Clayton, IN — rate center

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

State
Indiana
Area codes
317, 463
Active prefixes
3
Carriers
3
Pooled prefixes
3
LATA
336
Metro area
(Indianapolis-Carmel-Anderson, IN Metropolitan Staistical Area)

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

NANPA records show 3 active prefixes here, held by 3 different carriers. Pooling applies to 3 of them — individual thousands-blocks may belong to different companies.

The rate center belongs to the (Indianapolis-Carmel-Anderson, IN Metropolitan Staistical Area). Routing-wise it sits in LATA 336.

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

Clayton is a small rate center: 3 prefixes across 3 carriers serve it. Small localities like this often keep the same blocks for decades, so the prefix-to-place mapping tends to be stable.

As always with US numbering: a prefix anchored to Clayton 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 Clayton

Prefixes anchored to the Clayton rate center
PrefixCode holderPooled
317-539 COMMUNICATIONS CORP. OF INDIANA Yes

FAQ

What area code is Clayton, IN?

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

How many prefixes does Clayton have?

3 active NXX prefixes are anchored to this rate center in NANPA records, held by 3 carriers.

Is a call from a Clayton prefix really from Clayton?

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