Area codes in Cincinnati, Ohio
Cincinnati, Ohio uses 2 area codes — 513 and 283. The main Cincinnati area code is 513.
Area codes serving Cincinnati
Phone numbers in Cincinnati are written as ten digits — for example (513) 555-0190 — and fall in the Eastern Time zone.
How Cincinnati came to have 2 area codes
The original Cincinnati area code is 513, 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: 283 (2023). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Cincinnati now uses all 2 codes and every local call is dialed with ten digits.
All Ohio area codes · Is a Cincinnati call a scam?
Nearby cities
- Covington area codes
- Middletown area codes
- Oxford area codes
- Dayton area codes
- Frankfort area codes
- Muncie area codes
- New Albany area codes
- Louisville area codes
More cities in Ohio
- Cleveland area codes
- Columbus area codes
- Delaware area codes
- Toledo area codes
- Akron area codes
- Athens area codes
- Youngstown area codes
- Lima area codes
Frequently asked questions
What is the area code for Cincinnati?
The main area code for Cincinnati, Ohio is 513. Cincinnati is now served by 2 area codes in total: 513, 283.
How many area codes does Cincinnati have?
Cincinnati has 2 area codes: 513, 283.
Why does Cincinnati have more than one area code?
As Cincinnati used up the numbers available in its original area code (513, 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 Cincinnati number?
Dial all 10 digits — the area code (513 or 283) 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.