Iowa area codes

Codes in service in Iowa

Iowa has 5 geographic area codes in service: 319, 515, 563, 641, 712. 319 is the oldest, dated 1947, and 563 the newest, dated 25 Mar 2001.1 All of Iowa's codes are on Central time.

Area code	NANPA location	NPA in-service date	In-service overlay peers	Time zone	Local calls within the code
319	IA	1947	None listed	Central	10 digits
515	IA	1947	None listed	Central	10 digits
563	IA	25 Mar 2001	None listed	Central	7 digits
641	IA	9 Jul 2000	None listed	Central	7 digits
712	IA	1947	None listed	Central	7 digits

Scroll the table sideways to see every column. Sources: NANPA (14 October 2026 file).

History and overlays in Iowa

Before 1960: 319 (1947), 515 (1947), 712 (1947)
2000s: 641 (9 Jul 2000), 563 (25 Mar 2001)

NANPA lists no in-service overlays among these codes, so each may serve its own part of Iowa.1

Dialing in Iowa

Local calls within a single area code in Iowa differ: 7 digits for 563, 641, 712; 10 digits for 319, 515. From any of Iowa's codes, local calls to another area code are all recorded as 10 digits.1 Seven-digit local dialing is still recorded for 563, 641, 712.

Neighbours of Iowa

Regions that border Iowa:

Illinois: 17 codes (217, 224, 309, 312, ...)
Minnesota: 8 codes (218, 320, 507, 612, ...)
Missouri: 9 codes (235, 314, 417, 557, ...)
Nebraska: 3 codes (308, 402, 531)

Rules that apply to every region are on the area-code reference.

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Sources

Every regulatory and pricing claim on this page links to the primary source it came from. Figures were checked on the date shown at the top of the page; rules and prices change, so verify before relying on one.

NANPA, NPA Database CSV, file dated 14 October 2026; US geographic codes, location, dates, overlay complexes, dialing plan and time zone. Retrieved 14 Oct 2026
https://reports.nanpa.com/public/npa_report.csv