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US area code · Ohio

513 area code

Where the 513 area code is, its overlay and how to dial a +1 513 number from anywhere.

CoversCincinnati, OhioTime zoneEastern (ET)TypeOverlay
Quick answer

The 513 area code is in Cincinnati, Ohio, United States (Eastern (ET)). To call from abroad: +1 513 555-0123. It is an overlay, so all 10 digits are dialled.

StateOhio
Main areaCincinnati
Time zoneEastern (ET)
TypeOverlay
10-digit dialingRequired
In service since01-Jan-1947

The 513 area code is a geographic North American Numbering Plan (NANP) code covering Cincinnati, Ohio. It has been in service since 01-Jan-1947 and sits in the Eastern (ET) time zone.

Overlay 513 shares its region

Several area codes cover the same geographic area, so two neighbours can have different codes. Because of the overlay, you must dial all 10 digits (area code + number) even for local calls.

513283

How to dial a 513 number

From abroad+1 513 555-0123
Within the US / Canada1 513 555-0123
Locally (same area)513 555-0123

Cities in the 513 area code

A 513 number is usually in one of these places in Ohio — 3 counties.

Cincinnati Clermont;HamiltonFairfield ButlerHamilton ButlerMason WarrenMiddletown ButlerNorwoodOxford Butler

Other Ohio area codes

216220234283326330380419436440567614740937

Frequently asked questions

Where is the 513 area code?

The 513 area code is in Cincinnati, Ohio, United States (Eastern (ET)).

Is 513 an overlay area code?

Yes. 513 overlays the same region as 283, so callers dial all 10 digits.

Do I have to dial 10 digits for 513?

Yes — dial the area code plus the seven-digit number.

How do I call a 513 number from another country?

Dial your exit code (or +), then 1, then 513, then the number: +1 513 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 513 number does not pinpoint a street or ZIP code.

Number holders in area code 513

Each prefix (the three digits after the area code) is assigned by NANPA to one telephone company. 799 prefixes are in use in 513, shared by 48 companies. The largest holders:

CompanyPrefixesShare
Cincinnati Bell25131%
Cellco Partnership Dba Verizon Wireless12516%
T-Mobile USA, Inc.7910%
New Cingular Wireless PCS, LLC557%
Level 3 Communications, LLC395%
Onvoy, LLC365%

Source: NANPA central office code assignments. A number keeps its original prefix when it is ported to another carrier.

Complaints about 513 numbers

Reports to the FTC, last 30 days
710
Recorded messages or robocalls
58%
Rank among area codes
#104 of 670
Most reported subjects
Other (339)
Medical & prescriptions (75)
Dropped call or no message (69)

Period Aug 26 – Sep 24, 2026. These are the numbers shown on the caller ID of the reported calls; many are spoofed and do not belong to the real caller.

Source: US Federal Trade Commission, Do Not Call reported calls data (daily files).

All US area codes United States +1 Map of area code 513 — cities & rate centres

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