India, Dec. 5 -- The FCC's chairman proposed on Wednesday to distribute $9 billion over the next decade to carriers to build 5G networks in rural areas. But the agency is doing so only after finding out that Verizon, T-Mobile and U.S. Cellular wildly overstated their 4G coverage.

Specifically, an FCC report released on Wednesday found that Verizon, T-Mobile and U.S. Cellular provided inaccurate coverage maps about 40% of the time.

"The Commission dispatched Enforcement Bureau field agents to conduct speed tests of the Verizon, U.S. Cellular and T-Mobile networks," the FCC wrote in its 66-page report. "Commission field agents measured on-the-ground network performance in 12 states across six drive test routes, conducting a total of 24,649 ...