The economy of the 423 area code region is diverse, with a strong emphasis on manufacturing, healthcare, logistics, and tourism. Major industries include automotive (Volkswagen, Navistar), chemicals (Eastman Chemical Company), healthcare systems (Ballad Health, Erlanger Health System), and tourism centered around the Great Smoky Mountains National Park and other natural attractions.
Area code 423 encompasses a significant portion of eastern Tennessee, spanning from the Tri-Cities region (Johnson City, Kingsport, Bristol) in the northeast to Chattanooga and Cleveland in the southeast. It borders area codes 615 (Nashville), 865 (Knoxville), 276 (Southwest Virginia), and 828 (Western North Carolina). The region covered by 423 includes the Great Smoky Mountains, Cherokee National Forest, and parts of the Appalachian Trail.
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Area code 423 covers the eastern part of Tennessee, including the cities of Chattanooga, Cleveland, and Johnson City. It borders area codes 615 (Nashville), 865 (Knoxville), 276 (Southwest Virginia), and 828 (Western North Carolina). The counties served by 423 include Hamilton, Bradley, Washington, Sullivan, Carter, and Unicoi, among others.
The population served by area code 423 is diverse, with a mix of urban and rural communities. Chattanooga, the largest city, has a population of around 180,000, while Johnson City and Kingsport have populations of around 70,000 each. The region has a strong manufacturing and healthcare industry presence, with major employers like Volkswagen, Eastman Chemical Company, and several healthcare systems.
Area code 423 observes Eastern Time (ET) and follows Daylight Saving Time (DST) regulations.
Area code 423 boasts several unique features, including the Tri-Cities region (Johnson City, Kingsport, Bristol), which straddles the Tennessee-Virginia border and is known for its rich music heritage and NASCAR racing. The region also encompasses the picturesque Great Smoky Mountains National Park, the most visited national park in the United States, and the historic Chattanooga Choo Choo Hotel, a former railroad terminal turned hotel and entertainment complex.
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