283 area code
Cincinnati area, Eastern Time.Area code 283 covers Cincinnati, Hamilton, Little Miami and 22 more places in Ohio, on Eastern Time. 513 covers the same area.
Right now in Cincinnati
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer)
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
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Where 283 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 283 has 25. Each one's share is how many 283 numbers start there. Its biggest metro area is Cincinnati, OH-KY-IN.
- Cincinnati30%
- Hamilton13%
- Little Miami6%
- Clermont6%
- Mason4%
- Lebanon (Warren)4%
- Trenton4%
- Middletown2%
- Bethany2%
- Oxford2%
- Harrison2%
- Newtonsville2%
Also: Seven Mile, Bethel, Williamsburg, Shandon, South Lebanon, Morrow, Waynesville, Morning Sun, Butlerville, Fayetteville, Monroe, Reily + 1 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 283 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 283 number to them, since you can't tell a work line from a personal cell.
What applies to 283Every day, 8 AM to 9 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
283 and 513
283 went into service on April 28, 2023. 283 and 513 cover the same area, so new numbers can get either code and neighbors can have different area codes. 283 holds 6% of the area's exchanges; 513 holds the most. Local calls take all 10 digits.
- 1947513 overlay
- 2023283 starts
Source: NANPA area code database
Calling a list of 283 numbers?
Paste it into the free phone number validator. It checks every number, finds each one's time zone and sorts the list by who you can call right now.
283 area code FAQ
What area code is 283?
283 is an Ohio area code for Cincinnati, Hamilton, Little Miami, Clermont and 21 more places.
What time zone is the 283 area code in?
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer).
Is 513 the same as 283?
Same area, different code. 283 and 513 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 283 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 283 area code start?
On April 28, 2023.
Calling 283 numbers? Reach more of them.
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