Telecom carrier DDI Corp. said Friday it will merge seven of its eight regional cell-phone service providers on Nov. 1 to increase efficiency, naming the merged entity "au."
DDI, Japan's second-largest telecommunications company, will merge all its cell-phone affiliates except Okinawa Cellular Telephone Co. in Okinawa Prefecture.
The merger will comprise regional providers in Hokkaido, Tohoku, Hokuriku, Kansai, Chugoku, Shikoku and Kyushu regions.