Skip to main content
Denwa
Sales disguised as electricity-rate surveyHigh risk

0800-888-6380 phone number information

Basic Information

Number Type
Toll-free number (0800)

Number overview

0800-888-6380 is a toll-free number (the 0800 prefix). It is reported as a nuisance call using an automated-voice survey disguised as an electricity-rate review.

Reported behavior

  • Runs an automated-voice "survey on electricity rates"
  • Collects information under the guise of a "utility-cost reduction diagnosis"
  • After you answer, follow-up sales calls about solar panels and storage batteries arrive

Automated-voice phone solicitations like these may be aimed at harvesting personal information or building a sales list.

How to handle this call

Don't engage with the automated survey - just hang up. We recommend setting up call blocking.

Where to report or get help

  • Consumer Hotline: 188
  • Police consultation line: #9110

Frequently Asked Questions

What kind of call is 0800-888-6380?

It is reported as an automated-voice survey disguised as an electricity-rate survey. We recommend not engaging and hanging up.

View and post reviews for this number

Go to reviews for 0800-888-6380

Related Articles

How to Spot and Stop Robocalls

How robocalls work and how to identify them. Covers the VoIP-based auto-dialing technology behind them, common scam patterns, and effective countermeasures.

How to Fight Nuisance Calls - From Call Blocking to Reporting

A comprehensive guide to fighting nuisance calls. Covers call blocking on smartphones and landlines, carrier blocking services, and how to report offenders - prioritized for maximum effectiveness.

How to Handle Nuisance Calls at Work and Build an Office Policy

Efficient ways to handle sales and solicitation calls to your office main line. Covers how to draft internal policies that reduce receptionist burden and implement organization-wide nuisance call defenses.

Do You Know the Difference Between 0120 and 0800? Behind the Scenes of Toll-Free Numbers

Both are free-to-call numbers, but 0120 and 0800 have surprising differences. Learn about their history, why companies choose one over the other, and what consumers should know.

Related Phone Numbers

Sales disguised as electricity-rate surveyHigh risk

0800-300-7022

About the toll-free number 0800-300-7022. Reported as an automated-voice survey disguised as an electricity-rate survey.

Sales disguised as electricity-rate surveyHigh risk

0120-958-930

About the toll-free number 0120-958-930. Reported as a sales call disguised as an electricity-rate survey.

Sales disguised as electricity-rate surveyHigh risk

0120-829-571

About the toll-free number 0120-829-571. Widely reported as a sales call disguised as an electricity-rate survey.

Automated-voice surveyMedium risk

080-2059-1408

A number reported as an automated-voice survey posing as a fake power-company or rental-housing survey. Calls have been observed even on public holidays.