"The marketplace for high-capacity services, including special access, is competitive, and it is growing increasingly competitive as wireless backhaul generates increasing demand," Verizon said in a statement.  "Customers have more choices as cable providers, fixed wireless providers, and other competitive providers have expanded their offerings to meet the growth in demand."

Corbett disputed Verizon's numbers.

Members of NoChokepoints include Public Knowledge, Sprint Nextel, U.S. Cellular and XO Communications.

The IDG News Service