Area codes 317 and 463

Approximate service area of Area Code 317 is in red.

Area code 317 is a North American Numbering Plan area code for central Indiana. It serves most of the Indianapolis metropolitan area, including Indianapolis itself and Marion County and all or part of Boone, Hancock, Hamilton, Hendricks, Johnson, Madison, Morgan, and Shelby counties. In October 2016, area code 463 will begin service as an overlay to 317.

History

317 was one of the original area codes introduced in 1947. It originally covered the northern two-thirds of Indiana, while area code 812 served southern Indiana. In the first split of the area code system since its 1947 inception, northern Indiana received 219 the following year. Despite Indianapolis's rapid growth and increased number demand, no further changes were made to 317 until February 1, 1997, when most of the old 317 territory outside of the Indianapolis area switched to 765. As a result, 317 is the only one of Indiana's six area codes that does not border another state.

The number pool for 317 was expected to exhaust in 2017. The Indiana Regulatory Commission announced that overlay area code 463 will be installed in 2016. The new area code, which coincidentally also spells out IND, will be assigned to new customers only, making 317 the second area to be overlaid in Indiana after 812 was overlaid with 930 in March 2015.

See also

• List of NANP area codes

External links

• NANPA Area Code Map of Indiana
• List of exchanges from AreaCodeDownload.com, 317 Area Code

Indiana area codes: 219, 260, 317, 574, 765, 812/930
	North: 765
West: 765	Area code 317 and 463	East: 765
	South: 812 and 930