<SEC-DOCUMENT>0000092122-22-000028-index.html : 20220527 <SEC-HEADER>0000092122-22-000028.hdr.sgml : 20220527 <ACCEPTANCE-DATETIME>20220527100625 ACCESSION NUMBER: 0000092122-22-000028 CONFORMED SUBMISSION TYPE: SD PUBLIC DOCUMENT COUNT: 1 <RULE> <RULE-NAME>13p-1 <ITEM> <ITEM-NUMBER>1.01 <ITEM-PERIOD>20211231 </ITEM> </RULE> FILED AS OF DATE: 20220527 DATE AS OF CHANGE: 20220527 FILER: COMPANY DATA: COMPANY CONFORMED NAME: SOUTHERN CO CENTRAL INDEX KEY: 0000092122 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC SERVICES [4911] IRS NUMBER: 580690070 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SD SEC ACT: 1934 Act SEC FILE NUMBER: 001-03526 FILM NUMBER: 22973173 BUSINESS ADDRESS: STREET 1: 30 IVAN ALLEN JR. BLVD., N.W. CITY: ATLANTA STATE: GA ZIP: 30308 BUSINESS PHONE: 4045065000 MAIL ADDRESS: STREET 1: 30 IVAN ALLEN JR. BLVD., N.W. CITY: ATLANTA STATE: GA ZIP: 30308 </SEC-HEADER> <DOCUMENT> <TYPE>SD <SEQUENCE>1 <FILENAME>a2021formsd-5x22.htm <DESCRIPTION>SD <TEXT> Document 1 - file: a2021formsd-5x22.htm
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