Prefix 317-717 — Indianapolis, IN

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

Area code
317
Prefix (NXX)
717
Rate center
Indianapolis
State
Indiana
Time zone
Eastern
Code holder
OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC
OCN
2964
Pooled
Yes (thousands-block pooling)
Assigned
2005-12-16
LATA
336

317-717 identifies a block of numbers in Indianapolis, IN, within the 317 area code. Every US prefix is tied to exactly one rate center; this one is Indianapolis.

The rate center lies in the Indianapolis-Carmel-Greenwood, IN Metropolitan Statistical Area. The serving LATA is 336. Local time follows the Eastern zone.

Treat the on-screen number as a hint, not evidence — 317-717 can be spoofed like any US prefix. If a call feels off, verify through an official callback number and file a complaint with the FCC or FTC.

Code-holder of record: OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (OCN 2964), assigned December 16, 2005. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 317-717 numbers may be served by different companies.

Neighboring prefixes

Prefixes adjacent to 317-717
PrefixRate centerCode holder
317-714 Indianapolis METROPCS, INC.
317-715 Indianapolis LEVEL 3 TELECOM OF INDIANA, LP - IN
317-716 Indianapolis OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC
317-718 Danville INDIANA BELL TEL CO INC
317-719 Indianapolis CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN
317-720 Fairland OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC

FAQ

Where is 317-717 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 317-717 numbers?

OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 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 317-717 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.