Stock Listing
NASDAQ: TLAB. Tellabs is a component of the NASDAQ Global Select Market, Ocean Tomo 300^™ Patent Index, the Standard & Poor’s 500 Index and several corporate responsibility indexes, including the Maplecroft Climate Innovation Index, FTSE4Good and 8 FTSE KLD indexes.

Voting Rights
All Tellabs stockholders are entitled to one vote for each share held. Only stockholders of record as of March 7, 2011, the record date for the annual meeting determined by the board of directors, are entitled to receive notice of, to attend and to vote at the annual meeting. For details, see Tellabs proxy statement.

Stockholders Owning More than 5% of
the Company's Shares
As of December 31, 2010:
Michael J. Birck
BlackRock Inc.
Janus Capital Management LLC

Independent Auditors
Ernst & Young LLP
Chicago, IL U.S.A.

2011 Stockholder Calendar
(Dates subject to change)

First Quarter 2011
Earnings Call: April 26, 7:30 a.m. CT

Second Quarter 2011
Annual Meeting
May 4, 2011, 2 p.m. CT
Northern Illinois University
1120 East Diehl Road
Naperville, IL 60563 U.S.A.

Earnings Call: July 26, 7:30 a.m. CT

Third Quarter 2011
Earnings Call: Oct. 25, 7:30 a.m. CT

Corporate Secretary
To request information, communicate with the board of directors, make a stockholder proposal or nominate a director, contact:
James M. Sheehan
Corporate Secretary
Tellabs, Inc.
1415 West Diehl Road
Naperville, IL 60563 U.S.A.

Transfer Agent
To transfer stock, change ownership, report lost or stolen certificates or change your address, contact:
Computershare Investor Services
+1.312.360.5389

Investor Relations
Tom Scottino
Senior Manager, Investor Relations
+1.630.798.3602
tom.scottino@tellabs.com

Tellabs Foundation
For information on grants in education, health and environment, visit www.tellabs.com/about/foundation.shtml, or contact:
Meredith Hilt
Executive Director,
Tellabs Foundation
meredith.hilt@tellabs.com

Locations
See www.tellabs.com/contact/locations.shtml for complete information.
Headquarters
1415 West Diehl Road
Naperville, IL 60563 U.S.A.
Phone: +1.630.798.8800
www.tellabs.com

Worldwide Sales and Service
Asia Pacific Phone: +65.6215.6411
Europe, Middle East and Africa Phone: +44.870.238.4700
Latin America and Caribbean Phone: +55.11.3572.6200
North America Phone: +1.630.798.8800

Trademarks
All trademarked or registered trademark product and service names used herein are the property of Tellabs or one of its affiliates in the United States and/or in other countries. All other product or company names used herein may be the property of their respective companies.

Certificate of Incorporation and Bylaws
Tellabs' current bylaws and certificate of incorporation are available online at www.tellabs.com/investors.