The closure of the copper network in France is an ambitious project designed to replace this long-standing telecommunications infrastructure with modern technologies such as optical fiber. These new systems are more energy-efficient, faster, and offer improved service quality while reducing maintenance costs. However, this major transition presents significant challenges for local authorities and businesses, as it demands careful strategic, technical, and logistical preparation. This article will explore the implications of the copper network shutdown, the key stages of the transition, and how stakeholders can best prepare for the change.