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Area code 840 · California

(840) 237-3511

840-237-3511 · 8402373511 · Low complaint volume

Consumers have filed 2 complaints about calls from (840) 237-3511 with the Federal Trade Commission and the Federal Communications Commission, between Sep 30, 2026 and Sep 30, 2026. Most reports do not name a specific topic, and 0% of callers used a recorded message. All complaints with a location came from South Carolina.

2Total complaintsFTC 1 · FCC 1
2Last 30 daysLast 7 days: 0
0%Recorded messageof 2 reports that said
1States reportingMost: South Carolina

Complaint activity for (840) 237-3511

Complaints per day about (840) 237-3511, Sep 30, 2026 to Oct 21, 202612Sep 30, 2026: 2Sep 30Oct 1, 2026: 0Oct 1Oct 2, 2026: 0Oct 3, 2026: 0Oct 4, 2026: 0Oct 5, 2026: 0Oct 6, 2026: 0Oct 7, 2026: 0Oct 8, 2026: 0Oct 9, 2026: 0Oct 10, 2026: 0Oct 11, 2026: 0Oct 12, 2026: 0Oct 13, 2026: 0Oct 14, 2026: 0Oct 15, 2026: 0Oct 16, 2026: 0Oct 17, 2026: 0Oct 18, 2026: 0Oct 19, 2026: 0Oct 20, 2026: 0Oct 21, 2026: 0
Complaints per day about (840) 237-3511, Sep 30, 2026 to Oct 21, 2026

What callers from this number were about

  • Other1 (50%)
  • Not specified1 (50%)

If you do not recognize a caller, let the call go to voicemail. Legitimate callers usually leave a message, and you can call them back using a number you have verified yourself.

Where the complaints came from

Cities named in complaints: Columbia, SC (2)

Latest complaints

Date filedConsumer locationTopicTypeSource
Sep 30, 2026Columbia, SCNot specifiedLive callerFCC
Sep 30, 2026Columbia, SCOtherLive callerFTC

Number details

Formats
(840) 237-3511 · 840-237-3511 · +1 840-237-3511 · 8402373511
Area code
840 · California
Rate center
Ontario, CA
Originally assigned to
Onvoy, LLC - CA (prefix 840-237, since 2023)
First and last complaint
Sep 30, 2026 – Sep 30, 2026

The carrier shown is the company the prefix was first assigned to by the numbering administrator. Numbers are often ported to other carriers, and caller ID can be faked, so the real caller may be unrelated to this carrier or to the person who owns this number.

How to report an unwanted call

  • Federal Trade Commission. Report telemarketing and robocalls at donotcall.gov or by calling 1-888-382-1222. These are the reports that feed most of this site.
  • Federal Communications Commission. File an unwanted call or text complaint at consumercomplaints.fcc.gov.
  • Your phone carrier. Most carriers offer free spam labeling and call blocking, and some let you forward spam texts to 7726 (SPAM).
  • Your state attorney general. Most states have a consumer protection office that takes complaints about telemarketing and scams.

Other reported numbers in area code 840

Phone numberComplaintsTopicLast reported
(840) 263-7620115Debt reductionOct 12, 2026
(840) 666-60828Impostor callsSep 28, 2026
(840) 201-41733OtherSep 23, 2026
(840) 268-46073Impostor callsSep 16, 2026

See all reported numbers in area code 840 →

Is this your number?

If you own (840) 237-3511 and believe it is being spoofed, tell your carrier and keep records of the complaints you receive. You can also contact us through the site to add context to this page.