Ntt Docomo, Inc. is a leading Japanese telecommunications company that traces its origins to the privatization of Nippon Telegraph and Telephone in 1992. As a wholly owned subsidiary of NTT Corporation, Docomo has grown to become Japan’s largest mobile network operator, serving over 80 million subscribers across voice, data and value-added services. The company’s name—derived from the phrase “do communications over the mobile network”—reflects its pioneering role in the development of mobile standards and early adoption of packet‐switched data in the 1990s.
At its core, Ntt Docomo offers a comprehensive range of wireless communications products and services. These include mobile voice and data plans, next-generation 5G connectivity, and network infrastructure leasing. The company operates one of the most extensive base‐station networks in Japan, investing heavily in spectrum acquisition and network modernization to support high‐speed, low-latency services for both consumer and enterprise customers.
Beyond traditional telecom offerings, Docomo has diversified into digital and financial services. Its portfolio encompasses mobile payment platforms (such as d Payment and d Barai), device financing, cloud computing solutions, and an IoT ecosystem that connects automobiles, home appliances and industrial equipment. The company also produces proprietary content through music, video and game distribution platforms and has established joint ventures to develop AI-driven customer care and data‐analytics applications for corporate clients.
While Japan remains its primary market, Ntt Docomo has forged strategic alliances with major global carriers in North America, Europe and Asia to extend roaming capabilities and share best practices in 5G deployment. The company has also invested in foreign mobile operators and tech ventures, notably in India and Southeast Asia. Led by President and Representative Director Motoyuki Ii, Docomo continues to pursue innovation in wireless technology, digital services and strategic partnerships to sustain its leadership in the fast-evolving telecommunications landscape.
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