WHAT YOU NEED TO KNOW
Area code 283 serves the Greater Cincinnati region in southwestern Ohio, covering cities including Cincinnati, Blue Ash, Norwood, and Sharonville. Established in 2021 as an overlay to area code 513, it serves approximately 2.3 million residents across Hamilton and surrounding counties in the Cincinnati metropolitan area.
- Population: approximately 2.3 million in the Greater Cincinnati metro
- Overlay: Overlay: 513
- Dialing: 10-digit dialing required
- Source Type: Local geographic code
Geographic Coverage
Area code 283 covers southwestern Ohio, centered on Hamilton County, which contains Cincinnati and its inner suburbs such as Norwood, Deer Park, Cheviot, and Mariemont. The code also extends into parts of Warren and Clermont counties, reaching communities like Milford and Loveland. Together with the 513 overlay, it serves the full Cincinnati metropolitan statistical area, one of the larger urban markets in the Midwest.
Population and Business Context
The Cincinnati metro supported by area code 283 is home to approximately 2.3 million people and a diverse economy. Key industries include advanced manufacturing, consumer goods, financial services, healthcare, and retail distribution. The region hosts the headquarters of several Fortune 500 companies. This economic diversity creates consistent demand for local phone numbers across industries ranging from healthcare providers to logistics firms and professional services.
Area Code History
Area code 283 was introduced in 2021 as a geographic overlay to the existing 513 area code, which has served the Cincinnati region since 1947. The North American Numbering Plan Administrator (NANPA) created the overlay because the supply of available 513 numbers was projected to be exhausted. Both codes now serve the same geographic territory, meaning new subscribers in the region may receive numbers with either the 513 or 283 prefix.
How to Dial
Because 283 is an overlay to 513, callers within the same local area must dial all 10 digits when calling any number in either code. Dialing only 7 digits will not connect the call. For long-distance calls originating outside the region, dial 1 followed by the full 10-digit number. This 10-digit local dialing requirement took effect when the 283 overlay was activated in 2021.
Need a 283 Number for Your Cincinnati Business?
Businesses operating in the Greater Cincinnati area can use a 283 local number to establish a recognizable presence in the market. Convirza provisions trackable local numbers in any North American area code, including 283, so your calls connect with a familiar regional prefix. Setup is fast and the number can ring to any phone, team, or location you choose. Every call to your 283 number is automatically scored, recorded, and source-attributed through dynamic number insertion (DNI). You get clear data on which campaigns, channels, or keywords drove each call. Routing rules let you direct calls to the right agent or office in real time, so no inquiry goes unanswered.
750+ customers · 25 years of call data