UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 8-K

CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

DATE OF REPORT          April 11, 2000

(Date of earliest event reported)         April 5, 2000

TELLABS, INC.
(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (630) 378-8800

N/A
(Former name or former address, if changed since last report)

Item 5. Other Events.

Restated Financial Statements

On April 5, 2000, Tellabs, Inc announced that, based on current estimates, it expects earnings for the quarter ended March 31, 2000 to be lower than analysts' estimates. Further details are contained in the press release of Tellabs, Inc., dated April 5, 2000, attached hereto as Exhibit 99.1 and incorporated herein by reference.

Item 7. Financial Statements and Exhibits.

   (c) Exhibits
     Exhibit 99.1 - Press Release of Tellabs, Inc., dated April 5, 2000.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

                       TELLABS, INC.
                     (Registrant)

                             /s Robert E. Swininoga
                           Robert E. Swininoga
                        Vice President and
                                      Principal Accounting Officer

April 11, 2000
(Date)

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