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From Wikipedia, the free encyclopedia

517734226 / 519260765812 / 930859606304 / 681814724419 / 567440216440330 / 234937/326513614740
The regions shown in blue are in Ohio.

Area code 513 is a telephone area code in the North American Numbering Plan (NANP) for the southwest of the U.S. state of Ohio, including Cincinnati and surrounding cities, such as Forest Park, Hamilton, Lebanon, West Chester, Mason, Maineville, Middletown, Milford, Norwood, Oxford, Harrison, Cleves, Miamitown, and Trenton.

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  • Area code 513

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History

The four original numbering plan areas of Ohio
The four original numbering plan areas of Ohio

The original formulation of a nationwide telephone numbering plan in 1947 divided Ohio into four numbering plan areas (NPAs), one for each geographic quadrant of the state. AT&T assigned the area code 513 to the southwestern quadrant, which included Cincinnati and Dayton.

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.[1] This made 513 largely coextensive with the Cincinnati metropolitan area, though a few outer eastern suburbs transferred to 937.[2]

In 2000, area code 283 was reserved for numbering plan area 513 to create an overlay plan. 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.[3] Projections showed no need for an overlay code in Cincinnati until at least 2023.[4] Until 2021, this made Cincinnati one of the largest cities where seven-digit dialing was still possible.

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.[5][6]

On December 15, 2021, the Public Utilities Commission of Ohio approved the 283 area code as an overlay to the 513 area code, which was projected to be exhausted by the fourth quarter of 2023.[7]

References

  1. ^ "Hamilton County | PhoneNumbers.org". ohio.phonenumbers.org. Retrieved 2021-03-31.
  2. ^ "NANPA : Number Resources - NPA (Area) Codes". www.nationalnanpa.com. Retrieved 2021-03-31.
  3. ^ Pending Area Code Exhausts Archived September 29, 2006, at the Wayback Machine. The Public Utilities Commission of Ohio. October 2006.
  4. ^ https://www.nationalnanpa.com/reports/October%202021%20NPA%20Exhaust%20Analysis.pdf
  5. ^ "Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Hotline)" (PDF). North American Numbering Plan Administrator. January 8, 2021. Retrieved March 9, 2021.
  6. ^ DeLetter, Emily (October 18, 2021). "Cincinnati, NKY will have to dial an area code starting Sunday". The Cincinnati Enquirer. Retrieved December 16, 2021.
  7. ^ DeLetter, Emily (December 16, 2021). "Southwest Ohio's 513 area code is almost out of numbers, adding 283". The Cincinnati Enquirer. Retrieved December 16, 2021.

External links

Ohio area codes: 216, 330/234, 419/567, 440, 513, 614/380, 740/220, 937/326
North: 937/326
West: 812/930, 765 area code 513 East: 937/326
South: 859, 606
Indiana area codes: 219, 260, 317/463, 574, 765, 812/930
Kentucky area codes: 270/364, 502, 606, 859

This page was last edited on 20 December 2021, at 17:25
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