1. © Copyright 2002 Frost & Sullivan. All Rights Reserved. U.S. Business Data Transport Services Market Data-Dependent Companies Drive Demand “The business data transport services market in the United States continues to show potential for growth, despite the impact of the economic downturn in the telecommunications industry.” Telecom Services Analyst Team Frost & Sullivan

2. © Copyright 2002 Frost & Sullivan. All Rights Reserved. Key Features Frost & Sullivan Provides: Detailed insights into recent developments and trends Drivers, restraints, challenges, and strategic recommendations Analytical insights on ‘hot topics’ and emerging applications in the business data transport services market Market sizing and competitive analysis Market forecasts and opportunity analysis Yearly assessments

3. © Copyright 2002 Frost & Sullivan. All Rights Reserved. Coverage: The United States Proven methodology based on extensive primary and secondary data and research Focused information and analyses that cover market and technology issues Credible data and analysis highlighting industry dynamics Precise strategies to help you create winning business plans What We Offer

4. © Copyright 2002 Frost & Sullivan. All Rights Reserved. Current Market Participants Find out how you compare with the competition Assess current and future drivers and restraints Determine and exploit new market opportunities New Entrants Calculate timescales for strategy implementation Position yourself to capitalize on the unmet needs of the market Investment Community Analyze long-term strategies of companies Determine participants that will outperform the competition Assess attractiveness of investing in the market Who Will Benefit?

5. © Copyright 2002 Frost & Sullivan. All Rights Reserved. Adelphia Communications Corp. Advanced TelCom Group, Inc. Arrow Communications, Inc. ATX Telecommunications Services Avista Communications/OneEighty Networks, Inc. Birch Telecom, Inc. Buckeye TeleSystem, Inc. Business Telecom, Inc. Capsule Communications Cavalier Telephone Corp. CGI CommuniGroup, Inc. Choice One Communciations, Inc. Citizens Communications/ Frontier Communications Key Market Participants Covad Communications Group, Inc. CTC Communications Corp. Electric Lightwave, Inc., Citizens Communications & Frontier Corp. Excel Telecommunications, Inc. Focal Communications Corp. Frame Relay Forum Global Crossing ICG Communications, Inc. Integra Telecom, Inc. Intermedia Communications, Inc. ITC-DeltaCom, Inc. KMC Telecom Holdings, Inc. Level 3 Communications, Inc.

6. © Copyright 2002 Frost & Sullivan. All Rights Reserved. Logix Communications Corp. McLeodUSA, Inc. NewSouth Communications Corp. NTELOS, Inc. NTS Communications, Inc. NTT Communications/Verio, Inc. PaeTec Communicaitons, Inc. Qwest Communications International, Inc. RCN Corp. Savvis Communications Corp. SBC Communications, Inc. Key Market Participants (cont’d) Sprint Corp. STAR Telecommunications, Inc. TDS Telecom Telergy Network Services, Inc. Teligent, Inc. Time Warner Telecom, Inc. TXU Communications Telecom Services US LEC Corp. Verizon Communications, Inc. Williams Communications LLC WorldCom, Inc. XO Communications, Inc.

7. © Copyright 2002 Frost & Sullivan. All Rights Reserved. Call toll free 877 G O F ROST (877.463.7876) Fax toll free 888.690.3329 E-mail myfrost@frost.com Visit www.frost.com For More Information