de C.V., known as Alestra, is a Mexican IT Services company headquartered in San Pedro Garza García, Nuevo León, Mexico.

It is a subsidiary of the Mexican conglomerate Alfa.

It employs more than 1,600 people and operates five data centers, 3 in Monterrey, 1 in Guadalajara, and 1 in Querétaro.

In 2011, its parent company, Alfa, acquired 49% of Alestra's shares from AT&T.

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