Area codes 336 and 743

Area codes 336 and 743 are NANPA area codes that cover most of north-central and northwestern North Carolina, including the Piedmont Triad region and portions of the northern Foothills and northern Mountains.

The 743 overlay area code officially entered service on October 24, 2015.

Officials from the North Carolina Utilities Commission announced on August 20, 2014, that 336 would be overlaid with a new area code, 743.

The new area code would require 10-digit dialing for local calls, although no long-distance charges would be applied within the 336 territory.

[1] The activation of 743 broke seven-digit dialing throughout the I-85 Corridor in North Carolina; Charlotte (704/980) and the Triangle (919/984) had already been overlaid.