| District of Pennsylvania area codes: 878 | |
|---|---|
| Country | United States |
| State/Province | Pennsylvania |
| Major City | Pittsburgh |
| Time Zone | Eastern |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 878-201 | Beaver | Rochester, PA | Peerless Network Of Pennsylvania |
| 878-202 | Mercer | Sharon, PA | Time Warner Cable Information Svcs (pa), Pa |
| 878-222 | Lawrence | New Wilmington, PA | Voxbeam Telecommunications Inc. |
| 878-258 | Armstrong | Freeport, PA | Salsgiver Telecom |
| 878-295 | Westmoreland | Greensburg, PA | Aerial Communications |
| 878-302 | Allegheny | Pittsburgh, PA | Peerless Network Of Pennsylvania |
| 878-332 | Allegheny | Wexford, PA | Level 3 Communications |
| 878-422 | Armstrong | Freeport, PA | Salsgiver Telecom |
| 878-444 | Indiana | Homer City, PA | Voxbeam Telecommunications Inc. |
| 878-777 | Westmoreland | Derry, PA | Voxbeam Telecommunications Inc. |
| 878-888 | Indiana | Aultman, PA | Voxbeam Telecommunications Inc. |
| 878-555 | Used in movie | Rochester, PA | Used in movie |
| 1 | ›› |
There are 12 prefixes, In the code area, the major cities are Bethel Park, PA;Mccandless Township, PA;Mckeesport. The major city is Pittsburgh.