EXHIBIT 21

LUCENT
TECHNOLOGIES INC. SUBSIDIARIES

|Ascend Communications (Bermuda) Holding Limited                |  | Bermuda    
|-------------------------------------------------------------- |  | -----------
|Lucent Technologies Comercio e Servicio Ltd.                   |  | Brazil     
|Lucent Technologies Canada Corp.                               |  | Canada     
|Lucent Technologies El Salvador S.A. de C.V.                   |  | El Salvador
|Lucent Technologies Beteiligungs GmbH & Co. KG                 |  | Germany    
|Lucent Technologies Hindustan Pvt. Ltd.                        |  | India      
|Lucent Technologies Holdings and Finance Company Limited       |  | Ireland    
|Lucent Technologies Treasury Services                          |  | Ireland    
|Lucent Technologies Italia S.p.A.                              |  | Italy      
|Lucent Technologies EMEA B.V.                                  |  | Netherlands
|Lucent Technologies Nederland B.V.                             |  | Netherlands
|SRA Computer C.V.                                              |  | Netherlands
|Lucent Technologies Optical Networks (China) Ltd.              |  | P.R.C.     
|Lucent Technologies Qingdao Telecommunications Equipment  Ltd. |  | P.R.C.     
|Lucent Technologies (China) Co., Ltd.                          |  | P.R.C.     
|Lucent Technologies (Shenzhen) Co., Ltd.                       |  | P.R.C.     
|Lucent Technologies Parsipanis S.L.                            |  | Spain      
|Lucent Technologies Thailand Inc. (Thailand branch)            |  | Thailand   
|Lucent Technologies Holdings UK Limited                        |  | UK         
|Lucent Technologies UK Limited                                 |  | UK         
|Lucent Technologies Group UK Ltd                               |  | UK         
|Lucent Technologies Capital Ireland                            |  | UK         
|Ascend Communications, Inc.                                    |  | US         
|Bell Laboratories, Inc.                                        |  | US         
|Day Investment Corp.                                           |  | US         
|First Beacon Insurance Company                                 |  | US         
|KED Funding LLC                                                |  | US         
|LTI NJ Finance LLC                                             |  | US         
|LTI Properties Finance LLC                                     |  | US         

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|LTI Properties Holdings LLC                     |  | US
|----------------------------------------------- |  | --
|Lucent Asset Management Corporation             |  | US
|Lucent Technologies Canada LLC                  |  | US
|Lucent Technologies Construction Services, Inc. |  | US
|Lucent Technologies Integrated Solutions Inc.   |  | US
|Lucent Technologies GRL LLC                     |  | US
|Lucent Technologies Holdings LLC                |  | US
|Lucent Technologies International Inc.          |  | US
|Lucent Technologies Management Services Inc.    |  | US
|Lucent Technologies World Services Inc.         |  | US
|Lucent Venture Partners Inc.                    |  | US
|NCS OSP Development Corp.                       |  | US
|New Jersey Nanotechnology Consortium LLC        |  | US
|SRA Holdings LLC                                |  | US
|SRA Investments LLC                             |  | US
|Stratus Computer, Inc.                          |  | US
|Stratus World Trade Corp.                       |  | US
|Telica, Inc.                                    |  | US
|Western Electric Company, Incorporated          |  | US
|WM Funding LLC                                  |  | US