Located in the Eastern (GMT -05:00) time zone. Area code 848 serves the state of New Jersey. This area code was assigned on April 2nd, 2001. On December 29th, 2001 it went into service. 848 is a General Purpose Code. 848 service area does overlap with 732 area codes. Dialing pattern for local calls within the same NPA (area code) is 10D. Calls between the 732 and 848 NPAs may be dialed as 10D.