Find any 610- phone number in Pennsylvania
The 610 area code is one of the original area codes designated for the North American Numbering Plan. It is located in Southeastern Pennsylvania and includes parts of the Greater Philadelphia area, from the Lehigh Valley to the Delaware Valley. The 610 area code has been in use since 1994 when it was split off from area code 215, which had been used for the region since 1947.
Due to increasing population in areas of the 610 area code and a growing need for new phone numbers, an additional area code for the region was introduced in 1999. Area code 484 was assigned to nearby parts of Berks, Chester, Lehigh, Montgomery, and Northampton counties. All six counties still share the two area codes which are now part of the system that designates phone numbers across the United States. Numbers in the 610 area code are now assigned to new customers as needed while existing customers are allowed to keep their phone numbers.