513 area code
Cincinnati area, Eastern Time.Area code 513 covers Cincinnati, Hamilton, Middletown and 22 more places in Ohio, on Eastern Time. 283 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 513 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 513 has 25. Each one's share is how many 513 numbers start there. Its biggest metro area is Cincinnati, OH-KY-IN.
- Cincinnati64%
- Hamilton7%
- Middletown5%
- Little Miami4%
- Mason3%
- Clermont3%
- Lebanon (Warren)2%
Also: Bethany, Oxford, Harrison, Newtonsville, Seven Mile, Bethel, Williamsburg, Monroe, Trenton, Shandon, South Lebanon, Reily + 6 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 513 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 513 number to them, since you can't tell a work line from a personal cell.
What applies to 513Every 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
513 and 283
513 is one of the original area codes from 1947, and 937 was later split off from it. 513 and 283 cover the same area, so new numbers can get either code and neighbors can have different area codes. 513 holds 94% of the area's exchanges; 283 holds the rest. Local calls take all 10 digits.
- 1947513 starts
- 1996937 split off
- 2023283 overlay
Source: NANPA area code database
Calling a list of 513 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.
513 area code FAQ
What area code is 513?
513 is an Ohio area code for Cincinnati, Hamilton, Middletown, Little Miami and 21 more places.
What time zone is the 513 area code in?
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer).
Is 283 the same as 513?
Same area, different code. 513 and 283 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 513 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 513 area code start?
In 1947: it's one of the original area codes.
Calling 513 numbers? Reach more of them.
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