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 * Simon Kenneth Jay   2. Issuer Name and Ticker or Trading Symbol CROWN CASTLE INTERNATIONAL CORP [CCI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) SVP and General Counsel (Last) (First) (Middle) 1220 AUGUSTA DRIVE SUITE 600 3. Date of Earliest Transaction (Month/Day/Year) 02/19/2019 (Street) HOUSTON, TX 77057 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 Common Stock $0.01 Par Value 02/19/2019   M   19,618 A $ 0 38,328 D   Common Stock $0.01 Par Value 02/19/2019   M   2,713 A $ 0 41,041 D   Common Stock $0.01 Par Value 02/19/2019   M   2,900 A $ 0 43,941 D   Common Stock $0.01 Par Value 02/19/2019   M   2,512 A $ 0 46,453 D   Common Stock $0.01 Par Value 02/19/2019   F   9,686 (1) D $ 120.13 36,767 D   Common Stock $0.01 Par Value               227 (2) I By 401(k) Plan Common Stock $0.01 Par Value               113 (3) I By Spouse (by IRA) Common Stock $0.01 Par Value               55 (3) I By Daughter

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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
Performance RSUs	(4)	02/19/2019		M			19,618	(5)	(5)	Common Stock	19,618	$ 0	0	D
Time RSUs	(4)	02/19/2019		M			2,713	(6)	(6)	Common Stock	2,713	$ 0	0	D
Time RSUs	(4)	02/19/2019		M			2,900	(7)	(7)	Common Stock	2,900	$ 0	2,901	D
Time RSUs	(4)	02/19/2019		M			2,512	(8)	(8)	Common Stock	2,512	$ 0	5,026	D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Simon Kenneth Jay 1220 AUGUSTA DRIVE SUITE 600 HOUSTON, TX 77057			SVP and General Counsel

Signatures

/s/ Kenneth Jay Simon		02/21/2019
**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)	Represents shares withheld by the issurer to satisfy the Reporting Person's tax withholding obligation in connection with the vesting of certain Restricted Stock Units ("RSUs") previously granted to the Reporting Person. Such withholding is exempt from Section 16(b) pursuant to Rule 16b-3(e).
(2)	Represents shares previously acquired in transactions exempt under Rule 16b-3(c).
(3)	The reporting person disclaims beneficial ownership of these shares, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.
(4)	Each RSU is issued pursuant to the Company's 2013 Long-Term Incentive Plan and represents a contingent right to receive one share of common stock, and vesting (i.e., forfeiture restriction termination) generally is subject to (i) the reporting person remaining an employee or director of the Company or its affiliates and (ii) the other criteria described in the footnotes below.
(5)	19,618 Performance RSUs vested on February 19, 2019, based upon the Company's total stockholder return performance ranking relative to a peer group of companies approved by the Company's board of directors for the three year period ended February 18, 2019. The remainder of the original Performance RSUs granted in February 2016 did not vest on February 19, 2019 and were forfeited.
(6)	These Time RSUs were previously granted on February 18, 2016. 33 1/3% of the original grant amount of these Time RSUs vest on February 19 of each of 2017, 2018 and 2019.
(7)	These Time RSUs were previously granted on February 16, 2017. 33 1/3% of the original grant amount of these Time RSUs vest on February 19 of each of 2018, 2019 and 2020.
(8)	These Time RSUs were previously granted on February 21, 2018. 33 1/3% of the original grant amount of these Time RSUs vest on February 19 of each of 2019, 2020 and 2021.

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