The San Francisco Giants' ballpark is changing its name to AT&T Park beginning in March. The name change announced Friday gives the stadium its third identity since the ballpark opened in 2000 and follows SBC Communications Inc.'s acquisition of AT&T Corp. in November. SBC changed its name to AT&T after the merger. The Giants stadium was originally called Pacific Bell Park and was later renamed SBC Park. "AT&T played a critical role in the development of our ballpark and helped to keep major league baseball in San Francisco," Larry Baer, the club's executive vice president and chief operating officer, said in a statement. "Our partnership enabled us to create what we believe has become the best ballpark in America."