Area codes 336 and 743

Area codes 336 and 743 are telephone overlay area codes in the North American Numbering Plan (NANP) for most of north-central and northwestern North Carolina, including the Piedmont Triad region and portions of the northern Foothills and northern Mountains. Area code 336 was created in an area code split of area code 910 on December 15, 1997, and 743 was added to the same numbering plan area (NPA) on October 24, 2015.