412 Area Code — Pennsylvania
412 is a North American Numbering Plan area code for Pennsylvania, the United States. It covers about 1,296,366 people in 55 towns and 135 ZIP codes, including Pittsburgh, Greensburg and Butler.
| Field | Value |
|---|---|
| Area code | 412 |
| Country | United States (+1) |
| State / province | Pennsylvania |
| Type | Shares its towns with 878 |
| Time zone | Eastern |
| Population covered | 1,296,366 |
| Towns covered | 55 |
| ZIP codes | 135 |
| Approx. centre | 40.440, -79.898 |
Where area code 412 is used
Area code 412 is assigned to Pennsylvania, the United States, inside the North American Numbering Plan. Numbers in the code are written (412) NXX-XXXX at home and +1 412 NXX-XXXX when dialled from outside Canada and the United States. Since the NANP moved to 10-digit dialling you must always include the area code, even for a local call.
Other area codes in this footprint: 878. They serve towns in the same territory, so a single street can contain numbers from more than one code. That is normal in the NANP and does not change how you dial.
Towns and cities in area code 412
The 55 towns below are the largest in the 412 footprint, ranked by population. Every one of them links to its own page with the full list of area codes and ZIP codes for that town.
| Town | County | Population | ZIP codes |
|---|---|---|---|
| Pittsburgh | Allegheny County | 689,610 | 75 |
| Greensburg | Westmoreland County | 56,425 | 3 |
| Butler | Butler County | 54,821 | 3 |
| Washington | Washington County | 50,348 | 1 |
| Coraopolis | Allegheny County | 42,799 | 1 |
| Indiana | Indiana County | 34,370 | 2 |
| Bethel Park | Allegheny County | 30,344 | 1 |
| Uniontown | Fayette County | 29,942 | 1 |
| Beaver Falls | Beaver County | 28,542 | 1 |
| Monroeville | Allegheny County | 28,332 | 1 |
| Mc Kees Rocks | Allegheny County | 22,623 | 1 |
| West Mifflin | Allegheny County | 18,818 | 2 |
Counties covered
| County | ZIP codes |
|---|---|
| Allegheny County | 100 |
| Westmoreland County | 9 |
| Fayette County | 6 |
| Indiana County | 6 |
| Butler County | 6 |
| Beaver County | 4 |
| Washington County | 2 |
| Armstrong County | 2 |
Other area codes serving the same towns
Nearby area codes
How to dial area code 412
- Within North America: 412 + 7-digit number (412-NXX-XXXX). The leading 1 is optional on a mobile phone and required on most landlines for long-distance.
- From abroad: your country's international prefix, then 1, then 412, then the 7-digit number — for example 00 1 412 NXX-XXXX from most of Europe.
Frequently asked questions
What area code is 412?
412 is a North American Numbering Plan area code assigned to Pennsylvania, the United States. It covers about 1,296,366 people in 55 towns.
Is 412 a US or Canadian area code?
412 is a United States area code. Canada and the United States share the +1 country code, so both are part of the same numbering plan.
What time zone is area code 412 in?
Area code 412 is in the Eastern time zone.
Do I have to dial 10 digits?
Yes. Every NANP call now requires the area code plus the seven-digit number, even for a local call.