Quick answer: The 931 area code covers Middle Tennessee — but not Nashville. It forms a horseshoe shape around the Nashville metro, anchored by Clarksville, Columbia, Cookeville, Shelbyville, and Tullahoma across roughly 28 counties. The entire region runs on Central Time (UTC-6, UTC-5 in summer). Nashville and Murfreesboro use 615 and 629 instead. 931 has no overlay yet — it operates on its own code today.
931 area code: your guide to Middle Tennessee
See a 931 number on your screen and you are looking at a call from Middle Tennessee — but not Nashville. That distinction trips up a lot of guides, so let us clear it up properly.
This post explains where the 931 area code actually reaches, which cities and counties it serves, what time zone callers are in, why some sources confuse it with Nashville, and how to get a 931 line for your own business.
Where is the 931 area code located?
The 931 area code serves a wide, horseshoe-shaped stretch of Middle Tennessee. It wraps around the Nashville metro without including it.
The Nashville exception
Here is the key fact most articles get wrong. Nashville and its immediate suburbs use 615 and 629 — not 931.
The 931 code covers almost all of Middle Tennessee except the Nashville metropolitan area. Murfreesboro, despite sitting in the region, also uses 615/629.
A horseshoe-shaped region
The code forms a rough horseshoe around the Nashville core, reaching from the Kentucky border in the north down toward the Alabama line in the south.
That shape covers a large rural and small-city footprint with a combined population of well over a million people.
Cities covered by the 931 area code
The 931 region is anchored by several mid-size Tennessee cities rather than one dominant metro.
Major cities
These are the population centers most associated with the code.
- Clarksville — the largest city in the 931 region
- Columbia
- Cookeville
- Shelbyville
- Tullahoma
What this means for local identity
Because no single big city dominates, a 931 number reads as broadly "Middle Tennessee" rather than one specific town.
For a business, that is useful — the code signals a regional presence across dozens of communities at once.
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Counties in the 931 area code
The code stretches across roughly 28 counties of Middle Tennessee. That breadth is why it covers so much ground.
A sample of the counties
The full list is long, but it includes well-known names across the region.
| County | County | County |
|---|---|---|
| Montgomery | Maury | Putnam |
| Robertson | Coffee | Cumberland |
| Bedford | Franklin | Warren |
| Lincoln | Giles | Lawrence |
Several smaller counties — Stewart, Houston, Humphreys, Perry, and others — round out the territory.
What time zone is the 931 area code in?
This matters for anyone scheduling calls into the region.
Central Time Zone
The 931 area code sits in the Central Time Zone (CT). That puts it one hour behind the Eastern Time Zone.
A small note: Tennessee as a state spans two time zones, so a handful of far-eastern counties statewide run on Eastern Time. The bulk of the 931 territory, though, is Central.
Why it matters for business
If your team is on the East Coast, a 9 a.m. call lands at 8 a.m. for a 931 customer. Build that gap into your outreach schedule.
Is a 931 number a scam?
A 931 number is a genuine Tennessee code, but like every code in the country, it gets spoofed.
Common scam patterns
Fraud callers fake a local 931 code so the call looks trustworthy. Reported pitches include fake car warranties, Social Security "account problems," and student loan offers.
Clarksville sees the largest share of spam reports within the region. A real call will never demand gift cards, wire transfers, or your government ID over the phone.
Staying protected
MCM routes calls with STIR/SHAKEN caller authentication, which verifies caller identity and helps cut spoofed traffic before it reaches legitimate business lines.
How to get a 931 area code number
You do not need a Tennessee office to use a Tennessee number. A virtual line handles it.
Who should consider one
A local code lifts answer rates and signals that you serve the area.
- Businesses expanding into Middle Tennessee markets
- Remote teams supporting Clarksville, Columbia, or Cookeville customers
- Sales teams that want calls to look local rather than out of state
Setting it up with MCM
Search available 931 numbers, choose one, and route it to any phone, softphone app, or call center. There is no hardware and no long install.
Want a local Middle Tennessee line today? Start a free trial with MCM and pick your 931 number — virtual lines activate the same day.
Quick reference: 931 at a glance
| Detail | Information |
|---|---|
| Region | Middle Tennessee (excludes Nashville metro) |
| State | Tennessee |
| Major cities | Clarksville, Columbia, Cookeville, Shelbyville, Tullahoma |
| Counties | Roughly 28, including Montgomery, Maury, Putnam |
| Time zone | Central (CT) |
| Nearby codes | 615, 629 (Nashville metro) |
Final word
The 931 code is Middle Tennessee's number — everywhere from Clarksville to Cookeville, but never Nashville itself. Keep that boundary straight and the rest of the picture falls into place.
If the region fits your customer base, a virtual 931 line is the quickest route to a local presence. Pick a number, point it at your team, and you are reachable across Middle Tennessee without a physical office there.
Browse 931 numbers and other US codes through MCM whenever you are ready.
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Frequently asked questions
Where is the 931 area code located?
The 931 area code covers most of Middle Tennessee in a horseshoe shape around — but not including — the Nashville metropolitan area. It sits in the Central Time Zone.
Is the 931 area code in Nashville?
No. Nashville and its suburbs use 615 and 629. The 931 code serves the surrounding Middle Tennessee region instead.
What major cities use the 931 area code?
Clarksville is the largest, followed by Columbia, Cookeville, Shelbyville, and Tullahoma, along with dozens of smaller communities.
What time zone is the 931 area code in?
The 931 region is in the Central Time Zone, one hour behind Eastern Time.
Is a call from a 931 number safe?
The code is legitimate, but scammers can spoof any area code. Be cautious with unexpected calls demanding payment or personal information and verify through a trusted number.
Can I get a 931 number if I do not live in Tennessee?
Yes. A virtual 931 number from a provider like MCM forwards to any phone or app, so you can have a Middle Tennessee line from anywhere.
Does the 931 area code have an overlay?
Not yet. The code currently operates on its own, though continued population growth may eventually require an additional code for the region.
Get a 931 number for your business
A Middle Tennessee presence used to mean opening an office in Clarksville or Cookeville. Now it's a few-minute signup.
My Country Mobile offers 931 virtual numbers with call forwarding, voicemail-to-email, SMS, and AI call transcription. Calls route to any device worldwide, and over 17,500 businesses already trust MCM with their virtual phone presence.
