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This is the final shift to terrestial link. It goes from SLAC to sunnyvale then to Flordia (94.142.121.133 found using TULIP) and from here moves to Latin America (Cuba) on Fibre. This is just a different route and telefonica is the primary carrier.. There are two carriers available i.e. Tata and Telefonica. Tata shows better latency than Telefonica. {Renesys}