931 Area Code: Clarksville, Tennessee
Area code 931 serves Clarksville, Cookeville and Columbia, Tennessee in the Eastern and Central time zone, in service since 1997. Consumers have filed 3,081 unwanted-call complaints against 2,729 different 931 numbers, 492 of them with the FTC in the last 30 days. Look up the exact number that called you below.
Area code 931 at a glance
- State
- Tennessee
- Main cities
- Clarksville, Cookeville, Columbia, Shelbyville, Crossville, Tullahoma + 91 more
- Counties
- Montgomery County, Maury County, Putnam County, Coffee County + 28 more
- Local time
- —Eastern—Central
- In service since
- September 15, 1997
- Split from
- 615
- Local dialing
- 7 digits allowed
- Exchanges
- 100 rate centers, 538 prefixes
Sources: NANPA area code and central office code records (refreshed weekly); cities and counties matched from US Census Bureau and USGS place names.
Reported 931 numbers
No single 931 number has enough complaints yet for a full report page, so none are listed. Look up the exact number that called you: the lookup works on every US number, whether or not it has complaint history.
What calls from 931 numbers are about
1,698 FTC Do Not Call complaints about 931 numbers since Jul 24. The most common named subject is medical & prescriptions, at 14% of complaints (68% of those were recorded messages). Overall, 68% of callers who answered said the call was a robocall.
FTC complaint subjects
- Other / unspecified74444%
- Medical & prescriptions23214%
- Impostor (government, business, family)20212%
- Debt reduction18711%
- No subject given1358%
- Dropped call / no message1298%
- Warranties & protection plans201%
FCC complaints by call type, last 2 years
- Prerecorded Voice10855%
- Live Voice6935%
- Text Message189%
Live-voice calls are from a person; prerecorded calls are robocalls.
When 931 spam calls come in
32% of complaints that give a call time describe calls between 9am and 12pm. 94% came Monday to Friday, most on Wednesdays, the pattern of call-center robocall campaigns that run on business hours. Times are as consumers reported them to the FTC.
By hour of the day
By day of the week
Is it getting worse?
488 FTC complaints about 931 numbers in the last four weeks, down 16% on the four weeks before. FCC complaints about 931 numbers peaked in 2017 (203); the FTC's daily Do Not Call data has carried most of the volume since mid-2026.
FTC complaints per week
FCC complaints per year
Years shown as '15 to '26; the current year is partial.
Who gets these calls
71% of the FTC complaints about 931 numbers came from people whose own phone number also starts with 931, and 77% from Tennessee. Calls that look local to the person receiving them are the signature of neighbor spoofing: robocallers display a number from your own area code because you're more likely to answer.
Where complainants live
- Tennessee1,30577%
- California392%
- Florida342%
- Texas292%
- New York251%
What people with 931 numbers report
People whose own number starts with 931 filed 2,044 FTC complaints since Jul 24. 59% were about calls showing another 931 number. The most common named subject was debt-relief pitches.
Area codes on the calls they reported
- 931 (same code)1,20659%
- 833 (toll-free)653%
- 615422%
- 423402%
- 888 (toll-free)322%
Busiest 931 prefixes this month
FTC complaints in the last 30 days, grouped by the first six digits. When one prefix collects complaints about many different numbers, a campaign is usually cycling through that block. The carrier is who NANPA assigned the prefix to, not who made the calls.
| Prefix | Complaints | Numbers | Carrier | Exchange |
|---|---|---|---|---|
| (931) 250-xxxx | 17 | 17 | Verizon Wireless (Cellco Partnership) | Crossville |
| (931) 440-xxxx | 11 | 10 | Onvoy (Sinch) | Clarksville |
| (931) 788-xxxx | 10 | 10 | Frontier Communications | Tansi |
| (931) 544-xxxx | 10 | 8 | UScellular | Cookeville |
| (931) 271-xxxx | 9 | 8 | Teleport Communications America, LLC | McMinnville |
Carriers operating in 931
NANPA has assigned 538 931 prefixes (NPA-NXX central-office codes) across 100 rate centers: 33% to wireless carriers, 66% to landline and VoIP operators; 72% are pooled blocks shared by several carriers. 9 prefixes were assigned in the last 12 months (newest 2026-09-21). The carrier holding a prefix is who the number was issued through. It says nothing about who is calling, since caller ID is routinely spoofed.
| Carrier | Type | Prefixes | Rate centers | Newest assignment |
|---|---|---|---|---|
| BellSouth (AT&T) | Incumbent landline (ILEC) | 79(15%) | 41 | 2011-10-18 |
| Verizon Wireless (Cellco Partnership) | Wireless | 72(13%) | 24 | 2025-06-20 |
| AT&T Mobility (New Cingular Wireless PCS) | Wireless | 53(10%) | 29 | 2026-05-22 |
| Level 3 (Lumen) | Competitive / VoIP (CLEC) | 45(8%) | 30 | 2026-06-16 |
| Powertel Nashville Licenses, INC. | Wireless | 39(7%) | 16 | 2025-12-11 |
| Onvoy (Sinch) | Competitive / VoIP (CLEC) | 33(6%) | 23 | 2026-09-21 |
| Charter (Spectrum Voice) | Competitive / VoIP (CLEC) | 28(5%) | 28 | 2023-01-13 |
| PAETEC (Windstream) | Competitive / VoIP (CLEC) | 26(5%) | 18 | 2010-12-13 |
| Ben Lomand Rural Tel. Coop., INC. | Incumbent landline (ILEC) | 19(4%) | 17 | — |
| Frontier Communications | Incumbent landline (ILEC) | 19(4%) | 7 | 2011-06-20 |
| Twin Lakes Tel. Coop. CORP. | Incumbent landline (ILEC) | 19(4%) | 14 | 2004-07-02 |
| Metro by T-Mobile (MetroPCS) | Wireless | 9(2%) | 8 | 2022-06-14 |
Largest rate centers (exchanges) by prefixes: Clarksville (71), Cookeville (35), Columbia (32), Shelbyville (22), Crossville (17), Tullahoma (17), Winchester (15), Lawrenceburg (13), McMinnville (13), Baxter (12). Source: NANPA Central Office Code Utilized Assignments (public, refreshed weekly).
What to do about calls from 931 numbers
Before you call back
- Medical & prescriptions is the top named complaint here. Don't confirm your Medicare or insurance number to a caller. Medicare won't cold-call you to sell braces, test kits or plans. Read about Medicare scam calls.
- Look up the full number above. A missed call from 931 with no voicemail is usually a robocall; anyone who needs you will leave a message.
- If it looks like a neighbor's number, it may be spoofed. See calls from your own area code.
- Block repeat callers: iPhone, Android, or your carrier's free filter (Verizon, AT&T, T-Mobile).
Report it in Tennessee
- Unwanted sales calls and robocalls: donotcall.gov (FTC). Scams and fraud: ReportFraud.ftc.gov.
- Spoofing, texts and call-blocking problems: FCC consumer complaints.
- State complaints: Tennessee Attorney General.
- Tennessee is one of the states that maintains its own Do Not Call registry alongside the federal National Do Not Call Registry, so telemarketers calling Tennessee numbers are expected to check both lists. Registering on the federal list at donotcall.gov is free and never expires; the state list is administered separately and may have its own registration process and renewal period.
Your FTC and FCC reports are published (without your name or number) in the datasets this page is built from. How to report unwanted calls.
Area code 931: questions answered from the data
Where is area code 931?
Area code 931 serves Clarksville, Cookeville and Columbia, Tennessee, covering Montgomery County, Maury County and Putnam County and 29 more counties. It has been in service since September 15, 1997. It was split from area code 615.
What time zone is area code 931 in?
Area code 931 spans Eastern and Central time. Most of it is in the Eastern zone (UTC−5, or UTC−4 during daylight saving time). The current local time in each zone is shown at the top of this page.
What are calls from 931 numbers usually about?
Since Jul 24, consumers filed 1,698 FTC Do Not Call complaints about 931 numbers. The most common named subject was medical & prescriptions: 14% of complaints, 68% of them recorded messages. Across all subjects, 68% of callers who answered the question said the call was a robocall.
When do 931 spam calls happen?
32% of the complaints that give a call time describe calls between 9am and 12pm, and 94% came on weekdays, most often on Wednesday. Times are as consumers reported them.
Are calls from 931 numbers really local?
Not necessarily. 71% of the FTC complaints about 931 numbers came from people whose own phone number also starts with 931, and 77% from Tennessee. Calls that look local to the person receiving them are the signature of neighbor spoofing: robocallers display a number from your own area code because you're more likely to answer.
Are 931 robocalls increasing?
In the four weeks to Oct 20, consumers filed 488 FTC complaints about 931 numbers, 16% fewer than the four weeks before.
How do I report a 931 scam call in Tennessee?
Report unwanted sales calls and robocalls to the FTC at donotcall.gov, and scams to ReportFraud.ftc.gov. The FCC takes complaints at consumercomplaints.fcc.gov. In Tennessee, the Tennessee Attorney General also handles consumer complaints about scam calls. Reports feed the public data this page is built from.
Other Tennessee area codes
Sources: FTC Do Not Call complaints (unverified consumer reports), published every weekday and available here from Jul 24; FCC Consumer Complaint Data, public record, imported nightly; NANPA numbering records. A number appearing here means consumers reported calls that displayed it. Caller ID can be spoofed.