This study adopts the regulatory state thesis to highlight the changes that have occurred in the economic and social role of the state and then the way in which public policy problems are addressed. The discussion focused on the regulatory policies of the telecommunications sectors following the economic liberalization of these markets and their opening to competition, through examining three cases in the Arab region: Egypt, the UAE and Qatar. The study is based on the hypothesis that the shift in the role of the state from the welfare state model, whereby the state and its institutions played the main role in the operations of providing communications services, to the regulatory state model, whereby the country adopts strategies to liberalize those markets, has necessitated making room for non-state actors to play an expanding role as a telecommunications service provider and operator. At the same time, the state has become the regulator that controls the behavior of new actors by designing regulations and legislation that control the rhythm of service delivery processes in liberalized telecom markets, in a manner that guarantees the quality of the services provided, and in a way that benefits the users.