AT&T Wins Four U.S. Wholesale Carrier Excellence Awards

Leadership in Network Performance, Products, Services and Brand Quality Affirmed by Customer Ratings in Atlantic-Acm Report

San Diego, California, March 20, 2006

AT&T, Inc. (NYSE:T) today announced it has received four 2006 U.S. Wholesale Carrier Excellence Awards from Atlantic-ACM, a Boston-based telecommunications industry research consultancy. The awards, which are based on customer feedback, were presented today at the Competitive Telecommunications Association's (COMPTEL's) Spring 2006 Convention & Expo in San Diego.

AT&T is a global leader in the transport and termination of wholesale traffic. The company won awards in the following categories:

  • Weighted network performance

  • Weighted quality and value of voice products and services

  • Weighted quality and value of data products and services

  • Weighted brand quality

The awards are based on the results of the 2006 edition of Atlantic-ACM's Wholesale Carrier Report Card, which evaluates the performance of wholesale carriers in key delivery areas from ratings by their resale customers.

"These awards are an excellent testament to how we are focused on meeting the needs of our diverse customer base," said Sherry Charles, vice president, AT&T Wholesale Marketing, AT&T Enterprise Services, Inc. "Our customers are looking for a seamless way of doing business, and AT&T has the scope, vision and proven performance to create integrated wholesale solutions for any business need, from switched voice services to the latest IP technology."

The Atlantic-ACM Wholesale Carrier Report Card analyzes customer feedback in the traditional wholesale telecommunications market as well as in emerging technologies. This comprehensive research provides clients with a broad range of diagnostic, benchmarking and marketing tools.

"In the decade of conducting this annual report card, AT&T has consistently earned high ratings and awards in various categories and has used the information to improve in other areas," said Dr. Judy Reed Smith, CEO of Atlantic-ACM. "The new AT&T continues to set a high bar for the industry in meeting customer requirements through offering a portfolio of products and services that customers admire."

As a leading provider of wholesale services, AT&T provides complete end-to-end solutions for carriers, wireless operators, cable providers, systems integrators and Internet service providers. The company can help businesses grow by extending their footprint, strengthening their network infrastructure, making their internal business operations more efficient and complementing their existing offers with value-added application services.

AT&T wholesale services are a comprehensive portfolio of IP, data and voice services, including VPNs, managed security services and managed contact center services.

About ATLANTIC-ACM
Boston-based ATLANTIC-ACM is a leading provider of strategic research and consulting services serving the telecommunications and information industries. The company assists clients in evaluating telecommunications opportunities for successful investment, market entry and long-term planning. For more information, visit ATLANTIC-ACM's website at http://www.atlantic-acm.com.

About the New AT&T
AT&T Inc. is one of the world's largest telecommunications holding companies and is the largest in the United States. Operating globally under the AT&T brand, AT&T companies are recognized as the leading worldwide providers of IP-based communications services to business and as leading U.S. providers of high speed DSL Internet, local and long distance voice, and directory publishing and advertising services. AT&T Inc. holds a 60 percent ownership interest in Cingular Wireless, which is the No. 1 U.S. wireless services provider with more than 54 million wireless customers. Additional information about AT&T Inc. and AT&T products and services is available at www.TheNewATT.com.

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