Electronic communications networks and services represent a naturally limited common asset of interest to the Republic of Croatia. The development of the economy, society and the state depends significantly on the development of electronic communication networks and services, especially because digitalization is the basis of Industry 4.0. The digitization process largely depends on the operators of the electronic communications market, as they're the carriers of the infrastructure, investments and innovative solutions that enable the digital transition. A developed market and intense competition are of great importance for the development of the electronic communications markets in the Republic of Croatia, as a consolidated market, accompanied by strong competition between competitors, is a guarantee of pricing in line with the market, a guarantee of high quality of services and a guarantee of strong infrastructure development. It's possible to define a sustainable competitive advantage as the ability to find a solution that has the potential to satisfy the interests of customers and suppliers more efficiently than those of competitors or substitute goods and services over a long period of time, despite the conflicting interests of all parties. The method of achieving a sustainable competitive advantage is based on strategic thinking, innovation, creativity, key resources, unique capabilities, financial capabilities, and harmonization of a company with the environment. The problem of migration of users of the electronic communications market can be addressed by an offering that contains rational-irrational elements that can lead to a competitive advantage over a long period of time. The resources and capabilities for a sustainable competitive advantage in the electronic communications market in the Republic of Croatia are combined in the process of creating a "price moat".