AT Atlantic Power Corporation

Alltel (NYSE: AT) will hold a conference call at 7:30 a.m. CDT on May 3 to announce the company's first-quarter earnings results. Interested parties can access the call by dialing 877-493-2983 five minutes prior to the start time. A replay of the call will be available beginning at 10:30 a.m. CDT on May 3 and ending at midnight CDT on May 9. The replay can be accessed by calling 800-642-1687, passcode 7749167. The conference call will be streamed live over the company's Web site at www.alltel.com/investors. Financial, statistical and other information related to the call also will be posted on the investor relations section of the company's Web site. A replay of the Web cast will be available on the Web site beginning at 10:30 a.m. CDT on May 3. Alltel is owner and operator of the nation's largest wireless network and has more than 10 million wireless customers. Alltel, NYSE: AT www.alltel.com