Located in the Eastern (GMT -05:00) time zone. Area code 681 serves the state of West Virginia. This area code was assigned on January 30th, 2008. On March 28th, 2009 it went into service. 681 is a General Purpose Code. 681 service area does overlap with 304 area codes. Dialing pattern for local calls within the same NPA (area code) is 10D.