EXHIBIT 21 ECHOSTAR DBS CORPORATIONS AND SUBSIDIARIES LIST OF SUBSIDIARIES <Table> <Caption> State or Country % of Name Doing Subsidiary of Incorporation Ownership Business As Echo Acceptance Corporation Colorado 100% EAC Dish Network Service Corporation Colorado 100% DNSC f/k/a Dish Installation Network Corporation Echosphere Corporation Colorado 100% Echosphere EchoStar International Corporation Colorado 100% EchoStar International or EIC EchoStar Real Estate Corporation Colorado 100% EREC EchoStar Satellite Corporation Colorado 100% ESC EchoStar Technologies Corporation Colorado 100% EchoStar f/k/a Houston Tracker Systems, Inc. Texas 100% Technologies or ETC EchoStar Space Corporation Colorado 100% Space </Table>