Prefix 317-559 — Indianapolis, IN

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

Area code
317
Prefix (NXX)
559
Rate center
Indianapolis
State
Indiana
Time zone
Eastern
Code holder
PEERLESS NETWORK OF INDIANA, LLC - IN
OCN
279F
Pooled
Yes (thousands-block pooling)
Assigned
2010-06-03
LATA
336

317-559 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 — 317-559 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: PEERLESS NETWORK OF INDIANA, LLC - IN (OCN 279F), assigned June 3, 2010. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 317-559 numbers may be served by different companies.

Neighboring prefixes

Prefixes adjacent to 317-559
PrefixRate centerCode holder
317-556 Indianapolis NEW CINGULAR WIRELESS PCS, LLC - IL
317-557 Indianapolis METROPCS, INC.
317-558 Fishers TELEPORT COMMUNICATIONS AMERICA, LLC - IN
317-560 Franklin CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN
317-561 Plainfield TELEPORT COMMUNICATIONS AMERICA, LLC - IN
317-562 Indianapolis INDIANA BELL TEL CO INC

FAQ

Where is 317-559 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 317-559 numbers?

PEERLESS NETWORK OF INDIANA, LLC - 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 317-559 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.