AbstractThe rise in power of electronic communications networks, audiovisual and telecommunications inFrance is based on a complex arrangement of actors on the local and national level. For theresearcher, this rise raises the question of the relationship between networks and territories. Far frombeing regulated by a simple technical approach, this relationship brings to light a dialectics ofterritorialization. Within the context of the crisis of specialized executives in the area of publicintervention (crisis of the State-nation, decentralization), this dialectic combines the heterogenousrepresentations and practices of territories and the networks which structure them. The French "Plan-Câble" is a good illustration of this. As a result, the political and territorial dimension, far from being anegligible part of these technical projects, is in fact right at the center of network implantation. Ananalysis in. terms of territorial networks gives rewarding results.