931 area code — Clarksville, TN geographic

Data: NANPA public reports, current as of July 28, 2026.

Area code 931 is a geographic code serving Clarksville, Tennessee in the Eastern and Central time zone. It has been in service since September 15, 1997. Because of number portability and VoIP, the area code tells you where the number was issued, not where the caller is right now.

NANPA lists 533 active NXX prefixes in 931, assigned to 41 carriers. 385 of those prefixes are pooled — shared between carriers in thousands-number blocks. The code spans 100 rate centers (billing localities).

Its parent code is 615, which it left in 1997.

Official projections put exhaust at 2Q 2051.

Unusually, 931 spans two time zones (Eastern and Central). When returning a call, check which part of Tennessee the prefix belongs to — the difference is a full hour.

The dialing plan is 7D for home-NPA local calls and 7D across codes.

Worth noting: 931 is covers more rate centers (100) than any other Tennessee area code; it is also one of the few NANP area codes whose territory spans two time zones.

Use this page to decode where 931 numbers come from — and remember that spoofing means the screen can lie about everything except your own caution.

Largest localities in 931

FAQ

Where is a 931 number from?

931 is assigned to Clarksville and surrounding areas of Tennessee in the Eastern and Central time zone. The three digits after the area code (the prefix) narrow it down to a rate center.

Is 931 a toll-free number?

No. 931 is a geographic code; calls are billed like any other domestic call. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.

Will 931 run out of numbers?

NANPA's current forecast projects exhaust in 2Q 2051 — decades of capacity remain.

Why am I getting spam calls from 931 numbers?

Scammers spoof recognizable area codes so calls look local or familiar. A displayed 931 number does not prove the call originated there — see our guide to spotting spoofed calls.