Franklin, IN — rate center

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

State
Indiana
Area codes
317, 463
Active prefixes
16
Carriers
6
Pooled prefixes
13
LATA
336
Metro area
Indianapolis-Carmel-Greenwood, IN MSA

Phone numbers "from Franklin" are, precisely speaking, numbers whose prefixes are anchored to the Franklin rate center of Indiana, under 317, 463.

NANPA records show 16 active prefixes here across 6 carriers. 13 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.

As always with US numbering: a prefix anchored to Franklin tells you where the block was issued. The person calling may have ported the number, moved away, or be spoofing it entirely — verify callers through independently found contact details.

Prefixes anchored to Franklin

Prefixes anchored to the Franklin rate center
PrefixCode holderPooled
317-206 ONVOY SPECTRUM, LLC Yes
317-346 BRIGHTSPEED OF INDIANA, LLC No
317-412 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN Yes
317-474 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN Yes
317-494 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN Yes
317-560 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN Yes
317-668 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC Yes
317-736 BRIGHTSPEED OF INDIANA, LLC No
317-738 BRIGHTSPEED OF INDIANA, LLC No
317-739 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN Yes
317-812 ONVOY, LLC - IN Yes
317-868 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN Yes

FAQ

What area code is Franklin, IN?

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

How many prefixes does Franklin have?

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

Is a call from a Franklin prefix really from Franklin?

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