| Area Code | 304 |
| State | West Virginia |
| Current Time in Area Code 304 | 304> EDT |
| Timezone | Eastern Daylight Time |
| Regional Market Area | Bluefield-Beckley-Oak Hill Area Charleston-Huntington Area Clarksburg-Weston Area Hagerstown Area Morgantown Area Parkersburg-Wheeling-Steubenville Area Shenandoah Valley Region |
| Metro Area(s) | Beckley, WV Charleston, WV Clarksburg, WV Cumberland, MD-WV Elkins, WV Fairmont, WV Hagerstown-Martinsburg, MD-WV Morgantown, WV Mount Gay-Shamrock, WV Parkersburg-Vienna, WV Point Pleasant, WV-OH Winchester, VA-WV |
| Population (2020) | 1793716 |
| Adjacent Area Codes | 220,227,234,240,276,301,330,540,606,681,724,740,826,878 |
| Overlay Area Codes | 681 |
| Charleston |
| Huntington |
| Morgantown |
| Parkersburg |