🇺🇸 317 area code
Area code 317 covers Indianapolis, Carmel, Greenwood and Greenfield and the surrounding area in Indiana. It shares that territory with 463, so the same neighbourhood can have numbers in any of them. Enter a 317 number below for a free check before you call back.
- Location: Indianapolis, Indiana
- Time zone: Eastern (UTC−5)
- In service since 1947
Look up a number
Validity, carrier, line type, and region on the first pass.
Area code 317 at a glance
Cities in area code 317
- Indianapolis
- Carmel
- Greenwood
- Greenfield
- Noblesville
- Franklin
- Plainfield
- Westfield
- Brownsburg
- Danville
Is a 317 call a scam?
An area code tells you where a number was first assigned, not where the caller is. Mobile numbers keep their area code when people move, and internet (VoIP) numbers can be picked in any area code — so a 317 number can be calling from anywhere.
Robocallers exploit that with "neighbor spoofing": showing a 317 number to people in Indiana because a local-looking call is more likely to be answered. If a 317 call claims to be your bank, the IRS or a delivery company, hang up and call the official number yourself.
About area code 317
317 is one of the original North American area codes, created in 1947 when AT&T and the Bell System first divided the continent into numbering plan areas.
It is part of the 317/463 overlay: the codes cover the same area, and a new line there can be given a number in any of them. Two neighbours — or two phones in one household — can have different area codes. That is also why local calls need the full ten digits.
As the region grew, 463 and 765 were carved out of or added to 317.
Area codes
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FAQ
Area code 317 questions
Sources: NANPA NPA database (11/04/2026) and Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.
Where is area code 317?
Area code 317 is in Indiana, United States. It covers Indianapolis, Carmel, Greenwood, Greenfield, Noblesville and Franklin.
What time zone is area code 317?
317 is in the Eastern (UTC−5) time zone, and observes daylight saving time.
What area codes overlay 317?
463 serves the same area as 317. Numbers in all of them are local to one another.
When did area code 317 start?
317 entered service in 1947.
How do I find out who called me from 317?
Enter the full number in the lookup at the top of this page. The free check confirms whether the number is valid and shows its carrier, line type and region; a full report adds owner and public-web records where they are available.
Why am I getting calls from area code 317?
If you live in or near Indiana, they may be genuinely local — or robocalls spoofing a local-looking number. Unknown 317 callers who will not leave a message are best looked up before you call back.
Got a call from 317?
Run the free check first — validity, carrier, line type and region — and unlock the full report only if you need it.