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Exhibit 21
LUCENT TECHNOLOGIES INC. SUBSIDIARIES
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NAME JURISDICTION OF ORGANIZATION
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Lucent Technologies Argentina S.A. Argentina
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Lucent Technologies Australia Pty. Ltd. Australia
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Lucent Technologies Austria Ges.m.b.H. Austria
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Lucent Technologies Middle East W.L.L. Bahrain
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Lucent Technologies Foreign Sales Corporation Barbados
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Lucent Technologies Belgium S.A./N.V. Belgium
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Lucent Technologies Network Systems Belgium S.A./N.V. Belgium
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Lucent Technologies (Bermuda) Ltd. Bermuda
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Lucent Technologies Brasil Ltda. Brazil
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Lucent Technologies World Services, Inc. Brunei
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Lucent Technologies Eurasia Ltd. Bulgaria
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Telecommunications Radioelectriques et Telephoniques (TRT) Cameroon
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Lucent Technologies Canada Inc. Canada
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Lucent Technologies (Chile) Limitada Chile
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Lucent Technologies Colombia S.A. Colombia
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Lucent Technologies de Costa Rica X.X. Xxxxx Rica
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Lucent Technologies s.r.o. Czech Republic
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Lucent Technologies EMEA B.V. Czech. Republic
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LYCOM A/S Denmark
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Lucent Technologies Hispaniola C. por A. Dominican Republic
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EcuaLucent Technologies S.A. Ecuador
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Lucent Technologies International Inc. Egypt
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Lucent Technologies El Salvador S.A. de C.V. El Salvador
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AST Electronique S.A. France
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Barphone Services S.A. France
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Distrimatel S.A.R.L. France
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Lucent Technologies BCS S.A. France
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Lucent Technologies Holding France S.A. France
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Lucent Technologies Network Systems France S.A. France
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Telecommunications Radioelectriques et Telephoniques (TRT) France
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NAME JURISDICTION OF ORGANIZATION
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Lucent Technologies Business Communications Systems
and Microelectronics GmbH Germany
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Lucent Technologies Holding GmbH Germany
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Lucent Technologies Network Fibre Cables GmbH Germany
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Lucent Technologies EMEA B.V. Greece
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Lucent Technologies de Guatemala S.A. Guatemala
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Lucent Technologies de Honduras S.A. Honduras
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Lucent Technologies World Services, Inc. (Honduras Branch Office) Honduras
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Lucent Technologies Asia/Pacific (H.K.) Ltd. Hong Kong
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Lucent Technologies Asia/Pacific Inc. Hong Kong
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Lucent Technologies Korea Ltd. Hong Kong
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Lucent Technologies Business Communications Systems Hungary Kft. Hungary
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Lucent Technologies India Pvt. Ltd. India
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Lucent Technologies Asia/Pacific Inc. Indonesia
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Lucent Technologies Network Systems Nederland B.V. Indonesia
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Lucent Technologies World Services Inc. Indonesia
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Lucent Technologies Ireland Ltd. Ireland
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Lucent Technologies Network Systems Ireland Ltd. Ireland
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Microwave Radio Ltd. Ireland
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Telectron na Farraige Moire Teoranta Ireland
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Lucent Technologies Belgium S.A./N.V. Israel
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Lucent Technologies Italia S.p.A. Italy
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Lucent Technologies Japan Ltd. Japan
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Lucent Technologies EMEA B.V. Kazakstan
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Lucent Technologies Eurasia Ltd. Kazakstan
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Lucent Technologies World Services Inc. Kenya
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Lucent Technologies Korea Ltd. Korea
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Lucent Technologies World Services Inc. Kuwait
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Lucent Technologies Eurasia Ltd. Lithuania
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Lucent Technologies (Malaysia) Sdn. Bhd. Malaysia
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NAME JURISDICTION OF ORGANIZATION
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ATTEL del Norte, S.A. de C.V. Mexico
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Informatica y Telecomunicaciones, S.A. de C.V. Mexico
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Integradora de Telecomunicaciones, S.A. de C.V. (INTELSA) Mexico
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ITSA Servicios S.A. de C.V. Mexico
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Lucent Technologies Business Communication Systems de Mexico, S.A. de C.V. Mexico
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Lucent Technologies Consumer Products Mexico, S.A. de C.V. Mexico
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Lucent Technologies de Mexico S.A. de C.V. Mexico
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Lucent Technologies Holdings de Mexico S.A. de C.V. Mexico
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Lucent Technologies International Inc. Mexico
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Lucent Technologies Microelectronica de Mexico S. A. de C. V. Mexico
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Lucent Technologies Productos de Consumo de Mexico S.A. de C.V. Mexico
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Lucent Technologies Productos de Consumo de Monterrey S.A. de C.V. Mexico
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Soporte a Sistemas de Informatica Y Telecomunicaciones S.A. de C.V. Mexico
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Virmar Telecomunicaciones S.A. de C.V. Mexico
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Bedrijvencomplex Huizen/Hilversum C.V. Netherlands
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Lucent Technologies BCS Nederland B.V. Netherlands
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Lucent Technologies EMEA B.V. Netherlands
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Lucent Technologies EMEA Services B.V. Netherlands
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Lucent Technologies EMEA Trading B.V. Netherlands
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Lucent Technologies Network Systems Nederland B.V. Netherlands
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Lucent Technologies WCND Utrecht B.V. Netherlands
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PTS Software B.V. Netherlands
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Lucent Technologies (NZ) Limited New Zealand
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Lucent Technologies Nicaragua S.A. Nicaragua
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Telecommunications Radioelectriques et Telephoniques (TRT) Oman
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Lucent Technologies (China) Co., Ltd. People's Republic of China
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Lucent Technologies (Shanghai) International Enterprises, Ltd. People's Republic of China
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NAME JURISDICTION OF ORGANIZATION
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AT&T Qingdao Power Systems Company, Ltd. People's Republic of China
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AT&T Qingdao Telecommunications Systems Ltd. People's Republic of China
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Telecommunications Radioelectriques et Telephoniques (TRT) Pakistan
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Lucent Technologies World Services, Inc. Panama
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Lucent Technologies del Peru S.A. Peru
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Lucent Technologies Philippines Inc. Philippines
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Telecommunications Radioelectriques et Telephoniques (TRT) Philippines
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Lucent Technologies BCS Polska Sp. z o.o Poland
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Lucent Technologies Network Systems Poland S.A. Poland
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Lucent Technologies Sp. z o.o. Poland
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Lucent Technologies Puerto Rico Inc. Puerto Rico
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Lucent Technologies World Services Inc. Puerto Rico
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Lucent Technologies Eurasia B.V. Romania
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A/O Lucent Technologies Russian Federation
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Lucent Technologies EMEA B.V. Russian Federation
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Lucent Technologies Eurasia Ltd. Russian Federation
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Lucent Technologies International Inc. Saudi Arabia
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Telecommunications Radioelectriques et Telephoniques (TRT) Saudi Arabia
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Lucent Technologies Consumer Products Pte. Ltd. Singapore
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Lucent Technologies Investment Asia Pte. Ltd. Singapore
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Lucent Technologies Investments Pte. Ltd. Singapore
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Lucent Technologies Microelectronics Pte. Ltd. Singapore
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Lucent Technologies Singapore Pte. Ltd. Singapore
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Lucent Technologies EMEA B.V. (Slovak Rep. office) Slovak Republic
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Lucent Technologies Slovensko s.r.o. Slovak Republic
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Lucent Technologies South Africa (Proprietary) Ltd. South Africa
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AT&T Microelectronica de Espana, S.A. Spain
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Lucent Technologies Microelectronica S.A. Spain
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Lucent Technologies Network Systems Espana S.A. Spain
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Lucent Technologies World Services, Inc. Spain
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Lucent Technologies Asia/Pacific Inc. Sri Lanka
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Lucent Technologies Sweden A.B. Sweden
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NAME JURISDICTION OF ORGANIZATION
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Lucent Technologies A.G. Switzerland
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Lucent Technologies International Purchasing Company Taiwan
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Lucent Technologies Taiwan Inc. Taiwan
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Lucent Technologies Microelectronics Thailand Ltd. Thailand
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Lucent Technologies Thailand Inc. Thailand
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Lucent Technologies International Inc. UAE (United Arab Emirates)
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AP Telecommunications UK Ltd. United Kingdom
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AT&T Business Communications Europe Ltd. United Kingdom
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Lucent Technologies Network Systems UK Ltd. United Kingdom
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Lucent Technologies UK Limited United Kingdom
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Lucent Technologies Wireless Ltd. United Kingdom
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Telectron Systems Ltd. United Kingdom
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Western Electric Company, Ltd. United Kingdom
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Lucent Technologies EMEA B.V. Ukraine
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Lucent Technologies EMEA Services B.V. Ukraine
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Lucent Technologies Eurasia Ltd. Ukraine
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AT&T Kazakstan Ltd. Delaware
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AT&T Systems & Technology Africa Inc. Delaware
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ATOR Corporation New York
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Bell Laboratories, Inc. Delaware
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Bell Telephone Laboratories Inc. Delaware
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Litespec, Inc. Delaware
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Loose Tube Inc. Delaware
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Lucent Technologies Americas Inc. Delaware
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Lucent Technologies Asia/Pacific Inc. Delaware
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Lucent Technologies Construction Services, Inc. Delaware
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Lucent Technologies Eastern Ventures Inc. Delaware
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Lucent Technologies Engineering Inc. Delaware
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Lucent Technologies Eurasia Ltd. Delaware
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Lucent Technologies Holdings Inc. Delaware
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Lucent Technologies International Inc. Delaware
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Lucent Technologies International Purchasing Company Delaware
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NAME JURISDICTION OF ORGANIZATION
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Lucent Technologies Management Services Inc. Delaware
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Lucent Technologies Maquiladoras Inc. Delaware
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Lucent Technologies of Tampa Inc. Delaware
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Lucent Technologies Realty Inc. New Jersey
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Lucent Technologies Services Company Inc. Delaware
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Lucent Technologies Taiwan Inc. Delaware
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Lucent Technologies Technical Services Company Inc. Delaware
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Lucent Technologies Thailand Inc. Delaware
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Lucent Technologies Western Investments Inc. Delaware
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Lucent Technologies World Services Inc. Delaware
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MRAC, Inc. Delaware
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Nassau Metals Corporation Delaware
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NCS OSP Development Corp. Delaware
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NCS Ventures, Inc. Delaware
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Telecommunications Technology Middle East Inc. Delaware
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Western Electric Company, Inc. Delaware
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Western Electric International Incorporated North Carolina
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Lucent Technologies Ventures Inc. Delaware
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Lucent Technologies Venezuela S.A. Venezuela
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Lucent Technologies Asia/Pacific Inc. Vietnam
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