Indiana Area Codes

Area codes: 8
ZIP codes: 968
Cities & towns: 733
Counties: 92

Every area code in Indiana

All Indiana area codes, what each primarily serves, and which share ground with another.
Area code	Primarily serves	Shares ground with	In service
219	Hammond	no overlay	1948
260	Fort Wayne	no overlay	2002
317	Indianapolis	463	1947
463	Indianapolis	317	2016
574	South Bend	no overlay	2002
765	Indianapolis	no overlay	1997
812	Evansville	930	1947
930	Evansville	812	2015

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

Which codes share the same ground

Indiana 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.

317 463
812 930

219, 260, 574 and 765 have no overlay: each is the only code serving its own territory.

Where Indiana's communities sit

Each point is an Indiana 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 Indiana cities and their codes

largest 25

Scope every area code assigned to Indiana. 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.