Prospectus Supplement No. 11 Filed Pursuant to Rule 424(b)(3)
(To Prospectus Dated May 19, 2000) Registration No. 333-35412
Prospectus Supplement
Dated November 22, 2000
This prospectus relates to the resale by the holders of our:
o $450,000,000 principal amount of 5.0% convertible notes due 2010, and
o the shares of Class A common stock issuable upon conversion of the
notes.
This prospectus supplement should be read in conjunction with, and may not be
delivered or utilized without, the prospectus dated May 19, 2000. The terms of
the notes are set forth in the prospectus.
The information in the table appearing under the heading "Selling
Securityholders" on page 33 in the prospectus is hereby amended by adding the
information below with respect to selling securityholders not previously listed
in the prospectus or in any amendments or supplements thereto, and by
superceding the information with respect to selling securityholders previously
listed in the prospectus or in any amendments or supplements thereto that are
listed below:
<TABLE>
<CAPTION>
Number of Shares Percentage of
Principal Amount of Class A Common Number of Class A
at Maturity of 5.0% Stock Issuable Shares of Class Common Stock
Notes Beneficially Upon Conversion of A Common Stock Outstanding as
Owned That May the 5.0% Notes That Benefically of November
Selling Securityholders be Sold May be Sold Owned** 21, 2000**
----------------------- ------------------- ------------------- --------------- --------------
<S> <C> <C> <C> <C>
Minnesota Power, Inc. $750,000 14,563 -- *
<FN>
* Less than 1%.
** In addition to the shares issuable upon conversion of the notes.
*** Includes shares issuable upon conversion of the notes and additional shares
beneficially owned as of November 21, 2000.
</FN>
</TABLE>
