Located in the Eastern (GMT -05:00) time zone. Area code 212 serves the state of New York. This area code was assigned on January 1st, 1947. On January 1st, 1947 it went into service. 212 is a General Purpose Code. 212 service area does overlap with 332 646 917 area codes. Dialing pattern for local calls within the same NPA (area code) is 1+10D.