TAT-12/13 were AT&T's 12th and 13th transatlantic telephone cables,
in operation from 1996, initially carrying 2 x 5Gb/s.
This was the first TAT cable to use a ring structure, involving
two stretches of cable across the ocean floor, which explains why
two numbers (12 and 13) were used. All later cables also use a ring
structure, but only use one number (TAT-14 etc.).
Please note that the slash is part of the name. This is not a subpage.