<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3/A</documentType>

    <periodOfReport>2017-10-05</periodOfReport>

    <dateOfOriginalSubmission>2017-10-05</dateOfOriginalSubmission>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001710583</issuerCik>
        <issuerName>Switch, Inc.</issuerName>
        <issuerTradingSymbol>SWCH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001718987</rptOwnerCik>
            <rptOwnerName>BORDEN MICHAEL DAVID</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4136 VILLA RAFAEL DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LAS VEGAS</rptOwnerCity>
            <rptOwnerState>NV</rptOwnerState>
            <rptOwnerZipCode>89141</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>CLASS B COMMON STOCK</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>707471</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>BY MICHAEL D. BORDEN'S SPOUSE</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>COMMON UNITS</value>
                <footnoteId id="F2"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F3"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>CLASS A COMMON STOCK</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>707471</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>BY MICHAEL D. BORDEN'S SPOUSE</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Acquired pursuant to a Subscription Agreement with the Issuer in connection with the recapitalization of Switch Ltd., the Issuer's corporate restructuring and the Issuer's initial public offering (the &quot;IPO&quot;). One share of the Issuer's Class B common stock was issued for each Common Unit held by the reporting person. Pursuant to the Amended and Restated Certificate of Incorporation of the Issuer, the shares of Class B common stock (i) confer only voting rights (one vote per share) and do not confer any incidents of economic ownership to the holders thereof; and (ii) are forfeited and cancelled, on a one-for-one basis, without consideration, upon the redemption of Common Units for shares of Class A common stock, or cash, at the Issuer's election. See Footnote 3.</footnote>
        <footnote id="F2">Represents common membership interests in Switch, Ltd. (&quot;Common Units&quot;), which are redeemable on a one-for-one basis for shares of Class A common stock, or, at the election of Issuer, cash equal to a volume weighted average market price of a share of Class A common stock. The Common Units were acquired pursuant to a reclassification (exempt under Section 16b-7) and reorganization of the Issuer in connection with the Issuer's IPO. One share of the Issuer's Class B common stock was issued for each Common Unit held by the reporting person. See Footnote 1.</footnote>
        <footnote id="F3">The Common Units are redeemable on a one-for-one basis for shares of Class A common stock, or, at the election of the Issuer, cash equal to a volume weighted average market price of a share of Class A common stock. The Common Units have no expiration date. Upon any redemption of Common Units, one share of Class B common stock is automatically forfeited and cancelled for each Common Unit so redeemed.</footnote>
        <footnote id="F4">This Form 3/A shall not be deemed an admission that Michael D. Borden is, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the beneficial owner of any securities held solely by Michael D. Borden's spouse.</footnote>
    </footnotes>

    <remarks>THIS FORM 3/A IS BEING FILED TO CORRECT AN ERROR IN THE NUMBER OF COMMON UNITS AND CLASS B COMMON STOCK REPORTED.</remarks>

    <ownerSignature>
        <signatureName>/S/ MICHAEL D. BORDEN</signatureName>
        <signatureDate>2017-10-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
