What is what area code is 854?

Area code 854 is a telephone area code in the North American Numbering Plan (NANP) for the state of South Carolina. It was assigned to provide numbering relief to the original area code 803, which covers most of the state. Area code 854 was implemented on March 14, 2015 to accommodate the increasing demand for telephone numbers in South Carolina. It serves cities such as Charleston, Columbia, and Greenville.