List of Comcast, Verizon, AT&T, and Disney assets

Owners of American media
Over time the amount of media merging has increased and the number of media outlets have increased. That translates to fewer companies owning more media outlets, increasing the concentration of ownership. In 1983, 90% of US media was controlled by 50 companies; today, 90% is controlled by just 5 companies.

*Although Viacom and CBS Corporation have been separate companies since 2006, and Entercom nominally acquired CBS's radio assets in 2017, all three are partially owned subsidiaries of the private National Amusements company, headed by Sumner Redstone. As such, Paramount Home Media Distribution handles DVD/Blu-ray distribution for most of the CBS Corporation library. and now they are both owned by Verizon Communications.

The former News Corporation was split into two separate companies on June 28, 2013, with publishing assets and Australian media assets going to New News Corp, and broadcasting and media assets going to 21st Century Fox. Both companies remain under the control of Rupert Murdoch In 2018, most of 21st Century Fox, with the exception of its broadcast licenses and news and sports assets, will be sold to The Walt Disney Company.