The A25 (Portuguese: Autoestrada das Beiras Litoral e Alta) is a major motorway (freeway) in Portugal.

It connects Aveiro, in the west coast, to Vilar Formoso, where the motorway crosses the border and continues as A-62 Motorway in Spain.

Serving important cities in the interior like Viseu and Guarda, A25 is operated by Ascendi Costa de Prata, Auto Estradas da Costa de Prata, S.

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