Four more telecommunications operators – Regie des Telegraphes et des Telephones of Belgium, which had already indicated it would be buying a stake, Telecom Australia, PTT Telecom Netherlands and Singapore Telecom International Ltd – have each bought 5% stakes in Computer Sciences Corp’s Infonet international data network, reducing the El Segundo, California company’s stake in Infonet to 40%. France Telecom, and Deutsche Bundespost, 15% each, and Televerket of Sweden and Telefonica de Espana SA, 5% each, took their stakes in Infonet last September. No terms have been disclosed; Infonet accounted for $81m of Computer Sciences’ $1,150m annual business in the year to April 1988.