============================================================================== 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 (Date of earliest event reported): January 16, 2003 Crown Castle International Corp. (Exact Name of Registrant as Specified in its Charter) Delaware 0-24737 76-0470458 (State or Other (Commission File (IRS Employer Jurisdiction of Number) Identification Incorporation) Number) 510 Bering Drive Suite 500 Houston, TX 77057 (Address of Principal Executive Office) Registrant's telephone number, including area code: (713) 570-3000 ============================================================================== This document includes "forward-looking" statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Other than statements of historical fact, all statements regarding industry prospects, the consummation of the transactions described in this document and the Company's expectations regarding the future performance of its businesses and its financial position are forward-looking statements. These forward-looking statements are subject to numerous risks and uncertainties. Item 9. Regulation FD Disclosure On January 16, 2003, Crown Castle International Corp. ("Company") sent a notice to the directors and executive officers of the Company informing them that, as a result of a change in the Company's 401(k) plan provider, between the dates of January 24, 2003 and on or about February 17, 2003, there will be a trading blackout period with respect to the trading of equity securities of the Company acquired in connection with service or employment to the Company. A copy of such notice is filed herewith as Exhibit 99.1 and is incorporated herein by reference. This exhibit is not filed but furnished pursuant to Regulation FD. 1 Item 7. Financial Statements and Exhibits (c) Exhibits Exhibit No. Description 99.1 Notice to directors and executive officers of Crown Castle International Corp. 2 SIGNATURES 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 hereunto duly authorized. CROWN CASTLE INTERNATIONAL CORP. By: /s/ E. Blake Hawk ------------------------------ Name: E. Blake Hawk Title: Executive Vice President and General Counsel Date: January 16, 2003 3 EXHIBIT INDEX Exhibit No. Description 99.1 Notice to directors and executive officers of Crown Castle International Corp. 4