EXHIBIT 21 SUBSIDIARIES OF ARRIS GROUP, INC. AS OF DECEMBER 31, 2002 Arris Group, Inc. is the holding company for Arris International, Inc. and, as of December 31, 2002, owned approximately 85% of the Class A membership interest in Arris Interactive L.L.C. (the remaining Class A membership interest was held by Arris International, Inc.). Set forth below are the names of certain subsidiaries, at least 50% owned, directly or indirectly, of Arris Group, Inc. Indirect subsidiaries are direct subsidiaries of the company under which they are indented. <Caption> SUBSIDIARY STATE OR OTHER JURISDICTION OF INCORPORATION OR ORGANIZATION - ------------------------------------------------------ ------------------------------------------------------------ Arris Interactive L.L.C. Delaware Arris International, Inc. Delaware ANTEC Latin America, Inc. Sucursal Argentina Argentina Texscan Corporation Nevada ANTEC Europe Limited United Kingdom Antec International Corporation Barbados Texscan de Mexico, S.A., de C.V. Mexico Electronic Connector Corporation of Illinois Illinois Communicaciones Broadband S.A. de C.V. Mexico Power Guard, Inc. Illinois Electronic System Products, Inc. Illinois ANTEC Foreign Sales Corporation Barbados ANTEC Asset Management Company Delaware ANTEC Licensing Company Delaware Arris International Iberia, S.L. Spain ANTEC do Brasil LTDA Brazil Arris International Netherlands BV Netherlands ANTEC Pacific, Inc. Illinois ANTEC Spain, Inc. Illinois Keptel, Inc. Delaware Keptel de Mexico S.A. de C.V. Mexico Arris International Japan Kabushiki Katsha Japan ARRIS International Telecommunicaciones Chile