Area codes in Indianapolis, Indiana
Indianapolis, Indiana uses 2 area codes — 317 and 463. The main Indianapolis area code is 317.
Area codes serving Indianapolis
Phone numbers in Indianapolis are written as ten digits — for example (317) 555-0190 — and fall in the Eastern Time zone.
How Indianapolis came to have 2 area codes
The original Indianapolis area code is 317, in service since 1947. As the area ran low on available numbers, an overlay code was added over the same region for new phone lines: 463 (2016). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Indianapolis now uses all 2 codes and every local call is dialed with ten digits.
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Nearby cities
- Carmel area codes
- Greenwood area codes
- Anderson area codes
- Kokomo area codes
- Muncie area codes
- West Lafayette area codes
- Terre Haute area codes
- Oxford area codes
More cities in Indiana
- Fort Wayne area codes
- South Bend area codes
- Evansville area codes
- Gary area codes
- Hammond area codes
- Elkhart area codes
- New Albany area codes
- Valparaiso area codes
Frequently asked questions
What is the area code for Indianapolis?
The main area code for Indianapolis, Indiana is 317. Indianapolis is now served by 2 area codes in total: 317, 463.
How many area codes does Indianapolis have?
Indianapolis has 2 area codes: 317, 463.
Why does Indianapolis have more than one area code?
As Indianapolis used up the numbers available in its original area code (317, in service since 1947), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.
How do you dial a Indianapolis number?
Dial all 10 digits — the area code (317 or 463) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.