Prefix 317-363 — Indianapolis, IN

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

Area code
317
Prefix (NXX)
363
Rate center
Indianapolis
State
Indiana
Time zone
Eastern
Code holder
NEW CINGULAR WIRELESS PCS, LLC - IL
OCN
6534
Pooled
Yes (thousands-block pooling)
Assigned
2003-06-04
LATA
336

A phone number starting 317-363 was issued in the Indianapolis rate center of IN — part of area code 317.

Code-holder of record: NEW CINGULAR WIRELESS PCS, LLC - IL (OCN 6534), assigned June 4, 2003. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 317-363 numbers may be served by different companies.

A scammer can display 317-363 without ever touching IN. When in doubt, end the call and reach the company or agency through its official website; unwanted robocalls belong in the FTC's fraud report queue.

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.

Neighboring prefixes

Prefixes adjacent to 317-363
PrefixRate centerCode holder
317-360 Greenwood BANDWIDTH.COM CLEC, LLC - IN
317-361 Indianapolis NEW CINGULAR WIRELESS PCS, LLC - IL
317-362 Indianapolis COMCAST IP PHONE, LLC
317-364 Shelbyville NEW CINGULAR WIRELESS PCS, LLC - IL
317-365 Greenwood NEW CINGULAR WIRELESS PCS, LLC - IL
317-366 Indianapolis OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC

FAQ

Where is 317-363 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 317-363 numbers?

NEW CINGULAR WIRELESS PCS, LLC - IL 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 317-363 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.