KDDI Corp. scored the biggest net increase in subscriptions in June for the second month in a row, topping all mobile phone companies in Japan, an industry body said Friday.

KDDI netted 156,000 subscriptions -- new subscriptions minus cancellations -- thanks to a net jump of 302,600 customers to its au service.

The increase offset a net fall of 146,600 in its Tu-Ka service, the Telecommunications Carriers Association said.

NTT DoCoMo Inc. trailed KDDI with a net increase of 141,000 subscriptions, while Vodafone K.K. came in third with 16,600 additional subscriptions.

Total cell phone subscriptions rose 0.3 percent during the month to 92.87 million, while new subscribers to Willcom Inc.'s personal handy-phone system rose by 56,400.