Idaho Area Codes
Directory of all 2 telephone area codes assigned to Idaho.
Idaho phone numbers are served by 2 area codes operating in the Mountain / Pacific timezone.Because an overlay is active, 10-digit dialing is mandatory across much of the state. No area codes in Idaho are currently flagged as high-risk scams.
Most populated prefix: area code 208 (Idaho)
All Area Codes in Idaho
Area Code 208
Boise City, Meridian, Nampa, Caldwell, Idaho Falls, Pocatello, Coeur D'alene, Twin Falls, Post Falls, Rexburg
Area Code 986
Boise City, Meridian, Nampa, Caldwell, Idaho Falls, Pocatello, Coeur D'alene, Twin Falls, Post Falls, Rexburg
Major Cities Served by Idaho Area Codes
The most populous urban centers and census places covered by Idaho's area codes, ranked by population.
Idaho Area Code FAQs
Quick answers to common questions about Idaho telephone area codes.
How many area codes does Idaho have?
Idaho has 2 area codes: 208, 986.
What timezone do Idaho area codes use?
Idaho area codes operate in the Mountain / Pacific timezone.
What is the most populated area code in Idaho?
Area code 208 is the most populous prefix in Idaho based on covered city population.
Which Idaho area codes share an overlay?
208 and 986. Overlay codes serve the same area, which is why 10-digit dialing is required.
Are there scam area codes in Idaho?
Idaho has no area codes currently flagged as high-risk scams.
About Idaho Area Codes & Phone Dialing Rules
When placing calls within Idaho, ten-digit dialing (area code + 7-digit telephone number) is required in overlay regions where multiple area codes serve the same geographic boundaries.