| District of Pennsylvania area codes: 412 | |
|---|---|
| Country | United States |
| State/Province | Pennsylvania |
| Major City | Pittsburgh |
| Time Zone | Eastern (UTC-05:00) |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 412-415 | Allegheny | Pittsburgh, PA | Teleport Communications America |
| 412-416 | Allegheny | Pittsburgh, PA | Xo Communications Services Inc |
| 412-417 | Allegheny | Pittsburgh, PA | New Cingular Wireless PCS - IL |
| 412-418 | Allegheny | Pittsburgh, PA | New Cingular Wireless PCS - IL |
| 412-419 | Allegheny | Pittsburgh, PA | 365 Wireless |
| 412-420 | Allegheny | Pittsburgh, PA | Verizon Pennsylvania |
| 412-421 | Allegheny | Pittsburgh, PA | Verizon Pennsylvania |
| 412-422 | Allegheny | Pittsburgh, PA | Verizon Pennsylvania |
| 412-423 | Allegheny | Oakmont, PA | Consolidated Communications Enterprise Services-pa |
| 412-424 | Allegheny | Coraopolis, PA | Choice One Communications |
| 412-425 | Allegheny | Pittsburgh, PA | Sprint Spectrum L.p. |
| 412-426 | Allegheny | Pittsburgh, PA | Intermedia Communications Inc. |
| 412-427 | Allegheny | Pittsburgh, PA | New Cingular Wireless PCS - IL |
| 412-428 | Allegheny | Carnegie, PA | Allegiance Telecom Of Pennsylvania |
| 412-429 | Allegheny | Carnegie, PA | Verizon Pennsylvania |
| 412-430 | Allegheny | Pittsburgh, PA | Peerless Network Of Pennsylvania |
| 412-431 | Allegheny | Pittsburgh, PA | Verizon Pennsylvania |
| 412-432 | Allegheny | Pittsburgh, PA | Verizon Pennsylvania |
| 412-433 | Allegheny | Pittsburgh, PA | Verizon Pennsylvania |
| 412-434 | Allegheny | Pittsburgh, PA | Verizon Pennsylvania |
There are 673 prefixes, In the code area, the major cities are Bethel Park, PA;Mccandless Township, PA;Mckeesport. The major city is Pittsburgh.