Number overview
For 050-5050-3273, many user reports across directories and social media describe calls posing as SoftBank, au, or their support centers, pushing internet-line switches with modem-swap or discount pretexts (as of 2026-08-03). jpnumber carries a caution label with dozens of reviews, and number-lookup articles and X posts report the same. The claimed carrier varies across reports.
Reported behavior
- Line-switch solicitations posing as major carriers or support desks
- Pretexts of modem replacement, free modem fees, or discounts
How to handle this call
Never agree by phone
Even if the caller names your own carrier, verify by contacting the carrier's member page or official desk yourself.
Cooling-off rule
Telecom telemarketing can be cancelled within 8 days of receiving the contract document.
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: caution-labelled registration with dozens of reviews (60-plus as of 2026)
- Number-lookup articles via Hatena Bookmark: reports of SoftBank-branded fiber-switch sales (April 2026)
- X (formerly Twitter): multiple posts describing modem-pretext pitches
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