Fairmont City Area Code List
| Area Codes | Country | State | City | Time Zone | Operating |
|---|---|---|---|---|---|
| 304 | US | West Virginia - VA | Fairmont | Eastern | Details |
| 402 | US | Nebraska - NE | Fairmont | Central | Details |
| 507 | US | Minnesota - MN | Fairmont | Central | Details |
| 580 | US | Oklahoma - OK | Fairmont | Central | Details |
| 681 | US | West Virginia - VA | Fairmont | Eastern | Details |
| 910 | US | North Carolina - NC | Fairmont | Eastern | Details |