Northeast region · Eastern Time
Pennsylvania Area Codes
All 15 area codes serving Pennsylvania, the cities each one covers, and which are overlays. Pennsylvania is served by 15 area codes in the Eastern Time zone.
Last updated October 1, 2026
Full list
Every Pennsylvania area code
Pennsylvania is served by 15 area codes in the Eastern Time zone. 8 of these are overlay codes layered over busy metros; the rest are geographic codes.
| Code | Area served | Type | In service |
|---|---|---|---|
| 215 | Philadelphia and its northern suburbs in Bucks and eastern Montgomery counties | Geographic | Since 1947 |
| 223 | South-central Pennsylvania including Harrisburg, Lancaster, York and Chambersburg | Overlay | Since 2017 |
| 267 | Philadelphia and its northern suburbs in Bucks and eastern Montgomery counties | Overlay | Since 1999 |
| 272 | Northeastern and north-central Pennsylvania, including Scranton, Wilkes-Barre and Williamsport | Overlay | Since 2013 |
| 412 | Pittsburgh and most of Allegheny County in southwestern Pennsylvania | Geographic | Since 1947 |
| 445 | Philadelphia and its northern suburbs in Bucks and eastern Montgomery counties | Overlay | Since 2018 |
| 484 | Southeastern Pennsylvania: Lehigh Valley, Berks County and Philadelphia's suburbs | Overlay | Since 1999 |
| 570 | Northeastern and north-central Pennsylvania, including Scranton, Wilkes-Barre and Williamsport | Geographic | Since 1998 |
| 582 | Western and central Pennsylvania, including Erie, Altoona, State College and Johnstown | Overlay | Since 2021 |
| 610 | Southeastern Pennsylvania: Lehigh Valley, Berks County and Philadelphia's suburbs | Geographic | Since 1994 |
| 717 | South-central Pennsylvania including Harrisburg, Lancaster, York and Chambersburg | Geographic | Since 1947 |
| 724 | Southwestern Pennsylvania surrounding Pittsburgh, outside most of Allegheny County | Geographic | Since 1998 |
| 814 | Western and central Pennsylvania, including Erie, Altoona, State College and Johnstown | Geographic | Since 1947 |
| 835 | Southeastern Pennsylvania: Lehigh Valley, Berks County and Philadelphia's suburbs | Overlay | Since 2022 |
| 878 | Pittsburgh and southwestern Pennsylvania, overlaying both 412 and 724 | Overlay | Since 2001 |
Area codes and dialing in Pennsylvania
Pennsylvania's 15 area codes mix older geographic codes with newer overlays. The busiest metros — around Allentown, Erie, Harrisburg — carry the most numbers and rely on overlays, which is why 10-digit dialing is required there. Quieter parts of the state may still use a single code. The original code in the Pennsylvania list is 215 (Philadelphia).
Whenever a Pennsylvania region runs low on numbers, a new overlay is added on top rather than splitting the map, so existing customers keep their numbers. See 10-digit dialing for what that means in practice, or the newest area codes for upcoming changes.
Cities with multiple area codes
These Pennsylvania metros are served by an overlay of two or more codes, so 10-digit dialing applies: Allentown · Philadelphia · Erie · Harrisburg · Pittsburgh · Scranton.
Browse Pennsylvania another way
Explore by Northeast region, by time zone, or jump to the city index. You can also see the complete numeric list of every US area code.
Quick answers
Pennsylvania area code FAQ
How many area codes does Pennsylvania have?
Pennsylvania currently has 15 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?
The busiest metro in Pennsylvania is served by the 215 code. Major cities include Allentown, Erie, Harrisburg, New Castle, Philadelphia.
Does Pennsylvania require 10-digit dialing?
Yes, in its overlay metros you must dial all 10 digits. Ten-digit dialing is the national standard.