investors

JUNE 5, 2000 - WARWICK, ENGLAND - Crown Castle International Corp. (NASDAQ:TWRS) today announced that its subsidiary, Crown Castle UK Limited, has been awarded the contract for the network rollout of Europe's first planned 3G network on the Isle of Man. The network is being built by NEC and Siemens for Manx Telecom, a wholly owned subsidiary of BT.

Crown Castle's role is to provide turnkey project management, installation and commissioning of the 3G radio access network including site planning, design and build.

NEC will provide 3G infrastructure equipment, network planning and optimization, project delivery, operation and maintenance support. NEC has been carrying out extensive trials of this technology with both BT and Crown Castle since 1998.

Jonathan Harvey, NEC Projects Director, said, "We are proud to be working with BT on the roll out of the UMTS network on the Isle of Man and aim to ensure that our technology enables BT to be prepared for the forthcoming demand in high speed wireless data and multimedia services. It is NEC's goal to ensure that the solutions we provide meet the rapidly changing market that BT is serving."

Bob Giles, Crown Castle UK President & Chief Operating Officer, stated, "We are delighted once again to be first in a new wireless technology. By working with world-class strategic partners such as BT, NEC and Siemens, we are realizing the 3G vision and leading the way in the development of Mobile Internet. With our experience of planning, site acquisition, build and operation of wireless networks, we are advantageously placed to offer operators speed to market and cost effectiveness in 3G network rollout."

Extensive network planning will be required to ensure adequate coverage and capacity to accommodate the multi-media application requirements of 3G. Both NEC and Crown Castle bring a wealth of experience to the rollout of this network.

Crown Castle International Corp. engineers, deploys, owns and operates technologically advanced shared wireless infrastructure, including extensive networks of towers and rooftops as well as analog and digital audio and television broadcast transmission systems. The Company offers near-universal broadcast coverage in the United Kingdom and significant wireless communications coverage to 68 of the top 100 United States markets, more than 95 percent of the UK population and more than 92 percent of the Australian population. Pro forma for all closed and previously announced transactions, Crown Castle International owns, operates and manages over 11,000 wireless communication towers internationally. For more information on Crown Castle International, visit: www.crowncastle.com and www.3g-thefuture.com.

NEC Corporation (NASDAQ:NIPNY) (FTE:6701q.1) is a leading provider of Internet solutions, dedicated to meeting the specialised needs of its customers in the key computer, network and electron device fields through its three market-focused in-house companies; NEC Solutions, NEC Networks and NEC Electron Devices. NEC Corporation, with its in-house companies, employs more than 150,000 people worldwide and saw net sales of 4,759 billion Yen (approx. US$40 billion) in fiscal year 1998-1999. For further information, please visit the NEC home page at: http://www.nec-global.com

This press release contains forward-looking statements and information that are based on management's belief as well as assumptions made by and information currently available to management. Although Crown Castle believes that the expectations reflected in such forward-looking statements are reasonable, it can give no assurance that such expectations will prove to have been correct. Such statements are subject to certain risks, uncertainties and assumptions. Should one or more of these risks materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those expected. More information about potential factors, which could affect the company's financial results, is included in the Risk Factors sections of the company's filings with the Securities and Exchange Commission. The company assumes no obligation to update publicly any forward-looking statements, whether as a result of new information, future events or otherwise.

Contacts:

FOR: CROWN CASTLE INTERNATIONAL
Nick Davies
Director 3G
Crown Castle International
PO Box 98
Warwick
CV34 6TN
Tel: +44 (0)1926 416250
Mobile: +44 (0)374 111979
nick.davies@crowncastle.com

Press relations:
Edward Lloyd
Barrington Lloyd International
Tel: +44 (0)1799 506187
edward.lloyd@bli.co.uk

FOR: NEC
Jonathan Harvey
Business Development Manager
3G Mobile Systems
NEC House
1 Victoria Road
London
W3 6BL
Tel: +44 (0)208 752 3734
jonathan.harvey@uk.neceur.com