TGN Atlantic (TGN-A) previously VSNL Transatlantic and TGN Transatlantic, is a submarine telecommunications cable system transiting the Atlantic Ocean.
The cable was operated by the American corporation Tyco International until it was acquired for 130 million US$[2] by India's Videsh Sanchar Nigam Limited (VSNL) in 2005.
Since 2008 VSNL was rebranded as Tata Communications[3] and the cable was named TGN-A for Tata Global Network Atlantic.
[4] The cable system is constructed from two separate cables routed slightly differently, but both cables terminate in the same locality at each end.
Each cable is constructed with 4 fibre pairs per cable, and each fibre pair supports 64 10 Gbit/s waves at construction, allowing for a total lit capacity (at construction) of 2 cables x 4 fibre pairs x 64 10 Gbit/s waves = 5.120 Tbit/s.