Number overview
For 050-1790-9909, directories carry user reports describing solicitation calls for investment and money courses (as of 2026-08-03). Telnavi lists many reports under investment-solicitation sales, number-lookup articles describe money-course sales, and adjacent numbers carry similar registrations.
Reported behavior
- Solicitations to join investment courses or money schools
- Pitches starting from free videos or seminars
How to handle this call
Never sign up on the spot
Check the content, fees, and cancellation terms in writing, and whether the operator is registered with the FSA. Guaranteed-profit claims suggest illegality.
You may simply decline
Re-soliciting someone who has declined is prohibited by law.
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:
- Telnavi: numerous reports of investment-solicitation sales
- Number-lookup articles via Hatena Bookmark: money-course sales reports (March 2026)
- jpnumber: multiple reviews
Where to report or get help
- Consumer Hotline: 188
- Police consultation line: #9110
- Ministry of Internal Affairs and Communications - Telecommunications Consumer Consultation Center: 03-5253-5900