Sheridan, IN — rate center

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

State
Indiana
Area codes
317, 463
Active prefixes
6
Carriers
4
Pooled prefixes
6
LATA
336
Metro area
Indianapolis-Carmel-Greenwood, IN MSA

In NANP numbering, Sheridan, Indiana is a rate center — the anchor point for local numbers. It is reached through 317, 463 (multiple area codes serve it).

6 central-office prefixes are currently anchored to this rate center, held by 4 different carriers. Pooling applies to 6 of them — individual thousands-blocks may belong to different companies.

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

Because 317, 463 all serve this territory, two Sheridan numbers can look completely different while being neighbors — check the prefix, not just the area code.

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 Sheridan

Prefixes anchored to the Sheridan rate center
PrefixCode holderPooled
317-647 AT&T ENTERPRISES, LLC Yes
317-758 INDIANA BELL TEL CO INC Yes
317-836 LEVEL 3 COMMUNICATIONS, LLC - IN Yes

FAQ

What area code is Sheridan, IN?

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

How many prefixes does Sheridan have?

6 active NXX prefixes are anchored to this rate center in NANPA records, held by 4 carriers.

Is a call from a Sheridan prefix really from Sheridan?

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