Japan, an island nation in East Asia, has a population of approximately 125 million people, primarily concentrated in urban areas along the coastlines, with Tokyo being the most populated city. The nation's mountainous terrain, which covers around 70% of the country, poses challenges to infrastructure development and telecommunications coverage. Nonetheless, Japan is renowned for its advanced technology and infrastructure, with remarkable solutions such as the Shinkansen bullet train, earthquake-resistant buildings and comprehensive telecommunications networks. Japan's telecommunications sector is highly mature, boasting the third largest market in the world and pioneering developments in 5G technology. Regarding renewable energy, Japan has been investing heavily in solar power since the 2011 Fukushima nuclear disaster, and is a global leader in offshore wind energy technology. Despite this, the country still largely depends on nonrenewable resources, inferring that the renewable energy sector is still developing. Japan's technological sector, however, is highly mature, hosting global tech giants like Sony and Toyota, and excelling in robotics, electronics and automobile manufacturing.

ITU Region
Region-3
Geographic Region
Asia & Pacific
Regulatory Body
Radio Department, Telecommunications Bureau Japan
Japan world map

Mobile Network Operators

The are 3 companies operating mobile networks in this region.

au KDDI logo

au KDDI

KDDI Corporation is a major telecommunications operator in Japan. The company was established in 2000 through the merger of DDI Corporation, KDD Corporation, and IDO Corporation. The following year, KDDI merged with its subsidiary Au, which was formed from the merger of seven automotive and mobile phone companies from the DDI-Cellular Group. KDDI offers a range of services including mobile cellular services under the Au brand, ISP network services under the au one net brand, and long-distance and international voice and data communications services under the "au Hikari" brand. In addition to...
Country
Japan
NTT DoCoMo logo

NTT DOCOMO

NTT DOCOMO, Inc., a prominent mobile phone operator in Japan, was established in August 1991. The company was originally a spin-off from its parent entity, Nippon Telegraph and Telephone (NTT), to oversee its mobile cellular operations. The term "DOCOMO" is an abbreviation of "do communications over the mobile network", and it also signifies "everywhere" in Japanese. The company's headquarters are located in the Sanno Park Tower, Nagatachō, Chiyoda, Tokyo. The majority stake in DOCOMO was held by NTT until 2020, when the company underwent re-privatisation. However, by the end of 2020, NTT...
Country
Japan
Softbank Mobile logo

SoftBank

SoftBank Group Corp. is a Japanese multinational investment holding company founded in September 1981 by Masayoshi Son. The company, initially established as a software distributor, later expanded into publishing, becoming Japan's largest publisher of computer and technology magazines and trade shows. The company went public in 1994 and later transitioned into a holding company in 1999, investing in a range of technology-focused companies across various markets and industries. The company's founder, Masayoshi Son, holds a significant share and is a key figure in its operations. SoftBank...
Country
Japan