Smithville, TN — rate center

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

In NANP numbering, Smithville, Tennessee is a rate center — the anchor point for local numbers. It is reached through 615, 629 (multiple area codes serve it).

The rate center currently carries 18 working prefixes, held by 3 different carriers. Pooling applies to 7 of them — individual thousands-blocks may belong to different companies.

The rate center belongs to the Nashville-Davidson--Murfreesboro--Franklin, TN Metropolitan Statistical Area. Routing-wise it sits in LATA 470.

Because 615, 629 all serve this territory, two Smithville numbers can look completely different while being neighbors — check the prefix, not just the area code.

A Smithville prefix on caller ID is a starting point, not proof of origin — numbers travel with their owners and displays can be spoofed. Use official callback numbers for anything sensitive.

Prefixes anchored to Smithville

FAQ

What area code is Smithville, TN?

Smithville is served by 2 area codes — 615, 629 — which overlay the same territory.

How many prefixes does Smithville have?

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

Is a call from a Smithville prefix really from Smithville?

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