Before revision: "Public data network" was the common name given to the collection of X.25 providers, the first of which were DATAPAC in Canada and Telenet in the United States in 1976, and Transpac in France in 1978.
After revision: "Public data network" was the common name given to the collection of X.25 providers, the first of which were DATAPAC and DATAPAC in Canada in Canada and Telenet in the United States in 1976, and Transpac in France in 1978.