843 area code
Area code 843 is in South Carolina. It covers Charleston, North Charleston, Mount Pleasant and 173 other places: 179 ZIP codes in Charleston, Horry, Berkeley and 15 other counties. Local time there is , Eastern Time. In service since 1998; 854 (2015) overlays it, so a number from there can have either code.
- State
- South Carolina
- Time zone
- Eastern
- Largest city
- Charleston
- Overlays
- 854
- In service since
- 1998
- Rate centres
- 93
- Prefixes assigned
- 783 (7,830,000 numbers)
Who calls from a 843 number
NANPA records the carrier each block of 843 numbers is assigned to. Of the 7.6 million 843 numbers assigned, 35% are with local phone companies (AT&T and Frontier); 34% with mobile carriers (Verizon Wireless, T-Mobile and AT&T Mobility); 29% with cable, internet-calling, business and other carriers (Onvoy); 1% with paging companies.
That is who the numbers were assigned to: people keep their number when they change carrier, so any one number may have moved since.
| Carrier | Kind | Share |
|---|---|---|
| AT&T | Landline | 16% |
| Verizon Wireless | Mobile | 14% |
| T-Mobile | Mobile | 12% |
| AT&T Mobility | Mobile | 8% |
| Onvoy | Cable, VoIP, other | 7% |
| Frontier | Landline | 6% |
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 843
The 71 places with a telephone rate centre of their own using 843, largest first. Each links to its ZIP codes.
Nearby places using 843
These places have no rate centre of their own in NANPA's records; the nearest one uses 843. Near an area-code boundary that can be wrong for part of a town.
- North Charleston
- Goose Creek
- Johns Island
- Carolina Forest
- Okatie
- Socastee
- Hanahan
- Longs
- Pawleys Island
- Ladson
- Red Hill
- Port Royal
- Moncks Corner
- James Island
- Little River
- Garden City
- Effingham
- Litchfield Beach
- Sangaree
- Galivants Ferry
- Forestbrook
- Burton
- Isle Of Palms
- Surfside Beach
- Salters
- North Hartsville
- Edisto Island
- Homewood
- Wadmalaw Island
- Gresham
- Ravenel
- Charleston Afb
- Kiawah Island
- Ruffin
- Dorchester
- Seabrook Island
- McColl
- Sullivan's Island
- Pimlico
- Ridgeville
- Parris Island
- Bonneau Beach
- Early Branch
- Shell Point
- Round O
- New Zion
- Nesmith
- Meggett
- Green Pond
- Cades
- Dovesville
- Edisto Beach
- Lincolnville
- Hamer
- Newtown
- Quinby
- Pinopolis
- Coward
- McBee
- Seabrook
ZIP codes in area code 843
179 ZIP codes in 128 towns, by the town each is mailed to, largest first. Each links to its own page.
Where 843 numbers are issued
NANPA's rate centres with the most 843 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.
| Rate centre | Place | Prefixes |
|---|---|---|
CHARLESTON | Charleston | 186 |
FLORENCE | Florence | 57 |
MYRTLE BCH | Myrtle Beach | 56 |
BEAUFORT | Beaufort | 31 |
HILTONHEAD | Hilton Head Island | 28 |
MTPLEASANT | Mount Pleasant | 19 |
Counties
The counties of its ZIP codes, most residents first, with how many of its ZIP codes each has.
- Charleston County (36)
- Horry County (21)
- Berkeley County (14)
- Beaufort County (20)
- Dorchester County (9)
- Florence County (14)
- Darlington County (7)
- Georgetown County (4)
- Chesterfield County (8)
- Colleton County (11)
- Williamsburg County (7)
- Dillon County (6)
- Marion County (6)
- Jasper County (4)
- Marlboro County (6)
- Clarendon County (4)
- Kershaw County (1)
- Hampton County (1)
Which code covers where you are now? What area code am I in? answers from your location.
Questions about area code 843
Where is area code 843?
Area code 843 is in South Carolina. It covers Charleston, North Charleston, Mount Pleasant and 173 other places: 179 ZIP codes in Charleston, Horry, Berkeley and 15 other counties.
What ZIP codes are in area code 843?
179 ZIP codes, by the town each is mailed to: Charleston (16, 29401 to 29492), North Charleston (5, 29405 to 29420), Mount Pleasant (3, 29464 to 29466), Summerville (4, 29483 to 29486) and 124 more towns. The full list is on this page.
What time zone is area code 843 in?
Eastern time.
Is a 843 number a mobile or a landline?
It can be either. 34% of 843 numbers are assigned to mobile carriers and 35% 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 843?
854. They cover the same area as 843, so a new number there can be given any of them.
Does a 843 number mean the caller is in South 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 843 call can come from anywhere.
Other area codes in South Carolina
All 6 South 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 843.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/843
Underlying data is public domain or openly licensed — sources, vintages and licences.