<P> North American telephone area code 304 was established October 1947 as one of the original area codes, and serves all of the U.S. state of West Virginia . It was overlaid with area code 681, effective March 28, 2009 . </P> <P> Due to West Virginia's low population, it was one of the last remaining states with only one area code . However, in 2007, news reports indicated that West Virginia would soon need a new area code . This was largely due to the proliferation of cell phones and fax machines . </P>

Where is the 304 telephone area code located