Area Code 610 is telephone area code serving the Philadelphia Region. Philadelphia Region is situated in Pennsylvania - Middle Atlantic State of United States. Area Code 610 was created on 8th January 1994 when area code 215 got split because of the ever increasing demands for telephone lines. Code 610 was overlaid by area code 484 on 5th June 1991.
Areas are either split or overlaid so that to provide telephone lines resourcefully and smoothly. Area splits means to create new area code by dividing a geographical area into smaller areas.
Area code overlay means to add a second area code within same geographic area. Consequently, multiple area codes can co-exist within the same geographic area. Already registered phone numbers within the exhausting area code do not change. People keep on using their current telephone number and area code. However, all new numbers will be provided with new overlaid area code. Ten-digit dialing is obligatory in overlaid areas even while making local calls.
Area Codes surrounding area 610 from four sides are:
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