Idaho area codes

Codes in service in Idaho

Idaho has 2 geographic area codes in service: 208, 986. 208 is the oldest, dated 1947, and 986 the newest, dated 5 Sep 2017.1 The time zones across Idaho's codes are Mountain and Pacific and Pacific.

Area code	NANPA location	NPA in-service date	In-service overlay peers	Time zone	Local calls within the code
208	ID	1947	986	Mountain and Pacific	10 digits
986	ID	5 Sep 2017	208	Pacific	10 digits

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

History and overlays in Idaho

Before 1960: 208 (1947)
2010s: 986 (5 Sep 2017)

Idaho's in-service overlay group is 208/986.1

208/986: 208 (1947) was joined by 986 on 5 Sep 2017.

Dialing in Idaho

Local calls within a single area code in Idaho (208, 986) are all recorded as 10 digits. From any of Idaho's codes, local calls to another area code are all recorded as 10 digits.1

Neighbours of Idaho

Regions that border Idaho:

Montana: 1 code (406)
Nevada: 3 codes (702, 725, 775)
Oregon: 4 codes (458, 503, 541, 971)
Utah: 3 codes (385, 435, 801)

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