Located in the Eastern (GMT -05:00) time zone. Area code 854 serves the state of South Carolina. This area code was assigned on December 16th, 2013. On October 19th, 2015 it went into service. 854 is a General Purpose Code. 854 service area does overlap with 843 area codes. Dialing pattern for local calls within the same NPA (area code) is 10D.