<SEC-DOCUMENT>0001051470-22-000065.txt : 20220223
<SEC-HEADER>0001051470-22-000065.hdr.sgml : 20220223
<ACCEPTANCE-DATETIME>20220223170659
ACCESSION NUMBER:		0001051470-22-000065
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20220219
FILED AS OF DATE:		20220223
DATE AS OF CHANGE:		20220223

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Brown Jay A.
		CENTRAL INDEX KEY:			0001434756

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-16441
		FILM NUMBER:		22664888

	MAIL ADDRESS:	
		STREET 1:		8020 KATY FREEWAY
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77024

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CROWN CASTLE INTERNATIONAL CORP
		CENTRAL INDEX KEY:			0001051470
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				760470458
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		8020 KATY FREEWAY
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77024
		BUSINESS PHONE:		7135703000

	MAIL ADDRESS:	
		STREET 1:		8020 KATY FREEWAY
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77024
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>FORM 4
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            <rptOwnerZipCode>77024</rptOwnerZipCode>
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            <isOfficer>1</isOfficer>
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            <officerTitle>President and CEO</officerTitle>
            <otherText></otherText>
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    <footnotes>
        <footnote id="F1">Represents shares withheld by the issuer to satisfy the Reporting Person's tax withholding obligation in connection with the vesting of certain Restricted Stock Units (&quot;RSUs&quot;) previously granted to the Reporting Person. Such withholding is exempt from Section 16(b) pursuant to Rule 16b-3(e).</footnote>
        <footnote id="F2">Represents shares previously acquired in transactions exempt under Rule 16b-3(c).</footnote>
        <footnote id="F3">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.</footnote>
        <footnote id="F4">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.</footnote>
        <footnote id="F5">32,699 Relative TSR Performance RSUs vested on February 19, 2022, based upon the Company's annualized total stockholder return performance ranking relative to the constituent companies of the Standard &amp; Poor's 500 Index for the three-year period ended December 31, 2021.</footnote>
        <footnote id="F6">73,564 Absolute TSR Performance RSUs vested on February 19, 2022, based upon the Company's annualized total stockholder return for the three-year period ended December 31, 2021.</footnote>
        <footnote id="F7">These Time RSUs were previously granted on February 21, 2019. 33 1/3% of the original grant amount of these Time RSUs vest on February 19 of each of 2020, 2021 and 2022.</footnote>
        <footnote id="F8">These Time RSUs were previously granted on February 20, 2020. 33 1/3% of the original grant amount of these Time RSUs vest on February 19 of each of 2021, 2022 and 2023.</footnote>
        <footnote id="F9">These Time RSUs were previously granted on February 18, 2021. 33 1/3% of the original grant amount of these Time RSUs vest on February 19 of each of 2022, 2023 and 2024.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jay A. Brown</signatureName>
        <signatureDate>2022-02-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
