The National Broadband Network (NBN) is a high-speed broadband network currently being developed in Australia. It will provide internet access to homes and businesses through a combination of fibre optic, fixed wireless, and satellite technologies. The network is estimated to cost $35.9 billion to construct over 10 years, with the government investing $27.5 billion. NBN Co, a government-owned corporation, was established to build and operate the NBN. Construction began in 2010 and the network is planned to reach 93% of the population by 2021. The NBN will replace existing copper and cable networks and aims to provide broadband speeds of up to 1 gigabit per second.