Shelbyville, IN — rate center

NANPA rate center & CO code data, current as of July 28, 2026.

State
Indiana
Area codes
317, 463
Active prefixes
17
Carriers
10
Pooled prefixes
14
LATA
336
Metro area
Indianapolis-Carmel-Greenwood, IN MSA

The Shelbyville rate center (Indiana) anchors 17 active prefixes under area codes 317, 463. Rate centers, not city limits, are what phone numbers are legally tied to.

17 central-office prefixes are currently anchored to this rate center across 10 carriers. 14 prefixes participate in thousands-block pooling, so blocks of 1,000 numbers are shared between carriers.

The rate center belongs to the Indianapolis-Carmel-Greenwood, IN Metropolitan Statistical Area. Routing-wise it sits in LATA 336.

Multiple area codes over one rate center (317/463) is the overlay pattern: same geography, different first three digits.

Treat this data as geography of the number, not of the caller: porting, VoIP and caller-ID spoofing all detach the two. When a call matters, hang up and call back through an official number.

Prefixes anchored to Shelbyville

Prefixes anchored to the Shelbyville rate center
PrefixCode holderPooled
317-364 NEW CINGULAR WIRELESS PCS, LLC - IL Yes
317-392 INDIANA BELL TEL CO INC No
317-395 LEVEL 3 TELECOM OF INDIANA, LP - IN Yes
317-398 INDIANA BELL TEL CO INC No
317-401 METROPCS, INC. Yes
317-421 INDIANA BELL TEL CO INC Yes
317-512 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN No
317-604 NEW CINGULAR WIRELESS PCS, LLC - IL Yes
317-642 PAETEC ITEL, LLC Yes
317-680 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN Yes
317-699 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN Yes
317-825 LEVEL 3 COMMUNICATIONS, LLC - IN Yes

FAQ

What area code is Shelbyville, IN?

Shelbyville is served by 2 area codes — 317, 463 — which overlay the same territory.

How many prefixes does Shelbyville have?

17 active NXX prefixes are anchored to this rate center in NANPA records, held by 10 carriers.

Is a call from a Shelbyville prefix really from Shelbyville?

Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.