Prospectus Supplement No. 9 Filed Pursuant to Rule 424(b)(3) (To Prospectus Dated May 19, 2000) Registration No. 333-35412 Prospectus Supplement Dated November 17, 2000 This prospectus relates to the resale by the holders of our: * $450,000,000 principal amount of 5.0% convertible notes due 2010, and * 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: 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** 16, 2000** ----------------------- ------------------- ------------------- --------------- -------------- Allstate Insurance Company $2,150,000 41,747 -- * Bank Austria Cayman Island, Ltd. $0 0 -- * Bankers Trust Company Trustee for Chrysler Corp. EMP #1 Pension Plan DTD 4/1/89 $0 0 -- * Bear, Stearns & Co., Inc. (1) $0 0 -- * Credit Suisse First Boston Corporation (1) $500,000 9,708 -- * Goldman Sachs and Company (1) $510,000 9,902 -- * Granville Capital Corporation $9,000,000 174,757 -- * Morgan Stanley & Co. (1) $750,000 14,563 -- * Motion Picture Industry Health Plan - Active Member Fund $1,015,000 19,708 -- * Motion Picture Industry Health Plan - Active Member Fund $505,000 9,805 -- * Putnam Convertible Income Growth Trust $2,800,000 54,368 -- * UBS Warburg LLC $0 0 -- * White River Securities LLC (1) $0 0 -- * =========== ======= ==== ==== TOTAL $17,230,000 334,558 -- ** 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 16, 2000. (1) Entity shown in the table, or an affiliate of the entity, was one of the initial purchasers of these notes and/or other notes of the Company that were sold in a private placement. The initial purchasers acquired such notes at a discount. In addition, some of these entities or their affiliates have participated in other offerings of securities by the Company and/or have performed other banking services for which they have received fees.