| Area Code | 878 |
| State | Pennsylvania |
| Country | United State |
| Code Type | General Purpose Code |
| In Service | Yes |
| Timezone | Eastern Standard Time (EST) |
| Overlay Complex | 412/724/878 |
| Assignment Date | 15-DEC-99 |
| In Service Date | 17-AUG-01 |
| Area Code | 878 |
Area code 878 is located in Pennsylvania, within United State, serving the region's residents and businesses. The 878 area code was first assigned in 15-DEC-99 and has been in service since 17-AUG-01.
The 878 area code is part of an overlay complex, which includes the area codes 412/724/878. These codes all serve the same geographic region.
Area codes of Pennsylvania
Data Sources: NANPA Area Code, U.S. Area Code Map