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Area code 408 · California

(408) 331-3817

408-331-3817 · 4083313817 · High complaint volume

Consumers have filed 14 complaints about calls from (408) 331-3817 with the Federal Trade Commission and the Federal Communications Commission, between Oct 12, 2026 and Oct 20, 2026. Most reports do not name a specific topic, and 100% of callers used a recorded message. All complaints with a location came from California.

14Total complaintsFTC 14 · FCC 0
14Last 30 daysLast 7 days: 12
100%Recorded messageof 14 reports that said
1States reportingMost: California

Complaint activity for (408) 331-3817

Complaints per day about (408) 331-3817, Oct 12, 2026 to Oct 21, 202647Oct 12, 2026: 2Oct 12Oct 13, 2026: 0Oct 14, 2026: 0Oct 15, 2026: 7Oct 16, 2026: 2Oct 17, 2026: 0Oct 18, 2026: 0Oct 19, 2026: 1Oct 20, 2026: 2Oct 21, 2026: 0
Complaints per day about (408) 331-3817, Oct 12, 2026 to Oct 21, 2026

What callers from this number were about

  • Other14 (100%)

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

Latest complaints

Date filedConsumer locationTopicTypeSource
Oct 20, 2026CAOtherRecorded messageFTC
Oct 20, 2026CAOtherRecorded messageFTC
Oct 19, 2026CAOtherRecorded messageFTC
Oct 16, 2026CAOtherRecorded messageFTC
Oct 16, 2026CAOtherRecorded messageFTC
Oct 15, 2026CAOtherRecorded messageFTC
Oct 15, 2026CAOtherRecorded messageFTC
Oct 15, 2026CAOtherRecorded messageFTC
Oct 15, 2026CAOtherRecorded messageFTC
Oct 15, 2026CAOtherRecorded messageFTC
Oct 15, 2026CAOtherRecorded messageFTC
Oct 15, 2026CAOtherRecorded messageFTC
Oct 12, 2026CAOtherRecorded messageFTC
Oct 12, 2026CAOtherRecorded messageFTC

Number details

Formats
(408) 331-3817 · 408-331-3817 · +1 408-331-3817 · 4083313817
Area code
408 · California
Rate center
Sunnyvale, CA
Originally assigned to
Mcimetro Access Transmission Services LLC (prefix 408-331, since 2026)
First and last complaint
Oct 12, 2026 – Oct 20, 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 408

Phone numberComplaintsTopicLast reported
(408) 457-84863Debt reductionOct 16, 2026
(408) 772-97114Not specifiedOct 15, 2026
(408) 772-97224Not specifiedOct 15, 2026
(408) 372-22236Not specifiedOct 9, 2026
(408) 317-08894Impostor callsSep 23, 2026
(408) 903-25663Debt reductionSep 14, 2026
(408) 740-27333Not specifiedSep 4, 2026

See all reported numbers in area code 408 →

Is this your number?

If you own (408) 331-3817 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.