743 area code
Greensboro area, Eastern Time.Area code 743 covers Greensboro, Winston-Salem, Burlington and 85 more places in North Carolina, on Eastern Time. 336 covers the same area.
Right now in Greensboro
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer)
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
Small talk
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Where 743 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 743 has 88. Each one's share is how many 743 numbers start there. Its biggest metro area is Greensboro-High Point, NC.
- Greensboro13%
- Winston-Salem12%
- Burlington8%
- Lexington4%
- Asheboro4%
- Summerfield4%
- High Point3%
- Mount Airy3%
Also: Eden, Gibsonville, Saxapahaw, Gatewood, Reidsville, Elkin, Thomasville, Julian, Advance, Monticello, Yanceyville, Kimesville + 68 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 743 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 743 number to them, since you can't tell a work line from a personal cell.
What applies to 743Every day, 8 AM to 9 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
743 and 336
743 went into service on May 23, 2016. 743 and 336 cover the same area, so new numbers can get either code and neighbors can have different area codes. 743 holds 17% of the area's exchanges; 336 holds the most. Local calls take all 10 digits.
- 1997336 overlay
- 2016743 starts
Source: NANPA area code database
Calling a list of 743 numbers?
Paste it into the free phone number validator. It checks every number, finds each one's time zone and sorts the list by who you can call right now.
743 area code FAQ
What area code is 743?
743 is a North Carolina area code for Greensboro, Winston-Salem, Burlington, Lexington and 84 more places.
What time zone is the 743 area code in?
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer).
Is 336 the same as 743?
Same area, different code. 743 and 336 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 743 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 743 area code start?
On May 23, 2016.
Calling 743 numbers? Reach more of them.
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