Number overview
For 090-7021-5138, directories and social media carry user reports describing calls posing as Metropolitan Police Second Investigation Division officers and demanding an immediate appearance over a case (as of 2026-08-03). jpnumber registers it under a fake-police label, and fraud-watch sites and Yahoo! Chiebukuro carry similar consultations. Police across Japan warn about such intimidating police-impersonation calls as precursors to fraud.
Reported behavior
- Claiming to be a Metropolitan Police investigator
- Pressuring an immediate appearance over a supposed case
How to handle this call
Hang up and verify with the police yourself
End the call and dial the police consultation line (#9110) or a police station number you look up yourself. Calling the incoming number back proves nothing.
Reveal no personal or asset information
Answer no questions about accounts or assets. Real police never direct money transfers by phone.
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: fake-police labelled registration
- Fraud-watch sites: warnings against calling back this police-impersonation number (May 2026)
- X and Threads: posts describing the investigator claim
- Yahoo! Chiebukuro: similar consultations (May 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