| Area Code | 843 |
| State | South Carolina |
| Current Time in Area Code 843 | 843> EST |
| Timezone | Eastern Standard Time |
| Regional Market Area | Charleston Area Hilton Head Area Metro Charlotte Myrtle Beach-Florence Area |
| Metro Area(s) | Bennettsville, SC Charleston-North Charleston, SC Florence, SC Georgetown, SC Hilton Head Island-Bluffton, SC |
| Population (2020) | 1826986 |
| Adjacent Area Codes | 704,803,839,854,910,912,980 |
| Overlay Area Codes | 854 |
| Charleston |
| Florence |
| Goose Creek |
| Hilton Head Island |
| Mount Pleasant |
| Myrtle Beach |
| North Charleston |
| Summerville |