AT Atlantic Power Corporation

Alltel Group President Kevin Beebe will speak at 7:45 a.m. CDT June 2 at the Lehman Brothers Worldwide Wireless and Wireline Conference in New York. Instructions to access the Webcast of the presentation can be found at www.alltel.com/investors. The public can access the presentation via the Investor Relations portion of the Web site on the day of the conference. It also will be archived on the Web site for 90 days. Alltel is a customer-focused communications company with more than 13 million customers and $8 billion in annual revenues. Alltel provides wireless, local telephone, long-distance and broadband services to residential and business customers in 27 states. Alltel, NYSE: AT www.alltel.com