NTT DOCOMO, INC., a longtime promoter of the Open Radio Access Network (Open RAN) concept, announced today that the company is now cooperating with five global telecom operators: KT Corporation (KT) in South Korea, Vodafone Group Plc (Vodafone) in Europe, Smart Communications Inc. (Smart) in the Philippines, DISH Wireless (DISH) in the United States and Singtel in Singapore on Open RAN initiatives.