Prefix 317-617 — Indianapolis, IN

NANPA CO code assignment, current as of July 28, 2026.

The 317-617 prefix belongs to area code 317 and is anchored to the Indianapolis rate center (IN). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.

Indianapolis is part of the Indianapolis-Carmel-Greenwood, IN Metropolitan Statistical Area. For routing purposes it sits in LATA 336. Numbers here keep Eastern time.

NANPA's central-office code records list CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN (OCN 6725) as the code holder, assigned January 30, 2012. Because 317-617 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

Caller ID showing 317-617 is not proof the call came from Indianapolis: spoofing and porting both detach numbers from their origin. To verify a caller, hang up and dial the organization's published number, and report suspicious calls to the FTC.

Neighboring prefixes

FAQ

Where is 317-617 located?

The prefix is assigned to the Indianapolis rate center in IN, area code 317. It is part of the Indianapolis-Carmel-Greenwood, IN Metropolitan Statistical Area.

Which company owns 317-617 numbers?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN holds the code, but the prefix is pooled — individual thousands-blocks can be assigned to other carriers, and numbers may be ported to any provider.

Is a call from 317-617 safe to answer?

The prefix itself says nothing about the caller. Legitimate Indianapolis businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.