UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM U-9C-3 QUARTERLY REPORT PURSUANT TO RULE 58 As of March 31, 2004 THE SOUTHERN COMPANY 270 Peachtree Street, N.W. Atlanta, GA 30303 2 The Southern Company Form U-9C-3 for the quarter ended March 31, 2004 has been filed confidentially pursuant to Rule 104.