Find any 423- phone number in Tennessee
The 423 area code encompasses a large geographic region located in East Tennessee, which includes the cities of Chattanooga, Kingsport, Knoxville, and Johnson City. This area code was created in 1954 as part of the North American Numbering Plan (NANP), which is responsible for creating and assigning all telephone numbers in the United States and its territories. This system was established in 1947 to make telephone service more efficient, with the primary objective of allowing area codes to be reused across different geographic regions.
As part of the Tennessee region, area code 423 includes several sites of historical and natural significance, such as the Great Smokey Mountains National Park, the Appalachian Mountains, and the Tennessee Valley Authority. This area code is also home to a number of reputable universities such as the University of Tennessee at Chattanooga and East Tennessee State University. It is also home to an array of innovative companies, including several major technology-based startups. All of these unique features make area code 423 a unique and culturally vibrant region of Tennessee.