Area code and exchange code is assigned to every constituent of city in the United States. The area and exchange codes of the telephone can be used to find information about a region. Area code 681 and exchange code 209 is assigned to CLARKSBURG. The latitude and longitude corresponding to 39.633074333165 and -79.957699135265 can be used to find an area on the map. Cellco Partnership dba Verizon Wireless - WVoperates most of the land lines in United States.