EXHIBIT 21 SUBSIDIARIES OF NEWBRIDGE NETWORKS CORPORATION The names of certain other subsidiaries, which considered in the aggregate would not constitute a significant subsidiary, have been omitted. Jurisdiction Name of of Incorporation Subsidiary or Organization - ---------- --------------- Newbridge Networks Inc. Delaware Newbridge Networks Limited England and Wales Newbridge Networks Services SL United Kingdom Newbridge Networks (Asia) Limited Hong Kong Transistemas S.A. Argentina Newbridge Networks Telecomunicacoes Ltda. Brazil Newbridge Networks de Mexico, S.A. de C.V. Mexico Newbridge Networks S.A. France Newbridge Networks (Middle East) WLL Bahrain Nihon Newbridge Networks Corporation Japan Newbridge Networks (Australia) Pty. Ltd Australia Newbridge Networks Korea Ltd. Korea Newbridge Networks Venezuela, S.A. Venezuela Newbridge Networks GmbH Germany Newbridge Networks Ireland Ireland Newbridge Networks (Pty) Ltd South Africa Newbridge (Barbados) Corporation Barbados Newbridge Networks S.p.A. Italy Newbridge Networks GmbH (Austria) Austria Coasin Chile S.A. Chile Acacia Limited Barbados Newbridge Networks (APL) L. BHD Malaysia Newbridge Networks SDN. BHD. Malaysia Newbridge Networks A/S Denmark Newbridge Networks AB Sweden Newbridge Networks S.L. Spain Newbridge Networks Benelux S.A. Belgium Newbridge Networks B.V. Netherlands Page 229