South Carolina Area Codes

Area codes: 6
ZIP codes: 534
Cities & towns: 376
Counties: 46

Every area code in South Carolina

All South Carolina area codes, what each primarily serves, and which share ground with another.
Area code	Primarily serves	Shares ground with	In service
803	Columbia	839	1947
821	Greenville	864	2024
839	Columbia	803	2020
843	Charleston	854	1998
854	Charleston	843	2015
864	Greenville	821	1995

A code in the “shares ground” column is an overlay: it covers the same territory rather than a different part of South Carolina, which is why local calls there are dialled as ten digits.

Which codes share the same ground

South Carolina has 3 groups of codes that overlay one another: the codes inside a group cover the same territory rather than different parts of the state, so local calls there are dialled as ten digits.

Where South Carolina's communities sit

Each point is a South Carolina community, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Largest South Carolina cities and their codes

largest 25

Scope every area code assigned to South Carolina. Source LocalCallingGuide NPA list (2026-07 NPA list) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated 16 July 2026. Overlay relationships come from the numbering-plan authority; the city match is computed.