Indianapolis, IN Area Codes

Area codes serving Indianapolis

Indianapolis sits in Indiana, part of the Midwest region and the Eastern Time zone. Its numbers are spread across an overlay of 2 codes that all cover the same ground: 317, 463.

The original code is 317 (in service since 1947). As the area ran low on numbers, regulators added overlay codes on top instead of splitting the city, so longtime residents kept their numbers while new lines received a newer code.

Code	Area served	In service
317	Indianapolis and surrounding central Indiana suburbs	January 1, 1947
463	Indianapolis and surrounding central Indiana suburbs	November 15, 2016

Nearby cities sharing these area codes

• Carmel
• Fishers
• Noblesville
• Greenwood
• Lawrence
• Westfield
• Plainfield
• Brownsburg
• Avon
• Zionsville
• Franklin
• Greenfield
• Shelbyville

How to pick an area code for a new number

When you activate a new line in Indianapolis, the carrier assigns whichever code has numbers available — you usually can't choose. If a specific code matters to you (for example the prestige of 317), ask the carrier whether any blocks remain, or request a number transfer. All codes here dial identically and cost the same.

Dialing in Indianapolis

Because Indianapolis is an overlay area, 10-digit dialing is mandatory: always dial the area code plus the seven-digit number, even for a neighbor. See 10-digit dialing and overlay area codes for the background. For every code in Indiana, visit the Indiana area codes page.