Nickeloeon (commonly referred to as Nick) is an American cable television network owned by Viacom International, founded in 1979 as Pinwheel. The Pinwheel name was used until 1981. The channel is found in many different countries, including Nick UK and Nickelodeon Australia. Nick is also split up into several blocks, such as Nick at Nite and Nick Jr.. The channel focuses on children from ages 7 through 12. Nick at Nite is meant for older children who have outgrown the channel and Nick Jr. focuses on children ages 2 through 6. Nickelodeon directly competes with Cartoon Network for the adolescent viewing market.