The National Broadband Network (NBN) is Australia's national wholesale open-access data network. It includes wired and radio communication components rolled out and operated by NBN Co, a government-owned corporation. Internet service providers, known under NBN as retail service providers (or RSPs), contract with NBN to access the data network and sell fixed Internet access to end users.
Rationales for this national telecommunications infrastructure project included replacing the existing copper cable telephony network that is approaching end of life, and the rapidly growing demand for Internet access. As initially proposed by the Rudd government in 2009, wired connections would have provided up to 100 Mbit/s (later increased to 1000 Mbit/s), although this was decreased to a minimum of 25 Mbit/s in 2013 after the election of the Abbott government.