Area Code 610 History:
Area code 610 was put into service. Area code 610 was created from a split of area code 215. In 1999 area code 610 was overlaid with area code 484.
Counties in Pennsylvania within area code 610 include:
Berks County, Bucks County, Carbon County, Chester County, Delaware County, Lancaster County, Lebanon County, Lehigh County, Monroe County, Montgomery County, Northampton County, and Schuylkill County.
Major cities or places in Pennsylvania within area code 610 include:
Area codes 484 and 610 serve southeastern Pennsylvania including the larger cities and communities of Allentown, Bethlehem, Chester, Drexel Hill, Easton, Norristown, Pottstown, Radnor Township, and Reading in addition to many smaller communities within the 484 and 610 service area.