North Carolina · Eastern Time
Greensboro, NC Area Codes
Greensboro is served by 2 area codes (336, 743). Here's which is original, which are overlays, and how to pick one for a new local number.
Last updated June 5, 2026
Area codes serving Greensboro
Greensboro sits in North Carolina, part of the South region and the Eastern Time zone. Its numbers are spread across an overlay of 2 codes that all cover the same ground: 336, 743.
The original code is 336. As the area ran low on numbers, regulators added overlay codes on top instead of splitting the city, so longtime residents kept their numbers while new lines received a newer code.
How to pick an area code for a new number
When you activate a new line in Greensboro, the carrier assigns whichever code has numbers available — you usually can't choose. If a specific code matters to you (for example the prestige of 336), ask the carrier whether any blocks remain, or request a number transfer. All codes here dial identically and cost the same.
Dialing in Greensboro
Because Greensboro is an overlay area, 10-digit dialing is mandatory: always dial the area code plus the seven-digit number, even for a neighbor. See 10-digit dialing and overlay area codes for the background. For every code in North Carolina, visit the North Carolina area codes page.
Quick answers
Greensboro area code FAQ
What area codes does Greensboro use?
Greensboro, NC is served by 2 area codes: 336, 743.
Which is the original Greensboro area code?
336 is the original/primary code for Greensboro; the others are overlays added later for more numbers.
Do I need to dial the area code in Greensboro?
Yes. With multiple overlapping codes, 10-digit dialing is required for every call in this area.