Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — AREA-CODE/513

513 area code

Area code 513 is in Ohio. It covers Cincinnati, Hamilton, Middletown and 120 other places: 120 ZIP codes in Hamilton, Butler, Clermont and 2 other counties. Local time there is , Eastern Time. In service since 1947; 283 (2023) overlays it, so a number from there can have either code.

State
Ohio
Time zone
Eastern
Largest city
Cincinnati
Overlays
283
In service since
1947
Rate centres
25
Prefixes assigned
784 (7,840,000 numbers)

Who calls from a 513 number

NANPA records the carrier each block of 513 numbers is assigned to. Of the 7.8 million 513 numbers assigned, 37% are with mobile carriers (Verizon Wireless, T-Mobile and AT&T Mobility); 34% with local phone companies (Cincinnati Bell); 26% with cable, internet-calling, business and other carriers (Onvoy and Bandwidth); 3% with paging companies.

That is who the numbers were assigned to: people keep their number when they change carrier, so any one number may have moved since.

Carriers holding the most 513 numbers
CarrierKindShare
Cincinnati BellLandline29%
Verizon WirelessMobile19%
T-MobileMobile11%
OnvoyCable, VoIP, other8%
AT&T MobilityMobile7%
BandwidthCable, VoIP, other5%

An area code says where a number was issued, not where the caller is: people keep their numbers when they move, and caller ID can be set to show any number, which the FCC calls spoofing. If a call you did not expect asks for money or personal details, the FCC advises hanging up and calling the company back on a number you look up yourself. Unwanted calls can be reported to the FTC at ReportFraud.ftc.gov.

Places in area code 513

The 20 places with a telephone rate centre of their own using 513, largest first. Each links to its ZIP codes.

Places in area code 513
PlaceZIP codesPopulation
Cincinnati, OH 71 311,224
Hamilton, OH 4 63,468
Middletown, OH 2 51,617
Mason, OH 1 35,509
Oxford, OH 1 21,753
Lebanon, OH 1 21,501
Monroe, OH 1 15,401
Trenton, OH 1 13,583
Harrison, OH 1 13,084
South Lebanon, OH 1 6,712
Waynesville, OH 1 2,777
Bethel, OH 1 2,658
Williamsburg, OH 1 2,608
Morrow, OH 1 2,523
Newtonsville, OH 1 787
Felicity, OH 1 465
Seven Mile, OH 1 463
Fayetteville, OH 1 324
Butlerville, OH — 178
Shandon, OH 1 —

Nearby places using 513

These places have no rate centre of their own in NANPA's records; the nearest one uses 513. Near an area-code boundary that can be wrong for part of a town.

ZIP codes in area code 513

120 ZIP codes in 46 towns, by the town each is mailed to, largest first. Each links to its own page.

Where 513 numbers are issued

NANPA's rate centres with the most 513 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.

Rate centres using area code 513
Rate centrePlacePrefixes
CINCINNATI Cincinnati 502
HAMILTON Hamilton 55
MIDDLETOWN Middletown 38
LTL MIAMI — 32
MASON Mason 21
CLERMONT — 20

Counties

The counties of its ZIP codes, most residents first, with how many of its ZIP codes each has.

Which code covers where you are now? What area code am I in? answers from your location.

Questions about area code 513

Where is area code 513?

Area code 513 is in Ohio. It covers Cincinnati, Hamilton, Middletown and 120 other places: 120 ZIP codes in Hamilton, Butler, Clermont and 2 other counties.

What ZIP codes are in area code 513?

120 ZIP codes, by the town each is mailed to: Cincinnati (71, 45201 to 45999), Hamilton (4, 45011 to 45015), Middletown (2, 45042 to 45044), Mason (45040) and 42 more towns. The full list is on this page.

What time zone is area code 513 in?

Eastern time.

Is a 513 number a mobile or a landline?

It can be either. 37% of 513 numbers are assigned to mobile carriers and 34% to local phone companies (NANPA, 2026-10-10); the rest are with cable, internet-calling, business and paging carriers. A number keeps its area code when it moves to another carrier.

What area codes overlay 513?

283. They cover the same area as 513, so a new number there can be given any of them.

Does a 513 number mean the caller is in Ohio?

Not necessarily. An area code says where the number was first issued. People keep their numbers when they move or switch carriers, and calling software can show any number, so a 513 call can come from anywhere.

Other area codes in Ohio

All 15 Ohio area codes, by area, with the cities each covers

Source: NANPA NPA database, central office code and thousands-block assignments, 2026-10-10. Places are matched to NANPA's rate centres by name; see sources.

Cite this page

zipcodes.pro. “Area code 513.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/513

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