<SEC-DOCUMENT>0001518846-16-000004.txt : 20160205
<SEC-HEADER>0001518846-16-000004.hdr.sgml : 20160205
<ACCEPTANCE-DATETIME>20160205194743
ACCESSION NUMBER:		0001518846-16-000004
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20160202
FILED AS OF DATE:		20160205
DATE AS OF CHANGE:		20160205

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CALIX, INC
		CENTRAL INDEX KEY:			0001406666
		STANDARD INDUSTRIAL CLASSIFICATION:	COMMUNICATION SERVICES, NEC [4899]
		IRS NUMBER:				680438710
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1035 N MCDOWELL BLVD
		CITY:			PETALUMA
		STATE:			CA
		ZIP:			95954
		BUSINESS PHONE:		707-766-3000

	MAIL ADDRESS:	
		STREET 1:		1035 N MCDOWELL BLVD
		CITY:			PETALUMA
		STATE:			CA
		ZIP:			95954

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CALIX NETWORKS INC
		DATE OF NAME CHANGE:	20070713

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Lockhart Andy Glen
		CENTRAL INDEX KEY:			0001518846

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34674
		FILM NUMBER:		161393694

	MAIL ADDRESS:	
		STREET 1:		113 CASTELNAU
		CITY:			LONDON
		STATE:			X0
		ZIP:			SW139EL
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_145471965115752.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2016-02-02</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001406666</issuerCik>
        <issuerName>CALIX, INC</issuerName>
        <issuerTradingSymbol>(CALX)</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001518846</rptOwnerCik>
            <rptOwnerName>Lockhart Andy Glen</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CALIX, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>1035 N. MCDOWELL BLVD.</rptOwnerStreet2>
            <rptOwnerCity>PETALUMA</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94954</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SVP, International Sales</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2016-02-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2499</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>30067</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Performance stock units (&quot;PSUs&quot;), as based upon performance goal achievement certified by the Compensation Committee of the Board of Directors on February 2, 2016.  Settlement of the PSU share release to the Reporting Person is expected to occur on February 10, 2016.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Sabrina Mekhalfa as Attorney-in-Fact for Andy Lockhart</signatureName>
        <signatureDate>2016-02-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
