Area Code 743

North Carolina

Area code 743 serves North Carolina, primarily Greensboro, in the Eastern Time (ET) time zone. It is an overlay area code sharing territory with area code 336.

Published: February 17, 2026Verified against NANPA and FCC records

Overlay Area Code

This area code shares its geographic footprint with an overlay code, so the same cities are served by two area codes. Because overlays leave existing numbers untouched, this region's relief planning favors adding codes over redrawing boundaries.

The codes serving this same region: area code 336 (Greensboro).

In service since: 23-May-2016

Learn more about overlay and split area codes →

Demographics & Economics

Total Population: 3,075,466
Population Density: 218 people/sq mi
above U.S. average (U.S.: 95 people/sq mi)
Median Household Income: $65,651
below U.S. median (U.S.: $80,734)
Poverty Rate: 14.3%
above U.S. average (U.S.: 12.5%)
Unemployment Rate: 4.5%
below U.S. average (U.S.: 5.2%)
Education Attainment: Bachelor's Degree+
28.8%
below U.S. average (U.S.: 35.7%)
High School or Lower
32.6%

Statistics are population-weighted aggregations from Census ACS 5-year estimates. Population figures are approximate — see Sources & Methodology for details on how area code populations are derived.

See how this area code compares to all US area codes in the income ranking and density ranking.

Time Zone

Eastern Time (ET)

NANPA Relief Status

According to the latest NANPA analysis (July 2026), this area code is not currently listed as exhausting within the next 36 months. No relief planning is in progress for this NPA.

Source: NANPA NPA Relief Planning Reports · See all relief planning statuses

Current Time

Eastern Time (ET)

Prefix Utilization

Geographic Coverage

State

Major Cities

Greensboro
Winston-Salem
High Point
Burlington
Kernersville
Asheboro
Thomasville
Clemmons
Lexington
Mebane
Graham
Eden
Reidsville
Lewisville
Archdale
Elon
Summerfield
Mount Airy
Gibsonville
Roxboro
Oak Ridge
King
Trinity
Mocksville

and 75 more cities

Area Code 743 geographic coverage map (light mode)

History

Area code 743 serves as an overlay for the same territory as area code 336. It was introduced in 2016 to provide additional phone number capacity for the region. It shares its territory with area code area code 336.

Demographics

The estimated population served by area code 743 is approximately 3,075,466. The population density is 218 people per square mile, which is higher than the national average of 95. The median household income is $65,651, which is lower than the national median of $80,734. Approximately 28.8% of adults hold a bachelor's degree or higher, compared to the national rate of 35.7%. This rate is lower than the national average. The poverty rate stands at 14.3%, which is higher than the national rate of 12.5%.

County Coverage

Population-weighted county share based on aggregated ZCTA population (100% = total mapped population for area code 743).

County	Population	Share
Guilford, NC	761,724	24.8%
Forsyth, NC	501,040	16.3%
Davidson, NC	397,183	12.9%
Randolph, NC	312,880	10.2%
Alamance, NC	173,157	5.6%
Rockingham, NC	146,191	4.8%
Caswell, NC	133,403	4.3%
Stokes, NC	129,408	4.2%
Wilkes, NC	99,047	3.2%
Surry, NC	85,799	2.8%
Davie, NC	57,637	1.9%
Person, NC	47,771	1.6%
Iredell, NC	46,316	1.5%
Yadkin, NC	38,828	1.3%
Ashe, NC	28,079	0.9%
Granville, NC	20,687	0.7%
Chatham, NC	20,390	0.7%
Orange, NC	17,019	0.6%
Durham, NC	13,157	0.4%
Alleghany, NC	12,389	0.4%
Henry, VA	8,409	0.3%
Grayson, VA	6,702	0.2%
Moore, NC	5,816	0.2%
Montgomery, NC	4,201	0.1%
Alexander, NC	3,287	0.1%
Caldwell, NC	3,111	0.1%
Watauga, NC	1,835	0.1%