| 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 |
|---|---|---|---|
| 412-329 | Allegheny | Pittsburgh, PA | Us Lec Of Pennsylvania |
| 412-330 | Allegheny | Pittsburgh, PA | Verizon Pennsylvania |
| 412-331 | Allegheny | Pittsburgh, PA | Verizon Pennsylvania |
| 412-334 | Allegheny | Pittsburgh, PA | Cellco Partnership DBA Verizon Wireless |
| 412-335 | Allegheny | Pittsburgh, PA | Cellco Partnership DBA Verizon Wireless |
| 412-336 | Allegheny | Pittsburgh, PA | Global Crossing Local Services-pa |
| 412-337 | Allegheny | Pittsburgh, PA | Cellco Partnership DBA Verizon Wireless |
| 412-338 | Allegheny | Pittsburgh, PA | Verizon Pennsylvania |
| 412-339 | Allegheny | Pittsburgh, PA | Level 3 Communications |
| 412-340 | Allegheny | Pittsburgh, PA | Schuylkill Mobile Fone |
| 412-341 | Allegheny | Pittsburgh, PA | Verizon Pennsylvania |
| 412-342 | Allegheny | Pittsburgh, PA | Choice One Communications |
| 412-343 | Allegheny | Pittsburgh, PA | Verizon Pennsylvania |
| 412-344 | Allegheny | Pittsburgh, PA | Verizon Pennsylvania |
| 412-345 | Allegheny | Pittsburgh, PA | Choice One Communications |
| 412-346 | Allegheny | Pittsburgh, PA | Choice One Communications |
| 412-347 | Allegheny | Bethel Park, PA | Choice One Communications |
| 412-348 | Allegheny | Pittsburgh, PA | Choice One Communications |
| 412-349 | Allegheny | Turtle Creek, PA | Choice One Communications |
| 412-350 | 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.