Ohio, United States
Eastern Time
3:15 AM
Area Code
513
State / Province
Ohio
Country
United States
Time Zone
Eastern Time
Area code 513 covers 25 cities and communities across Ohio, based on telephone company rate center data.
Use the E.164 format for clickable phone links (RFC 3966):
<a href="tel:+15135550100">+15135550100</a><a href="tel:+15135550199">+15135550199</a>Area code 513 is a North American Numbering Plan (NANP) telephone area code assigned to Ohio, United States. It is one of 13 area codes serving Ohio. As population and demand for phone numbers grew, the region was divided into multiple numbering plan areas to avoid exhausting the available 7-digit number pool.
Yes. 513 is an active North American Numbering Plan (NANP) area code, currently assigned to Ohio, United States. It is safe to answer or dial calls using this area code.
Area code 513 covers 25 cities and communities in Ohio, including Bethany, Bethel, Butlerville, Cincinnati, Clermont, and 20 more localities. This is based on telephone company rate center data — the geographic areas carriers use to determine local calling boundaries and to assign numbers when a business or individual requests a phone number in a specific city.
All numbers in the 513 area code observe Eastern Time (IANA timezone: America/New_York). Eastern Time is UTC−5 in winter (EST) and UTC−4 in summer (EDT). When placing a call to a 513 number from a different time zone, check the current local time above to avoid calling outside of business hours.
From within Ohio, dial the 7-digit local number directly if calling within the same rate center, or dial 1 + 513 + 7-digit number for long-distance calls within North America. From outside the US or Canada, dial your country's international exit code followed by 1 513 XXX XXXX. The country code for both the United States and Canada in NANP is +1.
Format 513 numbers using E.164 notation as required by RFC 3966: prefix with +1 and omit dashes and parentheses (e.g., +15135550100). This format ensures tel: links work correctly on all mobile browsers and VoIP apps. See the tel: URI formatting guide for complete examples.