Mississippi Area Codes

Area codes: 5
ZIP codes: 531
Cities & towns: 438
Counties: 82

Every area code in Mississippi

All Mississippi area codes, what each primarily serves, and which share ground with another.
Area code	Primarily serves	Shares ground with	In service
228	Gulfport	no overlay	1997
471	Southaven	662	2026
601	Jackson	769	1947
662	Southaven	471	1999
769	Jackson	601	2005

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

Which codes share the same ground

Mississippi has 2 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.

471 662
601 769

228 has no overlay: it is the only code serving its territory.

Where Mississippi's communities sit

Each point is a Mississippi 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 Mississippi cities and their codes

largest 25

Scope every area code assigned to Mississippi. 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.