Sophia DigitalSophia Digital, Inc.


Company Profile

Corporate Philosophy

Through the Internet, we connect person, companies, and materials.

Internet communication is necessary for our lives, for your business, in different scenes.

Sophia Digital, Inc. offers the Internet communication environment with mobile network and fixed-line network in different ways.
We create and realize a communication environment which makes our lives more convenient and fruitful.

Campany Profile

Company Name Sophia Digital, Inc.
Address KDX Iidabashi Bld.4F, 2-26, Shimomiyabi-cho, Shinjuku-ku, Tokyo 162-0822 Japan
Phone Number +81-3-6758-0511
Date of Establishment February 1, 2010
Officers President and CEO : Kazuo Takahashi
Director : Naoki Sakuma
Auditor : Yasushi Higasa
  • Notification of Telecommunications Business
    No. A-26-13747
  • Secondhand Dealer License
    No. 304351707042
    (Issued by Tokyo Metropolitan Public Safety Commission)
Group Companies

View Larger MapView map with application

Access by Train

3 minite-walk from Iidabashi Station (JR Line / Subway Oedo Line / Subway Tozai Line / Subway Nanboku Line)

Description of Business

  • Voice/Data SIM cards Services as MVNO(E) of NTT docomo
  • Offering Mobile Solutions including M2M
  • Prepaid SIM cards Services for short-term travelers
  • Voice Services including IP phone Services, VoIP Services, and PAYG Services
  • International Calls Services (Transcall)
  • Sales of Communication Devices including Smartphones, Tablets, and WiFi Routers
  • Optical Fiber Services (Sophia Hikari)
  • Solar Business