| 1831 |
In 1832, Samuel F. B. Morse, a young American painter, conceived a telegraph method using electromagnets aboard a ship heading from France to America. After returning home, he advanced his research and in 1838, successfully demonstrated a public transmission experiment, leading to the widespread adoption of Morse telegraphy. |
| 1852 |
In 1853, the Black Ships arrived. |
| 1867 |
1868. |
| 1868 |
In 1869, communication engineers from Britain were invited, and the first telegraph lines in Japan were established at Yokohama Lighthouse Office and Yokohama Court. This marked the beginning of Japan's telegraph industry. |
| 1869 |
In 1870, telegram service began. |
| 1926 |
In 1926, following the Great Kanto Earthquake, the Delville magnetic wall-mounted telephone was introduced at the Tokyo Kyobashi Office. |
| 1933 |
In 1933, the prototype of the black telephone was born. |
| 1952 |
In 1952, Japan Telecommunications Public Corporation was established. |
| 1953 |
In 1953, the No. 23 automatic wall-mounted telephone was introduced. |
| 1958 |
In 1958, Tokyo Tower was completed. |
| 1962 |
In 1962, the Type 600 automatic desktop telephone was introduced and became widespread in many households. |
| 1965 |
In 1965, the Tokaido Shinkansen 'Hikari' began operation. |
| 1966 |
In 1966, Japan's total population exceeded 100 million. |
| 1968 |
In 1968, pocket bell service was launched. |
| 1969 |
In 1969, the Tomei Expressway was fully opened. |
| 1970 |
In 1970, the Japan Expo (Osaka Expo) was held. |
| 1973 |
In 1973, fax service was launched. |
| 1978 |
In 1978, New Tokyo International Airport (Narita Airport) opened. |
| 1984 |
In 1984, the Nikkei average stock price surpassed the 10,000 yen mark. |
| 1985 |
In 1985, Denden Corporation was privatized and Japan Telecom Corporation (NTT) was established. |
| 1985 |
In 1985, privatization from the Telecommunications Public Corporation to NTT. The Japan Telecommunications Public Corporation was privatized against the background of liberalization of communications. The newly established Japan Telecommunications Corporation's common name became NTT. The Public Telecommunications Law was amended to the Telecommunications Business Law, and entry into the telecommunications business was liberalized. |
| 1987 |
In 1987, NTT started handheld mobile phone services. |
| 1988 |
In 1988, NTT Data was established. |
| 1988 |
In 1988, the mobile shoulder phone model 101 was launched. |
| 1988 |
The first shoulder phone (Model 100) weighed 3 kilograms and was a car-external mobile phone that could be used away from the car. The Model 101, released in 1988, was dedicated to mobile use. It was revolutionary to become portable, but weighed 2.5 kilograms. |
| 1991 |
In 1991, the 'mova' mobile phone was born and became a hit. |
| 1991 |
After privatization, NTT Docomo was established in 1991. |
| 1991 |
In 1991, the mobile phone "MOVA," aiming to be the "smallest and lightest in the world," was born. |
| 1992 |
In 1992, NTT separated and made the mobile communications division independent as NTT Mobile Communications Network Inc. |
| 1992 |
After privatization, NTT Facilities was established in 1992. |
| 1992 |
In 1992, NTT separated and established the Mobile Communications Division as NTT Mobile Communications Network Inc. |
| 1995 |
In 1995, PHS (Personal Handy Phone System) was introduced. |
| 1995 |
In 1995, the simple mobile phone PHS (Personal Handy Phone System) also appeared. |
| 1996 |
In 1996, the internet connection service "OCN" was launched. |
| 1997 |
After privatization, NTT Comware was established in 1997. |
| 1999 |
In 1999, the NTT group transitioned to a shareholding system, and NTT East, NTT West, and NTT Communications were established. |
| 1999-02-22 |
On February 22, 1999, i-Mode service was launched. |
| 1999-02-22 |
On February 22, 1999, the i-Mode compatible mova 501i was launched. |
| 2001 |
In 2001, NTT East and West started FTTH (Fiber To The Home) services. |
| 2001 |
In 2001, B Flets service started. |
| 2001 |
In 2001, optical fiber provision to general households began. |
| 2001-08-01 |
On August 1, 2001, the internet connection service using optical fiber, 'B Flets', was fully launched. |
| 2003 |
In 2003, terrestrial digital broadcasting began. |
| 2005 |
In 2005, Japan's first magnetic levitation linear motor car (Aichi Rapid Transit Eastern Hills Line) opened. |
| 2005 |
In 2005, Japan's first maglev train (Aichi Rapid Transit Eastern Hills Line) opened. |
| 2007 |
In 2007, the 'Hikari TV' service was launched. |
| 2008 |
In 2008, as the first phase of cloud services, 'BizCITY for SaaS Provider' was launched. |
| 2010 |
In 2010, NTT acquired Dimension Data and Keane (now NTT DATA, Inc.) to establish a global ICT service system. |
| 2010 |
Since the 1990s, NTT Group has expanded into overseas markets, mainly in Asia, Europe, and the United States. In 2010, it acquired Dimension Data and Keane (now NTT DATA, Inc.), establishing a system to provide comprehensive ICT services globally, including Australia, South America, Africa, and the Middle East. Currently, it provides services to over 190 countries and more than 10,000 companies. |
| 2011 |
In 2011, the Great East Japan Earthquake occurred. |
| 2012 |
In 2012, Tokyo Skytree opened. |
| 2015 |
In 2015, NTT formulated and announced the mid-term management strategy "Aiming for a New Stage 2.0". |
| 2015 |
The 'Immersive Telepresence Technology Kirari!' is NTT's ultra-high realism communication technology aimed at streaming entire competition spaces in real-time within Japan and worldwide. It reproduces the powerful performances of athletes and their environments in real-time, enabling communication at multiple locations simultaneously. This technology provides a feeling as if you are at the competition venue and contributes to sharing the excitement of sports worldwide by 2020. (Photo: PoC in NTT R&D Forum 2015) |
| 2018 |
In 2018, the "Your Value Partner" strategy was announced. |
| 2019 |
In 2019, NTT announced the "IOWN (Innovative Optical and Wireless Network)" concept. |
| 2021 |
In 2021, the "NTT Green Innovation toward 2040" environmental energy vision was announced. |
| 2021 |
Amid increasing environmental issues such as climate change, NTT has formulated the 'NTT Green Innovation toward 2040,' a new environmental energy vision to achieve zero environmental impact and economic growth simultaneously through reducing environmental burdens in business activities and creating innovation that breaks limits. By 2030, it aims to reduce greenhouse gas emissions by 80% (compared to 2013) and achieve carbon neutrality for mobile (NTT Docomo) and data centers, with the goal of achieving carbon neutrality for the NTT Group by 2040. |
| 2021 |
NTT Group believes that realizing a society that encompasses conflicting concepts and phenomena, recognizing diverse values, leads to a sustainable society. Based on the idea of 'Self as We,' supported by connections with all entities including people, goods, and technology, it has established the 'NTT Group Sustainability Charter' globally to simultaneously grow as a company and solve social issues. |
| 2022 |
In 2022, NTT Docomo became a subsidiary of NTT Communications and NTT Comware. |
| 2022 |
A new NTT Docomo Group has been formed by integrating the functions of NTT Docomo, NTT Communications, and NTT Comware, expanding its business domain from mobile to services and solutions. |
| 2023 |
In 2023, as a commercial service of the IOWN concept, the provision of IOWN 1.0, which uses exclusive optical wavelengths, began. |
| 2023 |
In 2023, the "New value creation & Sustainability 2027 powered by IOWN" strategy was announced. |
| 2023 |
As the first commercial service toward realizing the IOWN concept, the All-Photonics Network (APN) IOWN 1.0, which uses wavelength division multiplexing across the entire communication network, has been launched. |
| 2023 |
NTT will continue to challenge itself with the basic idea of 'Creating new value and sustainability for the Earth.' It plans to invest approximately 8 trillion yen in growth areas over the next five years, strengthen cash generation, and grow EBITDA by 20% to 4 trillion yen by 2027 compared to 2022. The strategy is based on three pillars: 1) creating new value and supporting a global sustainable society through IOWN, data-driven innovation, and a circular society; 2) advancing customer experience (CX); and 3) enhancing employee experience (EX). |
| 2026-04-22 |
[MWC26 Report] Transforming society through technology, from individual life to corporate business! The forefront of NTT Group's AI agents. |
| 2026-05-22 |
IOWN, which has moved from verification to implementation stage, held its annual meeting in Sydney. |
