    <SEC-DOCUMENT>0000092122-21-000012-index.html : 20210219
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    ACCESSION NUMBER:		0000092122-21-000012
    CONFORMED SUBMISSION TYPE:	S-3ASR
    PUBLIC DOCUMENT COUNT:		9
    FILED AS OF DATE:		20210219
    DATE AS OF CHANGE:		20210219
    EFFECTIVENESS DATE:		20210219

    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:		S-3ASR
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-253291
    		FILM NUMBER:		21654190

    	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
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    <DOCUMENT>
    <TYPE>S-3ASR
    <SEQUENCE>1
    <FILENAME>sosips-32x21.htm
    <DESCRIPTION>S-3ASR
    <TEXT>
    Document 1 - file: sosips-32x21.htm

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    <DOCUMENT>
    <TYPE>EX-5.1
    <SEQUENCE>2
    <FILENAME>ex5-1sosipsx32021.htm
    <DESCRIPTION>EX-5.1
    <TEXT>
    Document 2 - file: ex5-1sosipsx32021.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-23.2
    <SEQUENCE>3
    <FILENAME>x23-2sosipsx32021dtconsent.htm
    <DESCRIPTION>EX-23.2
    <TEXT>
    Document 3 - file: x23-2sosipsx32021dtconsent.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-24.1
    <SEQUENCE>4
    <FILENAME>x24-1sippoa2021.htm
    <DESCRIPTION>EX-24.1
    <TEXT>
    Document 4 - file: x24-1sippoa2021.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>currentsosipprospectu_imag.jpg
    <TEXT>
    Document 5 - file: currentsosipprospectu_imag.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>directorbracketfors-3small1.jpg
    <TEXT>
    Document 6 - file: directorbracketfors-3small1.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>troutmanbluebar1a.jpg
    <TEXT>
    Document 7 - file: troutmanbluebar1a.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>troutpepperbanner1a.jpg
    <TEXT>
    Document 8 - file: troutpepperbanner1a.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>troutpepperlogo1a.jpg
    <TEXT>
    Document 9 - file: troutpepperlogo1a.jpg

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