Area codes in Kansas City, Missouri
Kansas City, Missouri uses 2 area codes — 816 and 975. The main Kansas City area code is 816.
Area codes serving Kansas City
Phone numbers in Kansas City are written as ten digits — for example (816) 555-0190 — and fall in the Central Time zone.
How Kansas City came to have 2 area codes
The original Kansas City area code is 816, in service since 1947. As the area ran low on available numbers, an overlay code was added over the same region for new phone lines: 975 (2023). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Kansas City now uses all 2 codes and every local call is dialed with ten digits.
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Frequently asked questions
What is the area code for Kansas City?
The main area code for Kansas City, Missouri is 816. Kansas City is now served by 2 area codes in total: 816, 975.
How many area codes does Kansas City have?
Kansas City has 2 area codes: 816, 975.
Why does Kansas City have more than one area code?
As Kansas City used up the numbers available in its original area code (816, in service since 1947), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.
How do you dial a Kansas City number?
Dial all 10 digits — the area code (816 or 975) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.