TSV

Japanese Mobile Carriers - TSV

Japanese mobile carriers consist of three major carriers (NTT DOCOMO, KDDI (au), and SoftBank) and Rakuten Mobile as the fourth carrier that entered the market in 2020. These operators provide mobile phone lines and smartphone services, supporting Japan's communication infrastructure. Each carrier maintains its own communication network, offering 5G services and various sub-brands, with intense competition continuing in the market.

mobile phone mobile carrier telecommunications DOCOMO au SoftBank Rakuten Mobile 5G MNO

code	slug	name	description	established	marketPosition	parentCompany	serviceStart	subBrand
01	ntt-docomo	NTT DOCOMO	Japan's largest mobile carrier. Established in 1991, leading the market with innovative services like i-mode and FOMA.	1991-08-14	Market Leader	Nippon Telegraph and Telephone Corporation (NTT)	1992-07-01	ahamo
02	kddi-au	KDDI (au)	Japan's second-largest mobile carrier. Born from the merger of DDI, KDD, and IDO in 2000. Known for well-balanced services.	2000-10-01	Second Place	KDDI CORPORATION (Holding Company)	2001-07-01	UQ mobile, povo
03	softbank	SoftBank	Japan's third-largest mobile carrier. Entered the market by acquiring Vodafone in 2006. Top-class 5G coverage rate.	2006-04-01	Third Place	SoftBank Group Corp.	2006-10-01	Y!mobile, LINEMO
04	rakuten-mobile	Rakuten Mobile	Japan's fourth carrier. Full-scale service started in 2020. Built the world's first fully virtualized cloud-native network.	2018-01-10	Fourth Place	Rakuten Group, Inc.	2020-04-08	-