French telecom giant Orange SA is in early talks about buying into Iran's biggest cellular network operator, the Wall Street Journal reported. Such a deal could make history as the first time a Western firm has acquired a significant holding in a major Iranian company since Tehran agreed to curb its nuclear program last year in exchange for the lifting of international sanctions. Orange, which is part owned by the French government, is one of several European companies that have explored the potential of getting a stake in Mobile Telecommunication Co. of Iran, or MCI, the Journal said, citing people close to the matter.