West Virginia is currently using two area codes. West Virginia utilizes one area code overlay plan, which is often called an overlay complex.
Area code 304 originally covered all of West Virginia when it was established in 1947. In 2009 area code 681 was established as an overlay of area code 304. Today the two area codes cover the entire state of West Virginia.
Changes and History of West Virginia Area Codes:
Area code 304 was put into service. In 2009 area code 304 was overlaid with area code 681.
Area code 681 was put into service. Area code 681 is an overlay of area code 304.