Area code 513 is a telephone

area code A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, rea ...

in the

North American Numbering Plan The North American Numbering Plan (NANP) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1 and has the international callin ...

(NANP) for the southwest of the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sover ...

Ohio Ohio () is a state in the Midwestern region of the United States. Of the fifty U.S. states, it is the 34th-largest by area, and with a population of nearly 11.8 million, is the seventh-most populous and tenth-most densely populated. The sta ...

, including

Cincinnati Cincinnati ( ) is a city in the U.S. state of Ohio and the county seat of Hamilton County. Settled in 1788, the city is located at the northern side of the confluence of the Licking and Ohio rivers, the latter of which marks the state line wit ...

and surrounding cities, such as

Forest Park A forest park is a park whose main theme is its forest of trees. Forest parks are found both in the mountains and in the urban environment. Examples Chile * Forest Park, Santiago China *Gongqing Forest Park, Shanghai * Mufushan National Fores ...

Hamilton Hamilton may refer to: People * Hamilton (name), a common British surname and occasional given name, usually of Scottish origin, including a list of persons with the surname ** The Duke of Hamilton, the premier peer of Scotland ** Lord Hamilt ...

Lebanon Lebanon ( , ar, لُبْنَان, translit=lubnān, ), officially the Republic of Lebanon () or the Lebanese Republic, is a country in Western Asia. It is located between Syria to the north and east and Israel to the south, while Cyprus li ...

, West Chester, Mason, Maineville, Middletown,

Milford Milford may refer to: Place names Canada * Milford (Annapolis), Nova Scotia * Milford (Halifax), Nova Scotia * Milford, Ontario England * Milford, Derbyshire * Milford, Devon, a place in Devon * Milford on Sea, Hampshire * Milford, Shro ...

, Norwood,

Oxford Oxford () is a city in England. It is the county town and only city of Oxfordshire. In 2020, its population was estimated at 151,584. It is north-west of London, south-east of Birmingham and north-east of Bristol. The city is home to the ...

Harrison Harrison may refer to: People * Harrison (name) * Harrison family of Virginia, United States Places In Australia: * Harrison, Australian Capital Territory, suburb in the Canberra district of Gungahlin In Canada: * Inukjuak, Quebec, or " ...

Cleves Kleve (; traditional en, Cleves ; nl, Kleef; french: Clèves; es, Cléveris; la, Clivia; Low Rhenish: ''Kleff'') is a town in the Lower Rhine region of northwestern Germany near the Dutch border and the River Rhine. From the 11th century ...

, Miamitown and Trenton.

History

The first nationwide telephone numbering plan of 1947 divided Ohio into four numbering plan areas (NPAs), forming a quadrant layout for telecommunication services in the state.

AT&T AT&T Inc. is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the world's largest telecommunications company by revenue and the third largest provider of mobile tel ...

assigned area code 513 to the southwestern quadrant, which included Cincinnati and

Dayton Dayton () is the sixth-largest city in the U.S. state of Ohio and the county seat of Montgomery County. A small part of the city extends into Greene County. The 2020 U.S. census estimate put the city population at 137,644, while Greater Da ...

. Due to the proliferation of cell phones and pagers in the 1990s, the numbering plan area had to be split in 1996 to provide more central office prefixes and telephone numbers. The eastern and northern portions, including Dayton, received

area code 937 Area codes 937 and 326 are telephone area codes in the North American Numbering Plan (NANP) assigned to a numbering plan area (NPA) that encompasses much of the southwestern part of the U.S. state of Ohio, including Dayton and Springfield. Area ...

. This made 513 largely coextensive with the Cincinnati metropolitan area, though a few outer eastern suburbs transferred to 937. In 2000, area code 283 was reserved for numbering plan area 513 to create an

overlay plan Overlay may refer to: Computers *Overlay network, a computer network which is built on top of another network *Hardware overlay, one type of video overlay that uses memory dedicated to the application *Another term for exec, replacing one process ...

. Although permissive dialing began on January 15, 2001, the implementation was suspended, because of the economic downturn and the return of telephone numbers as a result of the abandonment of service by competitive local telephone companies. Projections showed no need for an overlay code in Cincinnati until at least 2023. Prior to October 2021, area code 513 had telephone numbers assigned for the

central office code The North American Numbering Plan (NANP) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1 and has the international calling ...

988. In 2020, ''988'' was designated nationwide as a dialing code for the

National Suicide Prevention Lifeline The 988 Suicide & Crisis Lifeline (formerly known as the National Suicide Prevention Lifeline) is a United States-based suicide prevention network of over 200+ crisis centers that provides 24/7 service via a toll-free hotline with the number 9- ...

, which created a conflict for exchanges that permit

seven-digit dialing Seven-digit dialing is a telephone dialing procedure customary in some territories of the North American Numbering Plan (NANP) for dialing telephone numbers in the same numbering plan area (NPA). NANP telephone numbers consist of ten digits, of wh ...

. This area code, along with the neighboring

area code 859 Area code 859 serves the city of Lexington and the central portion of the Commonwealth of Kentucky. It was created in a split from area code 606 in 1999. Its service area encompasses the following Kentucky counties (the boundary closely, but n ...

, therefore transitioned to

ten-digit dialing Ten-digit dialing is a telephone dialing procedure in the countries and territories that are members of the North American Numbering Plan (NANP). It is the practice of including the area code of a telephone number when dialing to initiate a telep ...

on October 24, 2021. NANP projections indicated exhaustion of central office prefixes in 513 by the fourth quarter of 2023. For relief, on December 15, 2021, the

Public Utilities Commission of Ohio The Public Utilities Commission of Ohio (PUCO) is the public utilities commission of the U.S. state of Ohio, charged with the regulation of utility service providers such as those of electricity, natural gas, and telecommunications as well as railr ...

approved an all-service

for the numbering plan area with the new area code 283, scheduled for operation on April 28, 2023.

References

External links

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513 __NOTOC__ Year 513 ( DXIII) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Probus and Clementinus (or, less frequently, year 1266 ...

Telecommunications-related introductions in 1947