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Area codes 513 and 283 are telephone
The first nationwide telephone numbering plan of 1947 divided telecommunications services in Ohio into four numbering plan areas (NPAs), one for each quadrant of the state.
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 ...
s 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 of 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
Mason may refer to:
Occupations
* Mason, brick mason, or bricklayer, a craftsman who lays bricks to construct brickwork, or who lays any combination of stones, bricks, cinder blocks, or similar pieces
* Stone mason, a craftsman in the stone-cut ...
, 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, 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 telecommunications services in Ohio into four numbering plan areas (NPAs), one for each quadrant of 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 as an overlay
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 ...
code for numbering plan area 513. 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 988. In 2020, 988 was designated nationwide as a dialing code for the National Suicide Prevention Lifeline, which created a conflict for exchanges that permit seven-digit dialing. This area code, along with the neighboring area code 859, therefore transitioned to ten-digit dialing on October 24, 2021.
, 195 (32.4%) of the 602 forecasted number blocks (of 1,000 each) for area code 513 had been assigned. 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 approved an all-service overlay complex for the numbering plan area with the new area code 283. Area code 283 became available to carriers on April 28, 2023, after they exhausted any remaining blocks in the 513 area code.
, the two area codes combined are projected to avoid exhaustion for the foreseeable future.
See also
*List of Ohio area codes
This is a list of area codes in the state of Ohio with establishment dates.
Background
When the first area code plan was introduced in 1947, the state was given area codes 216, 419, 513, and 614. In 1996, 330 and 937 were added as splits. In 19 ...
*List of North American Numbering Plan area codes
The North American Numbering Plan (NANP) divides the territories of its members into geographic numbering plan areas (NPAs). Each NPA is identified by one or more numbering plan area codes (''NPA codes'', or ''area codes''), consisting of three di ...
References
External links
{{coord, 39, 15, N, 84, 30, W, display=title513
__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 ...
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