Does ATT own dish network

No, AT&T does not own DISH Network. Charlie Ergen is the owner of DISH Network & founded EchoStar Communications Corporation with Candy Ergen, and James DeFranco in 1980, DISH Network was then established in March 1996 and the two companies officially split in 2008, Charlie Ergen remains at the helm of both entities, therefore Charlie Ergen owns EchoStar Communications Corporation & DISH Network.