Fiber to the premises in the United States are primarily covered by Google Fiber, Verizon, and Lightower. By company Open-access networks Several carriers, municipalities, and planned communities across America are deploying their own fiber networks. Open Access Networks differ from incumbent models by being horizontally integrated, which allows for multiple service providers to operate on one network and promotes market competition. Among them is the City of Burlington, Vermont "Burlington Telecom" and Lafayette, Louisiana. The city of San Francisco, California has released a feasibility study for government and public broadband via fiber optics. This was the result of San Francisco supervisors' vote to adopt a resolution to encourage certain city departments to consider installing FTTP for use primarily in city operations. This then evolved into the fiber feasibility study which also includes "services to businesses and residents." The study estimated build-out costs of $564 million. It has been released as a draft in order for members of the public to provide comments and input. Service providers using Active FTTP technologies include YRT2 Inc.; PAXIO Inc.; SureWest; iProvo; Grant County, Washington; UTOPIA; CDE Lighband, Clarksville, TN and Broadweave Networks. Service providers using passive optical networks include Verizon (FiOS), AT&T (U-verse), and several greenfield development networks. There is also another FTTH provider UTOPIA, based in Salt Lake County, Utah, which currently services 11 cities. This municipal fiber network is an open network to many local ISPs, including Xmission, Sumo, and Veracity, and other service providers who have bought onto the network. The speeds of the network range around 100 Mbit/s to 1 Gbit/s for residential use and 20 Mbit/s to 10 Gbit/s for business use. Hargray Communications—Hilton Head Island, SC—Savannah, GA to Beaufort, SC—offers metro e - symmetrical data (up to 1g over 1g) 50x5 EPB Fiber Optics provides a GPON network that offers fiber to the premise to Chattanooga, TN and some neighboring cities. They offer 1Gig internet service, which is the fastest speed available in the nation, as well as TV and phone service. In 2008, Greenlight was introduced in Wilson, North Carolina, which created the system at a cost of $28 million. The reason was the lack of interest in fiber optic from private companies. With job losses, a major problem in Salisbury, North Carolina, the concept of municipal broadband was studied beginning in 2005. City council members looked at Wilson's system as an example of what Salisbury could