Advanced Radio Telecom Implements Electronic Bill Presentment Product from Novazen Inc.; ART Offers Customers a Paperless Bill and On-line Account Management Capabilities.

BELLEVUE, Wash.--(BUSINESS WIRE)--Aug. 31, 1999--

Advanced Radio Telecom Corp. (Nasdaq:ARTT) today announced that its customers now have the ability to review and manage their bills via the Internet.

ART recently deployed the Electronic Bill Presentment (EBP) module from Novazen Inc. as part of ART's overall customer care strategy.

"It's a win-win for the company and the customer," said Henry C. (Harry) Hirsch, ART chairman and CEO. "The customer has real time, on-line information and the ability to format and analyze his data, while the company benefits from the efficiency of interfacing with its customers electronically."

ART's new EBP application is available to ART customers 24 hours a day, 7 days a week, via an Internet browser. From their desktops, ART customers can:

-- Receive notification via e-mail that their bill is ready for

review;

-- Receive their summary and detail bill data via Internet browser

or via e-mail;

-- Print and/or request bill copies;

-- Request line item credits;

-- View all past bills;

-- Download bill data to a spreadsheet or database application;

-- Contact ART customer service representatives directly;

-- Receive e-mail notification of past due amounts;

-- Select varying bill formats;

-- Manage application users;

-- Track session activity, payment history, and credit history.

"Novazen is pleased to welcome Advanced Radio Telecom to its rapidly growing family of clients," said Vince Jordan, Novazen president and CEO. "We believe that EBP will provide ART's customers with a robust, user-friendly Internet-based application through which they can access their monthly bills. For Novazen, this deployment marks its entry into a non-traditional telephony environment, and demonstrates the inherent flexibility of our applications."

About ART

Advanced Radio Telecom Corp. (Nasdaq:ARTT), headquartered in Bellevue, Wash., is a provider of broadband wireless access to businesses at speeds up to 100Mbps. ART currently owns and operates metropolitan area networks in San Jose, Calif., Seattle, Portland, Ore., and Phoenix with plans to expand to 40 of the top 50 U.S. markets in the next few years. ART has a nationwide footprint of 38GHz spectrum licenses in the United States, and owns 26GHz and/or 38GHz spectrum licenses in the United Kingdom and several Scandinavian countries. For more information, please visit ART's Web site at http://www.art-net.net.

About Novazen, Inc.

Founded in 1997 and based in Longmont, Colo., Novazen, Inc., has developed an Internet-based customer care product suite that is designed to redefine and improve the interaction between businesses and their customers. Novazen has identified the communications, financial and utility industries as initial target markets. The company's products (Novazen Internet Customer Care and Novazen Electronic Bill Presentment & Payment) allow telecommunications companies, financial institutions, utilities, and other industries to leverage the Internet to increase customer satisfaction and lower customer care costs. For more information about Novazen, visit the company Web site at http://www.novazen.com or call 303/583-3100.

The above information includes forward-looking statements regarding network deployment. These statements are not guarantees of future performance. Known and unknown risks, uncertainties, and other factors, including without limitation, failure to consummate the financing transaction, capital requirements and other financial risks, customer demand, technological risks, the ability to meet financing conditions, management of growth, ability to achieve Year 2000 compliance, 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.