Greenbaum Joins Netcom as Senior Vice President and General Manager of Single User Markets.

ENGLEWOOD, Colo.--(BUSINESS WIRE)--Nov. 17, 1998--

Greenbaum Brings More Than Fifteen Years

of Sales & Marketing Experience

With Special Expertise in the Internet Business

ICG Communications, a leading integrated communications provider (ICP), today announced that Michael D. Greenbaum has joined its San Jose, California-based Internet subsidiary, NETCOM On-Line Communication Services, Inc., as senior vice president and general manager of single user markets. Greenbaum comes to Netcom with more than 15 years of marketing and sales experience in the Internet, on-line services, software and hardware markets.

"We're delighted to have Michael on board," said Eric W. Spivey, Chairman and CEO for Netcom. "Michael will lead our efforts to strengthen Netcom's position in the individual, professional and very small office Internet markets. Our priority continues to be in providing innovative and complete Internet solutions that meet our customers' growing communications needs and Michael has proven industry experience to help us deliver these goals."

Prior to joining the company, Greenbaum was vice president of sales and marketing at AppliedTheory Communications, a New York based ISP. Greenbaum was also vice president of marketing and worldwide communications at Borland International where he built an award-winning company Internet site. Greenbaum also served as vice president of business development of the small business market at Bell Atlantic. There he was responsible for partnerships and regulation issues. He later served as vice president of the company's Internet division where he developed its presence as an Internet service provider. Greenbaum was also the general manager of Prodigy Services Co. where he was responsible for both consumer and business applications. Greenbaum's business experience began in sales, marketing and business development with IBM.

"Netcom has continually proven to be a pioneer in the Internet space," stated Michael Greenbaum, senior vice president and general manager of single user markets at Netcom. "I look forward to the opportunity and on-going challenges to provide customers with the latest fundamentals to create a positive experience on the net."

Greenbaum holds a Bachelor's Degree in Arts from Western Reserve University. He is a public trustee of the Association of American Colleges and Universities and writes a monthly marketing column for Boardwatch Magazine.

About ICG NETCOM

ICG Netcom is the brand name for products and services from ICG Communications, Inc. (Nasdaq:ICGX) and ICG's subsidiary, NETCOM On-Line Communication Services, Inc. The combined entity is a leading integrated communications provider (ICP) offering high-quality telecommunications services. Headquartered in Englewood, Colo., ICG has extensive switched fiber-optic networks and offers local, long distance and enhanced telephony and data services in California, Colorado, the Ohio Valley and parts of the southeastern United States. The company provides Internet communication solutions, connectivity and web site hosting to individuals and to small- and medium-sized businesses through its subsidiary, NETCOM On-Line Communication Services, Inc. ICG also is a leading designer and installer of copper, fiber and wireless infrastructure for buildings and campuses. Further information is available on Netcom's web site located at http://www.netcom.com/.