NTT owns NTT DoCoMo, the largest wireless operator in Japan, with 89.9 million subscribers. It also owns NTT East and NTT West, the two regional incumbent fixed-line operators in Japan, with about 23.7 million broadband lines (around 72% of which are wholesaled). The firm also provides IT and communications systems integration via NTT Communications and 52.4%-owned NTT Data.
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