Pennsylvania Area Codes
15 active area codes · Philadelphia · Population around 13,045,848
Pennsylvania has 15 active area codes, serving cities like Philadelphia, Pittsburgh, and Allentown. Of those, 15 are overlays covering ground another code already covers, which is why local calls there use all ten digits. The newest, 835, has been in service since September 2, 2022. Each code below links to its cities, carriers, timezone, and coverage map.
Pennsylvania Area Code Map
What area codes does Pennsylvania have?
- 215OverlayPhiladelphiaEastern Time (ET) · 72 cities · 2,660,308
- 223OverlayLancasterEastern Time (ET) · 282 cities · 2,086,402
- 267OverlayPhiladelphiaEastern Time (ET) · 72 cities · 2,660,308
- 272OverlayScrantonEastern Time (ET) · 372 cities · 1,555,371
- 412OverlayPittsburghEastern Time (ET) · 92 cities · 1,137,249
- 445OverlayPhiladelphiaEastern Time (ET) · 72 cities · 2,660,308
- 484OverlayAllentownEastern Time (ET) · 244 cities · 2,721,665
- 570OverlayScrantonEastern Time (ET) · 372 cities · 1,555,371
- 582OverlayErieEastern Time (ET) · 357 cities · 1,301,509
- 610OverlayAllentownEastern Time (ET) · 244 cities · 2,721,665
- 717OverlayLancasterEastern Time (ET) · 282 cities · 2,086,402
- 724OverlayNew CastleEastern Time (ET) · 367 cities · 1,540,196
- 814OverlayErieEastern Time (ET) · 357 cities · 1,301,509
- 835OverlayAllentownEastern Time (ET) · 244 cities · 2,721,665
- 878OverlayPittsburghEastern Time (ET) · 450 cities · 2,677,445
More than one of these codes covers 67 of the 67 counties in Pennsylvania, and one county is covered by 8 of them. Each card counts the people inside that code's own boundary at the 2020 census. Adding all 15 gives 31,387,373, against the 13,002,700 the same census counts in those counties, because 18,384,673 residents fall inside more than one code.
Which cities are the largest in Pennsylvania?
| # | City | Area Codes | Population |
|---|---|---|---|
| 1 | Philadelphia | 215 / 267 / 445 | 1,573,916 |
| 2 | Pittsburgh | 412 / 878 | 307,668 |
| 3 | Allentown | 484 / 610 / 835 | 127,138 |
| 4 | Reading | 484 / 610 / 835 | 96,000 |
| 5 | Erie | 582 / 814 | 92,940 |
| 6 | Bethlehem | 484 / 610 / 835 | 79,453 |
| 7 | Scranton | 272 / 570 | 75,905 |
| 8 | Lancaster | 223 / 717 | 58,441 |
| 9 | Levittown | 215 / 267 / 445 | 52,983 |
| 10 | Harrisburg | 223 / 717 | 50,649 |
How many phone prefixes does Pennsylvania use?
The area codes in Pennsylvania hold 7,722 assigned prefixes between them, listed under 136 distinct carrier names. A prefix is the three digits after the area code, and NANPA assigns each one to a single carrier.
Sources: City populations – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). State populations – the same program, Vintage 2025 (CO-EST2025-ALLDATA). Area-code footprint and county populations – 2020 Census Centers of Population, mapped against NANP area code boundaries. The share of each city inside a code is measured the same way, against Census place boundaries from the Census Bureau's TIGERweb service. Area code assignments – NANPA CO Code data. See our data methodology.
Frequently Asked Questions
How many area codes does Pennsylvania have?
Pennsylvania has 15 active area codes: 215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878.
What is the main area code for Pennsylvania?
Of the 15 area codes in Pennsylvania, 215 is the oldest one still serving Philadelphia, its largest city. 215 has been in service since 1947.
What are the largest cities in Pennsylvania?
The largest cities in Pennsylvania include Philadelphia, Pittsburgh, Allentown, Reading, Erie.
What is the total population of Pennsylvania?
Pennsylvania has an estimated total population of 13,045,848 based on US Census PEP 2024 data.
Do I have to dial ten digits in Pennsylvania?
In the parts of Pennsylvania covered by an overlay, yes. 15 of the 15 area codes here cover ground another code already covers, and where two codes share an area, local calls need the area code as well as the seven-digit number.
Why does Pennsylvania have 15 area codes?
They arrived one at a time rather than all at once: 215 has been in service since 1947. 15 of the 15 are overlays, laid over a code that already covered the same ground instead of splitting its map in two. The most recent is 835, in service since September 2, 2022.
What is the newest area code in Pennsylvania?
835, in service since September 2, 2022.
Is my county covered by more than one area code in Pennsylvania?
It may be: more than one area code covers 67 of the 67 counties in Pennsylvania, and one county there is covered by 8 of them. The table above shows which codes reach each of the largest cities.