WhoCalledLookupUS

660 Area Code: Sedalia, Missouri

Area code 660 serves Sedalia, Kirksville and Warrensburg, Missouri in the Central time zone, in service since 1997. Consumers have filed 1,287 unwanted-call complaints against 1,127 different 660 numbers, 274 of them with the FTC in the last 30 days. Look up the exact number that called you below.

Area code 660 at a glance

Main cities
Sedalia, Kirksville, Warrensburg, Clinton + 215 more
Counties
Pettis County, Saline County, Johnson County, Nodaway County + 37 more
Local time
—Central
In service since
October 12, 1997
Split from
816
Local dialing
10 digits (area code + number)
Exchanges
224 rate centers, 518 prefixes

Sources: NANPA area code and central office code records (refreshed weekly); cities and counties matched from US Census Bureau and USGS place names.

Map of Missouri with the 41 counties served by area code 660 shaded, and Sedalia, Kirksville and Warrensburg marked
Shaded: counties with exchanges in area code 660. Dots: the largest exchanges. Coverage is approximate: area codes follow exchange boundaries, not county lines. Built from NANPA prefix assignments and US Census Bureau boundaries.
1,127
Reported numbers
697
FTC DNC reports
590
FCC complaints
274
Last 30 days (FTC)

Reported 660 numbers

No single 660 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 660 numbers are about

697 FTC Do Not Call complaints about 660 numbers since Jul 24. The most common named subject is debt-relief pitches, at 24% of complaints (84% of those were recorded messages). Overall, 76% of callers who answered said the call was a robocall.

FTC complaint subjects

  • Other / unspecified23133%
  • Debt reduction16524%
  • No subject given8011%
  • Impostor (government, business, family)7811%
  • Medical & prescriptions7010%
  • Dropped call / no message568%
  • Vacation & timeshares71%

FCC complaints by call type, last 2 years

  • Prerecorded Voice4461%
  • Live Voice2433%
  • Text Message46%

Live-voice calls are from a person; prerecorded calls are robocalls.

When 660 spam calls come in

30% of complaints that give a call time describe calls between 1pm and 4pm. 93% came Monday to Friday, most on Tuesdays, 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?

272 FTC complaints about 660 numbers in the last four weeks, up 38% on the four weeks before. FCC complaints about 660 numbers peaked in 2016 (106); 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

51% of the FTC complaints about 660 numbers came from Missouri residents, but only 44% from people with 660 numbers themselves. The calls are mostly regional rather than aimed at 660 phones specifically.

Where complainants live

  • Missouri35751%
  • Florida426%
  • California375%
  • Texas264%
  • New York213%

What people with 660 numbers report

People whose own number starts with 660 filed 441 FTC complaints since Jul 24. 70% were about calls showing another 660 number. The most common named subject was medical & prescriptions.

Area codes on the calls they reported

  • 660 (same code)30770%
  • 833 (toll-free)143%
  • 573102%
  • 816102%
  • 866 (toll-free)92%

Likely campaigns using 660 numbers

Groups of numbers that drew the same FTC complaint in the same pattern over the last 60 days. The grouping is statistical and doesn't identify who is calling.

Busiest 660 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.

PrefixComplaintsNumbers
(660) 444-xxxxcampaign1818
(660) 300-xxxx98
(660) 356-xxxx88
(660) 900-xxxx88
(660) 955-xxxx77

Carriers operating in 660

NANPA has assigned 518 660 prefixes (NPA-NXX central-office codes) across 224 rate centers: 20% to wireless carriers, 77% to landline and VoIP operators; 79% are pooled blocks shared by several carriers. 6 prefixes were assigned in the last 12 months (newest 2026-10-19). 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.

CarrierTypePrefixes
Level 3 (Lumen)Competitive / VoIP (CLEC)63(12%)
CenturyLink (Lumen)Incumbent landline (ILEC)46(9%)
Onvoy (Sinch)Competitive / VoIP (CLEC)41(8%)
Southwestern Bell (AT&T)Incumbent landline (ILEC)40(8%)
Grand River Mutual Tel COIncumbent landline (ILEC)36(7%)
Verizon Wireless (Cellco Partnership)Wireless34(7%)
AT&T Mobility (New Cingular Wireless PCS)Wireless34(7%)
Aerial Communications, INC.Wireless25(5%)
WindstreamIncumbent landline (ILEC)23(4%)
Chariton Valley Tel. CO.Incumbent landline (ILEC)18(3%)
Brightspeed of East Missouri, LLCIncumbent landline (ILEC)17(3%)
Fractel, LLCCompetitive / VoIP (CLEC)16(3%)

Largest rate centers (exchanges) by prefixes: Sedalia (23), Kirksville (15), Warrensburg (14), Clinton (13), Maryville (10), Moberly (10), Chillicothe (9), Marshall (9), Boonville (6), Butler (6). Source: NANPA Central Office Code Utilized Assignments (public, refreshed weekly).

What to do about calls from 660 numbers

Before you call back

  • Debt reduction is the top named complaint here. Don't pay upfront fees for debt relief; the FTC's Telemarketing Sales Rule bans them. Talk to your lender or a nonprofit credit counselor instead. Read about debt-relief robocalls.
  • Look up the full number above. A missed call from 660 with no voicemail is usually a robocall; anyone who needs you will leave a message.
  • Block repeat callers: iPhone, Android, or your carrier's free filter (Verizon, AT&T, T-Mobile).

Report it in Missouri

  • 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: Missouri Attorney General.
  • Missouri is one of the states that maintains its own Do Not Call registry alongside the federal National Do Not Call Registry, so telemarketers calling Missouri 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 660: questions answered from the data

Where is area code 660?

Area code 660 serves Sedalia, Kirksville and Warrensburg, Missouri, covering Pettis County, Saline County and Johnson County and 38 more counties. It has been in service since October 12, 1997. It was split from area code 816.

What time zone is area code 660 in?

Area code 660 is in the Central time zone (UTC−6, or UTC−5 during daylight saving time). The current local time is shown at the top of this page.

What are calls from 660 numbers usually about?

Since Jul 24, consumers filed 697 FTC Do Not Call complaints about 660 numbers. The most common named subject was debt-relief pitches: 24% of complaints, 84% of them recorded messages. Across all subjects, 76% of callers who answered the question said the call was a robocall.

When do 660 spam calls happen?

30% of the complaints that give a call time describe calls between 1pm and 4pm, and 93% came on weekdays, most often on Tuesday. Times are as consumers reported them.

Are calls from 660 numbers really local?

Not necessarily. 51% of the FTC complaints about 660 numbers came from Missouri residents, but only 44% from people with 660 numbers themselves. The calls are mostly regional rather than aimed at 660 phones specifically.

Are 660 robocalls increasing?

In the four weeks to Oct 20, consumers filed 272 FTC complaints about 660 numbers, 38% more than the four weeks before.

How do I report a 660 scam call in Missouri?

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 Missouri, the Missouri Attorney General also handles consumer complaints about scam calls. Reports feed the public data this page is built from.

Other Missouri 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.