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TAT-4 was the fourth transatlantic telephone cable, in operation from 1965 to 1987. It operated at 384 kHz, initially carrying 128 telephone circuits between Saint-Hilaire-de-Riez, (France) and Tuckerton, New Jersey (United States). It was co-owned by AT&T and France Telecom. [1]


  1. ^ "History of the Atlantic Cable & Submarine Telegraphy - Cable Timeline". atlantic-cable.com. Retrieved 2018-08-05.