 days ago · Area code 303 is located in Central Colorado and includes Denver. View the 303 area code map, major cities, location, timezone and more on TeraCodes.com.
Jun 22, 2023 · It stretches from the northern border of Denver to the southern border of Castle Rock, and from the eastern edge of Aurora to the western boundary of Golden. The area code covers a total of 10 counties, including Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver, Douglas, Gilpin, Jefferson, and Weld.
Area Code 303 is in Colorado. Other Colorado Area Codes. 303, 719, 720, 748, 970, 983. Colorado Area Code Overlays. 303 and 720 and 983. Area Code 303 History: 01/01/1947. Area code 303 was officially put into service. In 1988 Area code 303 was split to form area code 719. In 1995 area code 303 was split to form area code 970.
Area code 303 is an area code that is part of Colorado. It is one of the earliest area codes ever made in 1947. It used to cover the entire state of Colorado, but after it was split by 719 in 1988 [1] and 970 in 1995, [2] it now covers the middle area of the state, specifically in the Denver and Boulder area. It was overlaid by 720 in 1998. [3] .
The area code 303 is located in Aurora, Colorado. The telephone area code "303" is the designated code for Aurora, Colorado. Located in the heart of the state, this area code covers a wide range of essential services and bustling communities.
