The Nippon Telegraph and Telephone Corporation is a Japanese telecommunications holding company headquartered in Tokyo, Japan. Ranked 55th in Fortune Global 500, NTT is the fourth largest telecommunications company in the world in terms of revenue, although it was the world's largest telecommunications company from 1996 to 2006, then it returned to being one of the world's largest telecommunications companies in 2012 and 2013, as well as the third largest publicly traded company in Japan after Toyota and Sony, as of June 2022. In 2023, the company was ranked 56th in the Forbes Global 2000. NTT was the world's largest company by market capitalization around 1989, and remained among the world's top 10 largest companies until the burst of the Dot-com bubble in the early 2000s. The company is incorporated pursuant to the NTT Law. Wikipedia