TAT-8

Assembled from 16 blocks · 2 evidence · 10 related

1. Story
2. The first fibre-optic cable across an ocean, and the point at which the capacity of the seabed stopped being scarce. Built by a consortium led by AT&T, British Telecom and France Télécom at a reported cost of about $335 million, it entered service in December 1988 across roughly 6,000 km from Tuckerton, New Jersey, to a branching unit some way off Europe that split the system to Widemouth Bay in Cornwall and Penmarc'h in Brittany. It carried 280 Mbit/s on two working fibre pairs — about 40,000 simultaneous telephone circuits, against TAT-1's 36 thirty-two years earlier. Its repeaters were still electronic regenerators, because the erbium-doped optical amplifier was demonstrated only the year before it entered service; that timing is why TAT-8 marks the end of one era rather than the beginning of the next. It was retired in 2002 after a fault, and in 2025 the redundant cable began to be recovered from the seabed after some thirty-seven years on the bottom, which makes it one of the few systems whose entire life cycle — laid, worked, broken, abandoned, lifted — is a matter of record.
3. Knowledge
4. TAT-8
5. MAREA
6. Connections
7. TAT-1
8. MAREA
9. TAT-8, the first transoceanic fibre cable, enters service
10. TAT-8 is lifted from the seabed
11. TAT-8
12. The shift of cable ownership to content providers
13. MAREA is completed across the Atlantic
14. Evidence
15. Supports the TAT-1 route (Gallanach Bay near Oban to Clarenville, Newfoundland), its 36 telephone circuits and its 25 September 1956 inauguration, and the TAT-8 route, its 280 Mbit/s on two working fibre pairs, its roughly 40,000 circuits and its entry into service on 14 December 1988. V55 verification basis: retrieved by search, not opened. One retrieved source gives 26 rather than 25 September 1956 for TAT-1 entering service, and this pack records that discrepancy instead of resolving it.
16. Supports the fact of a recovery operation on TAT-8 beginning in 2025 and the 1988–2002 service period. V55 verification basis: trade reporting retrieved in summary; no operator statement was consulted, and the state or completion of the operation as of August 2026 is not established.