Where is the 743 area code?

Area code 743 covers Greensboro in North Carolina, on Eastern Time.

What time zone is area code 743 in?

Numbers in the 743 area code sit in Eastern Time.

Is 743 a toll-free or scam area code?

No. 743 is a geographic North American Numbering Plan area code assigned to North Carolina. Toll-free numbers use 800, 833, 844, 855, 866, 877 and 888. A call from 743 can still be spoofed, so treat unexpected calls with the usual caution.

Area code lookup

743 area code

Where the 743 area code is, which cities and counties it serves, the local time zone and the overlay codes dialled alongside it.

State: NC
Cities covered: 1
Counties: 1
Time zone: Eastern Time

Quick answer

Area code 743 serves Greensboro in North Carolina. It sits in Eastern Time and covers 1 county and about 9 ZIP codes across the metros we track. Numbers there are also dialled as 336.

Cities in the 743 area code

Each city links to its full local profile: sales tax, housing, income and ZIP codes.

City	County	Time zone	ZIP codes
Greensboro, NC	Guilford County	EST/EDT	9

Related area codes

Codes that share or border the same calling area.

743 area code FAQ

The questions people ask about this code.

Where is area code 743?

743 is a geographic area code in North Carolina, covering Greensboro.

What time is it in the 743 area code?

743 observes Eastern Time (EST/EDT).

Is 743 a scam area code?

No — it is a normal geographic code, not a toll-free or premium-rate prefix. Caller ID can be spoofed on any code, so verify unexpected callers before sharing information.

Sources & transparency

North American Numbering Plan Administrator (NANPA) area code assignments — area code to geography mapping and overlay relationships
US Census Bureau, American Community Survey 2019-2023 5-year estimates — city, county and ZIP code geography

Last reviewed August 2026. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.