TAT-3 explained

TAT-3 was the third transatlantic telephone cable, in operation from 1963 to 1986. It had 414 kHz of bandwidth, allowing it to carry 138 telephone circuits (simultaneous calls). It was long, connecting Widemouth Bay in Cornwall, England to Tuckerton, New Jersey in the United States. It was owned by AT&T and GPO (now BT).^[1] It cost £12m ^[2] in 1960 .

Notes and References

1. Web site: History of the Atlantic Cable & Submarine Telegraphy - Cable Timeline.
2. Web site: Burns . Bill . TAT-3 . The Atlantic Cable . 28 January 2022.