Area codes 317 and 463

<p>Area codes 317 and 463 are telephone <a href="/facts/Area_code/jaryReDv">area codes</a> in the <a href="/facts/North_American_Numbering_Plan/0QQ8v3ph">North American Numbering Plan</a> (NANP) for <a href="/facts/Indianapolis/r8BQof9G">Indianapolis</a> and nine surrounding counties in central <a href="/facts/Indiana/VRnvjXoQ">Indiana</a>. The numbering plan area (NPA) comprises all or parts of <a href="/facts/Marion_County%2c_Indiana/CK8BKnEo">Marion</a>, <a href="/facts/Boone_County%2c_Indiana/efNDw5mH">Boone</a>, <a href="/facts/Hancock_County%2c_Indiana/oaeT06Ad">Hancock</a>, <a href="/facts/Hamilton_County%2c_Indiana/EPMfWF1y">Hamilton</a>, <a href="/facts/Hendricks_County%2c_Indiana/udfdHBNV">Hendricks</a>, <a href="/facts/Johnson_County%2c_Indiana/Bj4EARop">Johnson</a>, <a href="/facts/Madison_County%2c_Indiana/jTAkH3zB">Madison</a>, <a href="/facts/Morgan_County%2c_Indiana/Fm6GY83D">Morgan</a>, and <a href="/facts/Shelby_County%2c_Indiana/Pcs7KH1C">Shelby</a> counties. 317 is the original area code of the NPA, created in 1947, while 463 is an <a href="/facts/Overlay_plan/faRNxFIj">overlay code</a> for the same area that was added in 2016, making <a href="/facts/Ten-digit_dialing/22AY5qgI">ten-digit dialing</a> mandatory for all calls in the region.
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Area codes 317 and 463 open-in-new

Area codes 317 and 463