West region · Mountain Time
Idaho Area Codes
All 2 area codes serving Idaho, the cities each one covers, and which are overlays. Idaho is served by 2 area codes in the Mountain Time zone.
Last updated June 5, 2026
Full list
Every Idaho area code
Idaho is served by 2 area codes in the Mountain Time zone. 1 of these are overlay codes layered over busy metros; the rest are geographic codes. Southern Idaho (Boise) is Mountain; the Panhandle north of the Salmon River is Pacific.
| Code | Main city | Type | Status |
|---|---|---|---|
| 208 | Boise | Geographic | In service |
| 986 | Boise | Overlay | In service |
Area codes and dialing in Idaho
Idaho's 2 area codes mix older geographic codes with newer overlays. The busiest metros — around Boise — carry the most numbers and rely on overlays, which is why 10-digit dialing is required there. Quieter parts of the state may still use a single code. The original code in the Idaho list is 208 (Boise).
Whenever a Idaho region runs low on numbers, a new overlay is added on top rather than splitting the map, so existing customers keep their numbers. See 10-digit dialing for what that means in practice, or the newest area codes for upcoming changes.
Cities with multiple area codes
These Idaho metros are served by an overlay of two or more codes, so 10-digit dialing applies: Boise.
Browse Idaho another way
Explore by West region, by time zone, or jump to the city index. You can also see the complete numeric list of every US area code.
Quick answers
Idaho area code FAQ
How many area codes does Idaho have?
Idaho currently has 2 area codes: 208, 986.
What is the main area code for Idaho?
The busiest metro in Idaho is served by the 208 code. Major cities include Boise.
Does Idaho require 10-digit dialing?
Yes, in its overlay metros you must dial all 10 digits. Ten-digit dialing is the national standard.