Softbank Corp’s mobile arm added a net 324,900 new subscribers in December 2010, booking the largest gain of any of the country’s operators for the ninth month in succession. According to data published by the Telecommunications Carriers Association of Japan (TCA), Softbank Mobile ended the year with a total of 24.399 million subscribers, with strong uptake reportedly being driven by sales of Apple Inc.’s iPhone 4 smartphone. Market leader NTT DoCoMo came next in terms of net gains, gaining 169,600 subscribers for a total of 57.210 million users; its December gain was nearly double the November figure thanks in part to strong sales of Samsung Galaxy S smartphones. KDDI Corp’s au brand took third spot with a net gain of 95,400 subscribers, lifting its total to just over 32.527 million. eMobile logged the smallest net gain – 71,400 – for a month-end total of just over 2.923 million, while PHS operator WillCom lost a net 43,500 users for a total of 3.647 million.