Where Is Area Code 610?
Area code 610 serves eastern and southeastern Pennsylvania, with Allentown as its primary city. The region is part of the Mid-Atlantic area of the United States Census region and includes much of the Lehigh Valley and Philadelphia’s western suburbs.
The area code covers parts of Berks, Chester, Delaware, Lancaster, Lehigh, Montgomery, and Northampton counties. Major population centers include Allentown, Bethlehem, Easton, Reading, Chester, West Chester, Pottstown, and Norristown.
The 610 region includes the Lehigh Valley, where the Lehigh River passes through Allentown and Bethlehem. Notable places in the area include Lehigh University in Bethlehem, Lafayette College in Easton, and Longwood Gardens near Kennett Square.
Cities and Communities in the 610 Area Code
- Allentown, Lehigh County
- Bethlehem, Lehigh and Northampton counties
- Boyertown, Berks County
- Chester, Delaware County
- Coatesville, Chester County
- Downingtown, Chester County
- Easton, Northampton County
- Emmaus, Lehigh County
- Kennett Square, Chester County
- Kutztown, Berks County
- Macungie, Lehigh County
- Media, Delaware County
- Norristown, Montgomery County
- Pottstown, Montgomery County
- Reading, Berks County
- West Chester, Chester County
History of Area Code 610
Area code 610 was established in 1994 through a geographic split of area code 215. The new code served Allentown, Reading, and many communities outside Philadelphia, while Philadelphia retained area code 215.
Area code 484 was introduced as an overlay in 1999. Area code 835 became a second overlay for the same region in 2022. These overlays added more telephone number capacity without changing the geographic boundaries of the 610 region.
Key Facts About Area Code 610
- Area code 610 is a geographic area code in Pennsylvania, and Allentown is its primary city.
- Area code 610 is located in the Mid-Atlantic region of the United States Census Bureau.
- Area code 610 uses Eastern Time.
- Area code 610 was created in 1994 by splitting area code 215.
- Area code 484 has overlaid area code 610 since 1999.
- Area code 835 was added as a second overlay in 2022.
- Area code 610 covers parts of Berks, Chester, Delaware, Lancaster, Lehigh, Montgomery, and Northampton counties.
- Lehigh University, Lafayette College, Kutztown University, and West Chester University are located within the 610 region.
Frequently Asked Questions
What state is area code 610 in?
Area code 610 is in Pennsylvania (PA).
What major cities use area code 610?
Major cities using area code 610 include Allentown, Bethlehem, Easton, Reading, Chester, West Chester, Pottstown, and Norristown.
What time zone is area code 610 in?
Area code 610 is in Eastern Time.
Is area code 610 a toll-free number?
No. Area code 610 is a geographic area code, not a toll-free number.