AI Receptionist with
317 Area Code
for Indianapolis Businesses

The 317 area code serves Indianapolis and Central Indiana in the Eastern Time Zone. It was created in 1947 and now overlays with 463 to meet growing demand.

The 317 area code has been a cornerstone of Indiana's telecommunications infrastructure since its establishment in 1947 as part of the original North American Numbering Plan. Originally covering a much larger portion of central Indiana, the area code served the region's growing population and expanding business community for five decades. As Indianapolis and its surrounding suburbs experienced significant growth in the 1990s, the demand for phone numbers necessitated a split. In 1997, area code 765 was created to serve the outer ring of central Indiana, including cities like Muncie, Lafayette, and Anderson, while 317 retained the Indianapolis metropolitan area. The region's continued economic expansion, particularly in technology, healthcare, and logistics sectors, led to the introduction of overlay code 463 in 2016. This overlay ensured that new phone numbers could be assigned without requiring existing customers to change their numbers. The transition to mandatory 10-digit dialing in 2021 marked another milestone, standardizing calling procedures across the overlapping 317 and 463 area codes. Today, the 317/463 region represents one of Indiana's most dynamic economic hubs, with a diverse population and thriving business environment.