Number overview
0120-762-840 is a Free Dial number (the 0120 prefix). It is reported as a sales call from a caller claiming to be TEPCO (Tokyo Electric Power) or one of its affiliates.
Reported behavior
- Claims to be TEPCO or an affiliated organization and pitches an electricity-rate review or switch to a new plan
- The caller may actually be unrelated to TEPCO
- Tries to extract details about your usage or contract
Genuine power companies do not normally pressure customers into contract changes over the phone. If anything looks off, contact your current provider's official line directly.
How to handle this call
Even if the caller claims to be a power company, don't share contract or personal information. To verify whether a notice is genuine, call the number on the company's official website or your bill.
Sources of the reports
The descriptions on this page are based on user reports posted to third-party phone-number directories (checked as of 2026-08-03). This site has not independently verified the caller, and nothing here identifies the caller definitively. The reporting sources we checked are:
- Number-lookup articles via Hatena Bookmark: reports of utility-bill sales calls in Tokyo Electric Power's name
- jpnumber: registered as a fake Tokyo Electric Power caller
- Telnavi: user reports classifying it as power-related sales (nuisance score 89%)
Where to report or get help
- Consumer Hotline: 188
- Police consultation line: #9110