B2B Connect, Inc. Partners With Advanced Radio Telecom to Provide Broadband Services to Multi-tenant Office Buildings.

Business Editors, Technology Writers

BELLEVUE, Wash.--(BUSINESS WIRE)--July 11, 2000

Advanced Radio Telecom (ART) (Nasdaq:ARTT) today announced that B2B Connect, a leader in providing advanced full-service network-based Information Technology (IT) solutions to tenants of high-rise office buildings, has selected ART to provide Ethernet connectivity to support B2B Connect's metropolitan area networking requirements.

ART will provide connectivity at speeds ranging from 10 Mbps to 100 Mbps via a multi-year agreement for service in at least five major metropolitan markets across the country.

"We are excited to begin work with B2B Connect," said Robert S. McCambridge, president and COO of ART. "ART's high-speed broadband wireless Internet Protocol (IP) metropolitan network enables B2B Connect to provide cost-effective, reliable, value-added Internet access, remote collaboration and IT support services to meet the increasing demands of businesses. We look forward to growing our relationship with B2B Connect as we expand our network nationwide."

"ART's high-speed wireless ethernet connectivity represents a strong alternative and complement to wire-based metropolitan area networks," said Sunil Suri, Chairman and CEO of B2B Connect, Inc. "This partnership enables us to deliver advanced, reliable and accurate IT and communication services to a greatly expanded number of cities."

Last month, ART launched wireless broadband IP networks in Houston, Los Angeles, Phoenix, Seattle and Washington D.C. to go along with its existing network in San Jose. The company plans to initiate service in a total of 10 U.S. markets this year.

ART's broadband wireless IP network uniquely provides connectivity to office buildings not served by fiber connections. ART enables Internet Service Providers (ISPs), Application Service Providers (ASPs) and interexchange carriers (IXCs) to extend customer Local Area Networks (LANs) to Wide Area Networks at native LAN speeds. ART's services eliminate the need for local telephone hook-up and service can be provisioned in a matter of days, instead of weeks or even months.

About Advanced Radio Telecom

Advanced Radio Telecom Corp., headquartered in Bellevue, Wash., is a provider of broadband wireless IP access services at speeds up to 155 Mbps. ART currently owns and operates 100 Mbps broadband wireless metropolitan area networks in Houston, Los Angeles, Phoenix, San Jose, Seattle and Washington, D.C. and plans to expand to 40 markets over the next three years. ART is a Cisco Powered Network(TM) service provider. ART has a nationwide footprint of 39GHz spectrum licenses in the United States, and owns 26GHz and/or 39GHz spectrum licenses in the United Kingdom and several Scandinavian countries. For more information, please visit ART's web site at www.ipsp.com.

About B2B Connect

Headquartered in Santa Clara, Calif., B2B Connect provides a complete range of enterprise-level IT solutions over a Quality of Service (QoS) enabled network. B2B Connect's solutions for businesses in multi-tenant office buildings include scalable and burstable Internet access with state-of-the-art security, 24/7 access to onsite IT support and a rich assortment of the latest eBusiness tools such as web development, web hosting and voice communications. B2B Connect is distinguished for enterprise quality services scaled to enable small businesses to grow cost-effectively. The company is equipped to provide bandwidth for all needs and budgets, from 500 Kbps service for basic email and Internet browsing to increased bandwidth for large file transfer and video streaming. For more information on B2B Connect, please see our website at http://www.b2bconnect.com.

The above information includes forward-looking statements regarding services and network deployment. These statements are not guarantees of future performance. Known and unknown risks, uncertainties, and other factors, including without limitation, satisfying closing conditions, final FCC approval, capital requirements and other financial risks, customer demand, technological risks, management of growth, competition and government regulation may cause actual results to differ materially from the future results implied or expressed in the forward looking statements. Additional information about the most significant of such factors is set forth in ART's most recent annual report on Form 10-K. The Company does not undertake to update or revise its forward-looking statements publicly even if experience or future changes make clear that any projected results expressed or implied herein will not be realized.