Our specific SouthESIM plans are designed to give you the best value and coverage within Uruguay. If your journey includes a trip across the Río de la Plata to Buenos Aires, Argentina, perhaps via the Buquebus or Colonia Express ferry, your Uruguay-specific plan will not provide service once you leave Uruguayan waters. For seamless connectivity across both countries, consider our regional Latin America bundles, which are perfect for exploring both Montevideo and the vibrant Argentine capital.
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Is my SouthESIM Uruguay plan valid for Argentina (Buenos Aires) as well, or just Uruguay?
Updated April 22, 2026
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