Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — AREA-CODE/743

743 area code

Area code 743 is in North Carolina. It covers Greensboro, Winston-Salem, High Point and 114 other places: 175 ZIP codes in Guilford, Forsyth, Davidson and 13 other counties. Local time there is , Eastern Time. In service since 2016 as an overlay: it covers the same area as 336, so a number from there can have either code.

Time zone
Eastern
Largest city
Greensboro
Overlays
336
In service since
2016
Rate centres
66
Prefixes assigned
161 (1,610,000 numbers)

Who calls from a 743 number

NANPA records the carrier each block of 743 numbers is assigned to. Of the 1.3 million 743 numbers assigned, 70% are with cable, internet-calling, business and other carriers (Onvoy, Bandwidth and Commio); 30% with mobile carriers (Verizon Wireless, T-Mobile and AT&T Mobility).

That is who the numbers were assigned to: people keep their number when they change carrier, so any one number may have moved since.

Carriers holding the most 743 numbers
CarrierKindShare
OnvoyCable, VoIP, other40%
Verizon WirelessMobile13%
BandwidthCable, VoIP, other9%
T-MobileMobile8%
AT&T MobilityMobile7%
CommioCable, VoIP, other3%

An area code says where a number was issued, not where the caller is: people keep their numbers when they move, and caller ID can be set to show any number, which the FCC calls spoofing. If a call you did not expect asks for money or personal details, the FCC advises hanging up and calling the company back on a number you look up yourself. Unwanted calls can be reported to the FTC at ReportFraud.ftc.gov.

Places in area code 743

The 49 places with a telephone rate centre of their own using 743, largest first. Each links to its ZIP codes.

Places in area code 743
PlaceZIP codesPopulation
Greensboro, NC 28 301,198
Winston-Salem, NC 25 252,037
High Point, NC 7 116,245
Burlington, NC 3 59,610
Kernersville, NC 2 27,830
Asheboro, NC 3 27,580
Thomasville, NC 2 27,321
Lexington, NC 4 19,690
Eden, NC 2 15,356
Reidsville, NC 2 14,585
Lewisville, NC 1 13,828
Summerfield, NC 1 11,116
Mount Airy, NC 1 10,633
Gibsonville, NC 1 9,467
Roxboro, NC 2 8,182
King, NC 1 7,408
Timberlake, NC 1 7,242
Mocksville, NC 1 6,068
Walkertown, NC 1 5,873
Randleman, NC 1 4,644
North Wilkesboro, NC 2 4,421
Elkin, NC 1 4,043
Welcome, NC 1 3,521
Rural Hall, NC 4 3,466
Julian, NC 1 3,366
Westfield, NC 1 3,068
Madison, NC 1 2,242
Yanceyville, NC 1 2,215
Badin, NC 1 2,184
Ramseur, NC 1 2,150
Walnut Cove, NC 1 2,115
Mulberry, NC — 2,037
Sandy Ridge, NC 1 2,032
Dobson, NC 1 1,652
Boonville, NC 1 1,593
Southmont, NC 1 1,525
Denton, NC 1 1,506
Pilot Mountain, NC 1 1,483
West Jefferson, NC 1 1,436
Advance, NC 1 1,408
Saxapahaw, NC 1 1,301
Stoneville, NC 1 1,094
Hays, NC 1 1,053
East Bend, NC 1 715
Prospect Hill, NC 1 594
Ruffin, NC 1 423
Seagrove, NC 1 407
Danbury, NC 1 197
Roaring Gap, NC 1 40

Nearby places using 743

These places have no rate centre of their own in NANPA's records; the nearest one uses 743. Near an area-code boundary that can be wrong for part of a town.

ZIP codes in area code 743

175 ZIP codes in 102 towns, by the town each is mailed to, largest first. Each links to its own page.

Where 743 numbers are issued

NANPA's rate centres with the most 743 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.

Rate centres using area code 743
Rate centrePlacePrefixes
GREENSBORO Greensboro 21
WINSTN SAL Winston-Salem 19
BURLINGTON Burlington 13
LEXINGTON Lexington 7
ASHEBORO Asheboro 6
HIGH POINT High Point 6

Counties

The counties of its ZIP codes, most residents first, with how many of its ZIP codes each has.

Which code covers where you are now? What area code am I in? answers from your location.

Questions about area code 743

Where is area code 743?

Area code 743 is in North Carolina. It covers Greensboro, Winston-Salem, High Point and 114 other places: 175 ZIP codes in Guilford, Forsyth, Davidson and 13 other counties.

What ZIP codes are in area code 743?

175 ZIP codes, by the town each is mailed to: Greensboro (28, 27401 to 27499), Winston-Salem (25, 27101 to 27199), High Point (7, 27260 to 27268), Burlington (3, 27215 to 27217) and 98 more towns. The full list is on this page.

What time zone is area code 743 in?

Eastern time.

Is a 743 number a mobile or a landline?

It can be either. 30% of 743 numbers are assigned to mobile carriers and under 1% to local phone companies (NANPA, 2026-10-10); the rest are with cable, internet-calling, business and paging carriers. A number keeps its area code when it moves to another carrier.

What area codes overlay 743?

336. They cover the same area as 743, so a new number there can be given any of them.

Does a 743 number mean the caller is in North Carolina?

Not necessarily. An area code says where the number was first issued. People keep their numbers when they move or switch carriers, and calling software can show any number, so a 743 call can come from anywhere.

Other area codes in North Carolina

All 10 North Carolina area codes, by area, with the cities each covers

Source: NANPA NPA database, central office code and thousands-block assignments, 2026-10-10. Places are matched to NANPA's rate centres by name; see sources.

Cite this page

zipcodes.pro. “Area code 743.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/743

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