Number overview
For 050-5785-2777, multiple directories carry user reports describing calls in the name of LS that pose as an affiliate of a power company or government body and try to schedule inspection visits (as of 2026-08-03). Telnavi lists many reports under LS sales, and jpnumber's registration carries a power-related caution.
Major utilities warn that they never cold-call to quiz you about your contract or set up visits. Posing as an affiliate of a familiar organization is a commonly reported tactic.
Reported behavior
- Claiming affiliation with a power company or ministry to request a visit appointment
- Trying to elicit your electricity usage and contract details
How to handle this call
Never agree to a visit
Do not schedule anything by phone; confirm any need directly with your utility's official desk.
Share no contract details
Avoid reading out your meter slip or contract capacity to the caller.
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 user reports under LS sales
- jpnumber: registration LS with a power-related caution
- tellows: a report of visit-appointment calls posing as a power-company affiliate
- Minna no Denwacho: similar 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