North Carolina · Eastern Time
336 Area Code
Area code 336 is in North Carolina, serving the Piedmont Triad of north-central North Carolina, including Greensboro and Winston-Salem. It is in the Eastern Time zone. It shares its territory with overlay code 743, so 10-digit dialing is required.
Last updated October 1, 2026 · Source: NANPA
Where is the 336 area code?
336 is a North Carolina area code covering the Piedmont Triad of north-central North Carolina, including Greensboro and Winston-Salem. In the wider directory it sits in the South region.
Cities in the 336 area code
- Greensboro
- Winston-Salem
- High Point
- Burlington
- Asheboro
- Kernersville
- Thomasville
- Lexington
- Reidsville
- Clemmons
- Eden
- Mount Airy
- Mocksville
- Elkin
Counties served by 336
Guilford County, Forsyth County, Alamance County, Randolph County, Davidson County, Rockingham County, Surry County, Davie County, Stokes County and Yadkin County.
336 overlay codes and dialing
The 336 territory is covered by an overlay of 2 area codes: 336, 743. All of them serve the same geographic area, and the original code is 336. Because more than one code covers the same ground, 10-digit dialing is mandatory — you must dial the area code for every local call. New phone lines may be assigned any of these codes.
History of the 336 area code
336 went into service on December 15, 1997, created when it was split from 910. It serves Greensboro and the surrounding part of North Carolina, and today shares its territory with overlay code 743. For how codes are created, split, and overlaid, see how area codes work.
Is 336 a scam or spam risk?
336 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 336 number on your screen is no guarantee the caller is in Greensboro, NC or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Other North Carolina area codes
Explore more
See every code in North Carolina, compare codes across the South region, or view all Eastern Time codes. You can also browse the 3XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
336 area code FAQ
Where is the 336 area code?
The 336 area code is in North Carolina, covering the Piedmont Triad of north-central North Carolina, including Greensboro and Winston-Salem, in the South region.
What cities are in the 336 area code?
Cities in the 336 area code include Greensboro, Winston-Salem, High Point, Burlington, Asheboro, Kernersville, Thomasville, Lexington, Reidsville and Clemmons.
What time zone is 336 in?
336 is in the Eastern Time zone.
What is the overlay for the 336 area code?
336 shares its territory with 743. Both codes (336, 743) serve the same area, so 10-digit dialing is required for every call.
When did the 336 area code start?
336 went into service on December 15, 1997.
Do I have to dial 10 digits for 336?
Yes. Because 336 is an overlay area, you must dial the full 10-digit number (area code + 7 digits) for every call.
Is 336 a toll-free or premium code?
No. 336 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.