NTT History Center of Technologies

NTT技術史料館

The NTT History Center of Technologies presents the technical history of the NTT Group, with displays centered on developments since the Nippon Telegraph and Telephone Public Corporation was established in 1952. The museum opened in 2000 and marked its twenty-fifth anniversary in 2025, organizing historical equipment and research materials into a systematic exhibition. Visitors can come on published general open days without a reservation, typically selected Thursday and Friday afternoons, while larger reserved group visits follow a separate weekday schedule. Always confirm the current open-day calendar and any school-visit procedures on the official site before traveling.