The US telecom industry called on the Federal Communications Commission ... to block two cities' plans to expand high-speed internet services to their residents. USTelecom, which represents telecom giants Verizon, AT&T and others, wants the FCC to block expansion of two popular municipally owned high-speed internet networks. Chattanooga has the largest high-speed internet service in the US, offering customers access to speeds of 1 gigabit per second - about 50 times faster than the US average. The service, provided by municipally owned EPB, has sparked a tech boom in the city and attracted international attention. EPB is now petitioning the FCC to expand its territory. Comcast and other companies have previously sued unsuccessfully to stop EPB's fibre optic roll out. Wilson [North Carolina], a town of a little more than 49,000 people, launched Greenlight, its own service offering high-speed internet, after complaints about the cost and quality of Time Warner cable's service. Time Warner lobbied the North Carolina senate to outlaw the service and similar municipal efforts. In January this year, the FCC issued the Gigabit City Challenge", calling on providers to offer gigabit service in at least one community in each state by 2015. The challenge has come amid intense lobbying from cable and telecoms firms to stop municipal rivals and new competitors including Google from building and expanding high speed networks.