743 Area Code — Greensboro, NC
Area code 743 serves Greensboro and 2 other cities in North Carolina. Local time follows America/New_York. It overlays with 336, so 10-digit dialling is required.
- State
- North Carolina
- Primary city
- Greensboro
- Timezone
- America/New_York
- In service since
- 2014
- Type
- Overlay
- Overlay codes
- 336
Overlay of 336
Cities Served by 743
The 743 area code covers 3 cities and communities in North Carolina.
- Greensboro
- Winston-Salem
- High Point
About Area Code 743
Area code 743 is a North American Numbering Plan (NANP) area code that has been in service since 2014. It is administered by NANPA on behalf of the FCC and serves the North Carolina region anchored on Greensboro.
743 is an overlay code, which means it shares its geographic boundaries with one or more existing area codes (336). Overlays are created when a region exhausts the supply of phone numbers in its original area code. Within an overlay region, residents must dial all 10 digits even for local calls, because the same 7-digit number can exist under multiple area codes.
Mobile numbers in 743 are portable: a person who moved away from Greensboro may still carry a 743 mobile number on their device. If you receive an unexpected call from a 743 number, run it through the reverse lookup tool above for the most accurate, free identification.
If you live or do business in North Carolina, you may also interact with neighbouring or overlay codes (336). See the related codes section below to explore the rest of North Carolina.
Other North Carolina Area Codes
Continue exploring the North Carolina numbering plan.
743 Area Code FAQ
Where is area code 743?
Area code 743 is located in North Carolina, primarily serving Greensboro and surrounding cities including Winston-Salem, High Point. The region operates on ET (America/New_York) time.
What state is 743 area code?
743 is a North Carolina area code. It was put into service in 2014 as an overlay and shares its geographic footprint with overlay code 336.
Is 743 a scam area code?
743 is a legitimate North American area code allocated by NANPA to North Carolina. Like any geographic area code, scammers sometimes spoof 743 numbers — judge each call by content (urgent demands, unfamiliar transfers) rather than the area code alone. Run the specific number through our reverse lookup if you're unsure.
What time zone does 743 use?
Area code 743 operates on ET (America/New_York). Numbers in this area code follow standard North Carolina time-zone rules including any daylight-saving transitions for that region.
Can I look up a specific 743 phone number?
Yes. Use the reverse lookup widget above to enter a full 743 number. NumLocation returns the line type (mobile, landline, VoIP), carrier, rate-center city, and any public listings tied to the number — free.
What's the difference between 743 and 336?
743 and 336 cover the same North Carolina geographic area as overlay codes. Calls between them are local, but you must dial all 10 digits. New phone numbers in this region are assigned from either pool depending on what's available with the carrier at signup.