Advanced Radio Telecom Announces New Customers; Sales Activity Gathers Momentum for Broadband Wireless Provider.

Business Editors

BELLEVUE, Wash.--(BUSINESS WIRE)--Dec. 8, 2000

Advanced Radio Telecom Corp. (ART) (Nasdaq:ARTT) a leading broadband wireless Internet Protocol (IP) services provider, today announced that the following companies have recently signed service orders with ART:

McKinsey & Company (Houston) USCB, Inc. (Los Angeles) Clearview Networks (Los Angeles) GASP Partners (Los Angeles) Impetus (San Jose) MKD (San Jose) EChips (San Jose) Chindadotcom Corp. (San Jose) Clark Nuber PS (Seattle) Meals.com (Seattle) Alliance Residential Management (Houston) Advent Enterprises (Los Angeles) Ariana Telecommunication (Los Angeles) Pangea Design (Houston) Tavanza, Inc. (San Jose) Mission Valley Executive Plaza (San Diego) Mark III Systems (Houston) Koreantel (Los Angeles) Geonet Services (Houston) OSI Management Inc. (Washington, D.C.)

These new customers are early adopters of ART's new high-speed broadband service, which debuted on Sept. 18, 2000. This product offers connectivity from 3 to 10 Mbps directly to business users and is designed to further strengthen office building penetration in markets where ART currently operates.

In addition to orders for the new service, ART has recently received 30 orders from its wholesale channel partners for service in San Jose, Portland, San Diego, Phoenix and Seattle.

"We are beginning to see some real momentum on the sales front," said Wharton ("Zie") Rivers, Jr., ART's CEO. "Our value proposition is more than straightforward, it's unbeatable. We offer broadband wireless service that is as reliable as fiber at dramatically reduced provisioning intervals, and at prices that are extremely compelling. ART's value proposition is clearly striking a chord with the market.

"We are very encouraged by the early adoption of our service among the growing number of companies who see fixed broadband wireless as the wave of the future," Rivers added. "It is also very much in keeping with our strategic goal of aggressively driving revenue in on-net markets. Our direct product is the perfect complement to our core business of selling higher capacity bandwidth -- today up to OC-3, or 155 Mbps, connectivity -- to regional and national Internet Service Providers and carriers."

About ART

Advanced Radio Telecom Corp. (ART) provides broadband fixed wireless Internet Protocol (IP) services with Ethernet interface to Integrated Communication Service Providers (ICPs), Internet Service Providers (ISPs), Application Service Providers (ASPs) and interexchange carriers (IXCs). ART offers a point-to-consecutive-point network ring design with speeds up to 100 Mbps, as well as dedicated, protected and redundant OC-3 connectivity with speeds up to 155 Mbps. Using ART's highly scalable network architecture, ICPs, ISPs, ASPs and IXCs can extend Local Area Networks to Wide Area Networks at native LAN speeds for their own end-user customers. ART provides this last-mile connectivity without the delay and disruption that can occur with phone company hook-up or fiber optic installation. ART is a Cisco Powered Network Service(TM) provider headquartered in Bellevue, Wash.

ART currently owns and operates broadband wireless metropolitan area networks in Dallas/Ft. Worth, Houston, Los Angeles, Phoenix, Portland, San Diego, San Jose, Seattle and Washington, D.C. ART has a nationwide footprint of 39GHz spectrum licenses in the United States, and spectrum licenses in the United Kingdom and several Scandinavian countries. For more information, visit ART's website at www.ipsp.com.

The above information includes forward-looking statements regarding services. These statements are not guarantees of future performance. Known and unknown risks, uncertainties, and other factors, including without limitation, capital requirements, need for additional financing and other financial risks, changes to the strategy and business plan, customer demand, technological risks, management of growth, satisfying borrowing conditions, 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.