Number overview
For 050-1790-2542, directories carry user reports describing sales calls in the name of Lead offering inspections or leases of business phone systems (as of 2026-08-03). jpnumber carries reviews, and number-lookup articles report phone-lease equipment sales. Reports of the same Lead branding span several numbers, including 050-5291-6280.
Reported behavior
- Sales calls using PBX inspections or lease renewals as a pretext
How to handle this call
Verify with your own vendor
Ask your installer or lease provider whether anything is needed. Ignore inspection offers from unknown vendors.
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:
- jpnumber: reviews describing sales in the name of Lead
- Number-lookup articles via Hatena Bookmark: phone-lease equipment sales reports (April 2026)
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