TOKYO -- Japanese telecommunications company Rakuten Mobile, a subsidiary of Rakuten Group, has agreed to borrow lines from rival KDDI in the 23 wards of Tokyo and other major cities where it has mainly used its own lines, Nikkei has learned.
Agreement for mutual access will lower need for new cellphone base stations

Debt-ridden Rakuten Mobile is shifting from expanding its own lines, which imposes a heavy investment burden, to improving its financial condition.
TOKYO -- Japanese telecommunications company Rakuten Mobile, a subsidiary of Rakuten Group, has agreed to borrow lines from rival KDDI in the 23 wards of Tokyo and other major cities where it has mainly used its own lines, Nikkei has learned.