Area code 862 serves the state of New Jersey. This area code was assigned on April 2nd, 2001. On December 29th, 2001 it went into service. 862 is a General Purpose Code. 862 service area does overlap with 973 area codes. Dialing pattern for local calls within the same NPA (area code) is 10D. Calls between the 973 and 862 NPAs can be dialed as 10D.