Rival NTT DoCoMo was the last of the Japanese mobile carriers to get the iPhone, and lost more than 66,000 customers after it ran out of the iPhone 5s and 5c. Frustrated customers had no choice but to leave NTT DoCoMo and head to competitors SoftBank or KDDI.
The iPhone now has more than 30 percent of the Japanese smartphone market. SoftBank has been selling the iPhone since 2008, and this latest quarter its profits jumped 84 percent. SoftBank also controls US carrier Sprint as a result of an acquisition in July.