We can increase web speeds tenfold: SoftBank CEO

SoftBank CEO: US needs to increase Internet speed

SoftBank's CEO pressed his case Tuesday to merge the Japanese company's Sprint operations with T-Mobile despite concerns over antitrust issues, telling CNBC he could increase U.S. broadband speeds by tenfold.

During an interview on "Squawk on the Street," Masayoshi Son said wireless connectivity in the U.S. lags woefully behind other countries, For example, he said Japanese web users receive broadband connections up to twice as fast as their U.S. counterparts. Son told CNBC he could offer speeds of up to 200 megabits per second in the United States.

Verizon offers speeds ranging from 500 to 15 Mbps, but Son contends that average broadband speeds in the U.S. run much slower—around 20.

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Son said U.S. Web users should be aware that they live in the only country with rising wireless contract prices and slowing connection speeds. He said SoftBank is testing exponentially faster connections in Tokyo.

"I'm just throwing a stone into the pond," Son said. "I'm just making a wake up call."

Son's comments come as he courts U.S. business interests in Washington, where he is to address the U.S. Chamber of Commerce. Federal antitrust regulators appear wary to allow the country's four major wireless carriers to become three as a result of a deal between T-Mobile and Sprint.

Son, whose company owns a large stake in Sprint, also told PBS' Charlie Rose that he would wage a price war to break up a wireless duopoly in the U.S. between AT&T and Verizon.

—By CNBC's Jeff Morganteen. Follow him on Twitter at @jmorganteen and get the latest stories from "Squawk on the Street." Reuters contributed to this report.