investors

DECEMBER 10, 1999 – HOUSTON, TEXAS – Crown Castle International Corp. (the "Company") (NASDAQ:TWRS) announced today that it has extended its solicitation of consents from the holders of its 10-5/8% Senior Discount Notes due 2007 (the "Notes") and its 12-3/4% Senior Exchangeable Preferred Stock due 2010 (the "Preferred Stock") to certain amendments to the instruments governing these securities.

The consent solicitation will now expire at 12:00 p.m., New York City time, on Friday, December 17, 1999, unless further extended. The Company has reached a tentative agreement regarding the proposed amendments with a majority of the holders of the affected securities on modified terms, including an increase in the consent payment. The Company will distribute supplemental consent solicitation materials setting forth the terms of these modifications as soon as practicable.

Holders of record of the Notes and/or the Preferred Stock as of November 22, 1999 are entitled to consent to the proposed amendments. Adoption of the proposed amendments, and payment of the consent payment, is conditioned upon the receipt of the consent of a majority of the holders of each of the Notes and Preferred Stock.

For additional information regarding consent delivery procedures and the conditions of the consent solicitation, reference is made to the Consent Solicitation Statement dated November 23, 1999 and related documents. These materials may be obtained by contacting Mackenzie Partners, Inc., the Tabulation Agent and Information Agent for the consent solicitation at 800-322-2885 (toll free) or 212-929-5500.

Salomon Smith Barney and Goldman, Sachs & Co. are the Solicitation Agents for the consent solicitation. Questions concerning the consent solicitation may be directed to Salomon Smith Barney, Attention: Liability Management Group, at 800-558-3745 (toll free) or 212-723-6106, or Goldman, Sachs & Co. at 212-902-0557.

Crown Castle International Corp. is a leading provider of communication sites and wireless network services and provides an array of related infrastructure and network support services to the wireless communications and radio and television broadcasting industries in the United States and United Kingdom. Pro forma for all closed and previously announced transactions, Crown Castle International owns, operates and manages approximately 10,000 wireless communication towers internationally. For more information on Crown Castle International, visit: www.crowncastle.com.

Contacts: Charles C. Green, III, CFO
Crown Castle International
713-570-3000

Ken Dennard / kdennard@easterly.com
Lisa Elliott / lisae@easterly.com
Easterly Investor Relations
713-529-6600