Located in the Eastern (GMT -05:00) time zone. Area code 743 serves the state of North Carolina. This area code was assigned on August 13th, 2014. On May 23rd, 2016 it went into service. 743 is a General Purpose Code. 743 service area does overlap with 336 area codes. Dialing pattern for local calls within the same NPA (area code) is 10D.