Attachment 5

Subsidiaries and Related Companies of NTT Communications Corporation (companies in which NTT Communications holds a 20% share or more)

[International]

NTT America, Inc. NTT do Brasil Telecomunicações Ltda. NTT Deutschland GmbH NTT Singapore Pte. Ltd. NTT MSC Sdn. Bhd. NTT Europe Ltd. NTT France S.A. NTT (Hong Kong) Limited NTT Australia Pty. Ltd. NTT Taiwan Ltd. BEIJING TELECOM NTT ENGINEERING CO., LTD. SHANGHAI NTT TELECOMMUNICATIONS ENGINEERING CO., LTD. SMART NTT Multimedia, Inc. Sri Lanka Telecom Ltd. NTT INTERNATIONAL CORPORATION Japan Cyberview Investment Corporation NTT WORLDWIDE TELECOMMUNICATIONS CORPORATION NTT WORLDWIDE NETWORK CORPORATION NTT Investment Singapore Pte. Ltd. Meganet Communications Sdn. Bhd. SMART Communications, Inc.

[System Integration & Information Processing]

NTT PC Communications Incorporated NTT NaviSpace Corporation INTERNET MULTIFEED CO. NTT Visual Communication Systems Inc. INFAS & NTT NETWORK Co., Ltd NTT Satellite Communications Inc.

[Facility Engineering]

NTT FANET Systems Corporation Business Communication System Engineering Co., Ltd Nippon Intelligent Building Systems Inc. NIPPON FACILITY SERVICE CO., LTD NTT Intelligent Planning and Development Corporation

[Telecommunication Engineering]

NTT WORLD ENGINEERING MARINE CORPORATION