The 336 area code covers Greensboro, Winston-Salem and 56 more places in North Carolina.
Area code 336 is in North Carolina, on Eastern Time. In the 336 area, phone numbers are given out most in Guilford County, then Forsyth and Alamance counties. It has been in service since December 15, 1997. 743 covers the same area, so two neighbours can have different area codes.
- Where
- 8 counties in North Carolina, mostly Guilford County, Forsyth County and Alamance County
- Time zone
- Eastern Time
- In service since
- December 15, 1997
- Shares its area with
- 743 (since 2016)
- Prefixes in use
- 783
- How to dial
- Local calls need all 10 digits: 336-555-0142.
Find out who called you from a 336 number.
Enter the full 10-digit number to see who it is listed to and the city and state on the listing. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup. To see whether it is a mobile, a landline or a VoIP line, use our free VoIP checker. To see which carrier a (336) number is on today, use our free carrier lookup.
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Greensboro holds 24% of the phone prefixes in area code 336.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 783 prefixes in use shows where 336 numbers are actually given out.
- Greensboro188 prefixes, 24%
- Winston-Salem145 prefixes, 19%
- High Point53 prefixes, 7%
- Burlington51 prefixes, 7%
- Lexington29 prefixes, 4%
- Asheboro29 prefixes, 4%
- Reidsville20 prefixes, 3%
- North Wilkesboro14 prefixes, 2%
Also served: Roxboro, Elkin, Kernersville and Mount Airy and 46 smaller places.
BellSouth (AT&T) holds the most phone number prefixes in area code 336: 163 of 783.
NANPA, which runs the North American numbering plan, assigns each prefix (the three digits after the area code) to one carrier. Here is how the 783 prefixes in use in 336 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| BellSouth (AT&T)AT&T's landline company | 163 | 21% |
| BrightspeedLandline company | 65 | 8% |
| T-MobileMobile network | 63 | 8% |
| AT&T MobilityMobile network | 46 | 6% |
| PAETEC (Windstream)Windstream's business phone network | 43 | 5% |
| Level 3 (Lumen)Lumen's business and wholesale network | 36 | 5% |
| 34 other carriers | 367 | 47% |
68% of these prefixes are pooled, which means the blocks of 1,000 numbers inside them can belong to other carriers. Any number can also have been moved to another carrier since, so this shows who holds the prefixes, not who serves a given number.
Want the carrier of one exact number? Our free carrier lookup checks it, because numbers move between carriers.
Source: NANPA central office code assignments, October 1, 2026.
336 has been overlaid once since 1997.
1997
336 starts on December 15, 1997, split off from 910.
2016
On May 23, 2016, 743 is added on top of 336, so new numbers here can get either code.
A 336 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 336 are 704, 919 and 276.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
North Carolina has 9 other area codes.
These are the questions people ask most about area code 336.
Where is area code 336?
336 covers Greensboro, Winston-Salem, High Point and Burlington and 54 more places in North Carolina. In the 336 area, phone numbers are given out most in Guilford County, then Forsyth and Alamance counties.
What state is area code 336 in?
North Carolina. 336 is a North Carolina area code on Eastern Time.
What cities use area code 336?
The places holding the most 336 prefixes are Greensboro, Winston-Salem, High Point, Burlington, Lexington, Asheboro, Reidsville and North Wilkesboro, out of 58 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.
Which phone company owns area code 336?
No single phone company owns 336. NANPA's records show BellSouth (AT&T) holds the most 336 prefixes, 163 of 783, followed by Brightspeed and T-Mobile. Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 336 in?
336 is on Eastern Time.
When did area code 336 start?
336 went into service on December 15, 1997, when it was split off from 910.
Is 336 the same area as 743?
Yes. 743 (since 2016) covers the same ground as 336. Nobody's number changed when it was added; new lines simply get whichever code has numbers left, so two neighbours can have different codes.
How do I dial a 336 number?
Local calls need all 10 digits: 336-555-0142.
Is 336 a toll-free number?
No. 336 is a regular area code for Greensboro and Winston-Salem in North Carolina, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 336?
The closest are 704/980 (Charlotte, North Carolina), 919/984 (Raleigh, North Carolina), 276 (Norton, Virginia) and 434 (Charlottesville, Virginia), measured between the centres of each area.
Who called me from a 336 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 336 a scam?
336 is a real North Carolina area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Put this lookup on your site: our free area code widget takes two lines of code and shows any US area code's state, time zone and local time.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.