EXHIBIT No. 21
Tellabs Inc. and Subsidiaries
Subsidiaries of the Registrant
Name
State or Other Jurisdiction of Incorporation
Tellabs Operations, Inc.
Delaware
E. Coherent Communications Systems Ltd.
United Kingdom
Telecommunications Laboratories, Inc.
Illinois
Telecon Acquisition Corp.
Delaware
Tellabs Export, Inc.
Delaware
Tellabs Japan, Inc.
Delaware
Tellabs Manufacturing, Inc.
Delaware
Tellabs International, Inc.
Illinois
Tellabs Communications Canada Ltd.
Canada
Tellabs Netherlands B.V.
Netherlands
Tellabs do Brazil, Ltda.
Brazil
Tellabs N.Z. Ltd.
New Zealand
Tellabs H.K. Ltd.
Hong Kong
Tellabs Pty. Ltd.
Australia
Tellabs International de Mexico
Mexico
Tellabs Singapore Private Limited
Singapore
Tellabs Italia S.r.l.
Italy
Tellabs (Thailand) Co., Ltd.
Thailand
Tellabs Korea, Inc.
Korea
Tellabs (V.I.), Inc.
U.S. Virgin Islands
Tellabs India Private Limited
India
Tellabs Holdings B.V.
Netherlands
Tellabs Enterprises B.V.
Netherlands
Tellabs Oy
Finland
Kiinteisto Oy Mestarinkaare
Finland
Kiinteisto Oy Sinimaentie 6
Finland
Tellabs AB
Sweden
Tellabs (S.A.) (Proprietary) Limited
South Africa
Tellabs SAS
France
Tellabs Holdings, Ltd.
Ireland
Tellabs (Ireland) Ltd.
Ireland
Tellabs Ltd.
Ireland
Tellabs Southern Europe S.A.
Spain
Tellabs Gmbh
Germany
Tellabs Research Ltd.
Ireland
Tellabs U.K. Ltd.
United Kingdom
Tellabs Communications UK Limited
United Kingdom
Tellabs Communications Ireland Limited
Ireland
Tellabs Communications Technologies
Ireland
Tellabs Denmark A/S
Denmark
DSC Communications Polska Sp. z.o.o.
Poland
DSC Communications (India) Private Limited
India
DSC Communications TMN A/S
Denmark
FIBCOM India Ltd.
(40% Joint Venture)
White Oak Merger Corp.
Delaware
Tellabs TG, Inc.
Delaware
Tellabs Transport Group, Inc.
Quebec
NetCore Systems, Inc.
Delaware
Tellabs Mexico, Inc.
Delaware
Tellabs de Mexico, S.A. de C.V.
Mexico
