Number overview
0120-201-450 is a number with user reports describing sales calls in Kansai Electric Power's name asking, "We'd like to go over your bill details together because of rising electricity rates" (as of 2026-08-03). We could not find this number among the contacts listed on Kansai Electric Power's official site.
Reported tactics
- Reports of callers claiming "This is Kansai Electric Power" and offering to review electricity bills
- User reports classifying the calls as power-switch or battery-related sales (Telnavi)
- Be careful with calls seeking meter-slip details, because a supply-point identification number enables provider-switch procedures
Sharing your supply-point identification number with a third party can lead to unintended provider-switch procedures. If a caller in a power company's name asks for meter-slip details, hang up and verify with your provider's official desk.
How to handle this call
Don't share meter-slip details
Never share your supply-point identification number, contract number, or customer number. With these details, your electricity provider can be switched without your agreement.
Verifying with Kansai Electric Power
If anything looks off, verify directly through Kansai Electric Power's official line (0800-777-8810).
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:
- jpnumber: the registered entry carries a note about callers using Kansai Electric Power's name
- Telnavi: user reports classifying it as power-related sales (9 users, nuisance score 100%)
Where to report or get help
- Kansai Electric Power Customer Center: 0800-777-8810
- Consumer Hotline: 188
- METI Electricity and Gas Market Surveillance Commission: 03-3501-5725