Nippon Telegraph & Telephone Corp. operates as a holding company, which engages in the provision of telecommunication services. It operates through the following businesses: Regional Communications, Long-Distance and International Communications, Mobile Communications, Data Communications, and Other Businesses. Read More The Regional Communications business offers domestic intra-prefectural communication services such as fixed voice-related, Internet protocol (IP), and packet communications services; and sells telecommunications equipment. The Long Distance and International Communications business deals with the domestic intra-prefectural and international communications and system integration services. The Mobile Communications business provides mobile voice-related, IP, and packet communications services. The Data Communications business covers the system integration and network system services. The Other Businesses includes in the real estate, finance, engineering, system integration and data processing, and development of technologies and shared operations. The company was founded on August 1, 1952 and is headquartered in Tokyo, Japan. NTTYY is listed on the Pink Current market tier. OTC market data is provided by OTC Markets Group, Inc (otcmarkets.com). The listed name for NTTYY is Nippon Telegraph and Telephone Corporation American Depositary Shares - Sponsored.