North Spring Hill, TN — rate center

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

North Spring Hill is a telephone rate center in Tennessee served by area codes 615, 629. A rate center is the locality the phone industry uses to anchor numbers for billing; every prefix listed below is registered here.

5 central-office prefixes are currently anchored to this rate center, held by 4 different carriers. Pooling applies to 5 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 North Spring Hill numbers can look completely different while being neighbors — check the prefix, not just the area code.

North Spring Hill is a small rate center: 5 prefixes across 4 carriers serve it. Small localities like this often keep the same blocks for decades, so the prefix-to-place mapping tends to be stable.

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 North Spring Hill

FAQ

What area code is North Spring Hill, TN?

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

How many prefixes does North Spring Hill have?

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

Is a call from a North Spring Hill prefix really from North Spring Hill?

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