Rossi, Martín

The introduction of number portability is considered an important milestone for the promotion of competition in telephone markets. Nevertheless, few studies have documented the challenges associated with its implementation or its real impact on sector performance, especially in Latin America. To a large extent this lack of evidence is because it is a recent phenomena – to date only the Dominican Republic, Brazil, Mexico and Peru have implemented number portability, while Chile, Colombia and Argentina are in the process of implementation.