FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Evans Andrew W   2. Issuer Name and Ticker or Trading Symbol SOUTHERN CO [SO] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Pres & CEO, Southern Co. Gas (Last) (First) (Middle) 30 IVAN ALLEN JR. BLVD., NW 3. Date of Earliest Transaction (Month/Day/Year) 12/31/2017 (Street) ATLANTA, GA 30308 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Southern Company Common Stock 12/31/2017   M   37,980 A $ 0 (1) 58,457 D   Southern Company Common Stock (2) 12/31/2017   F   19,504 D $ 48.09 38,953 D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Southern Co Restricted Stock Units (3)

$ 0 (1)

12/31/2017

M

37,980

12/31/2017

12/31/2017

Southern Company Common Stock

37,980

$ 0 (1)

46,055

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Evans Andrew W 30 IVAN ALLEN JR. BLVD., NW ATLANTA, GA 30308			Pres & CEO, Southern Co. Gas

Signatures

/s/ Laura O. Hewett, Attorney-in-Fact for Andrew W. Evans		01/03/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Each restricted stock unit (RSU) represents the right to receive, at settlement, one share of common stock.
(2)	Shares withheld to satisfy required state and federal tax withholding requirements.
(3)	As reported in a Form 4 filed on July 6, 2016, in accordance with the Agreement and Plan of Merger dated August 23, 2015 by and among AGL Resources Inc., The Southern Company and AMS Corp., outstanding performance share units of AGL Resources Inc. were assumed by Southern Company and converted into time vesting RSUs of Southern Company. Vesting of the RSUs is as follows: 28,704 RSUs vest December 31, 2016; 37,980 RSUs vest December 31, 2017; and 46,055 RSUs vest December 31, 2018.

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