<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:ns2="http://www.sec.gov/edgar/common">
    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001197598</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001053507</issuerCik>
            <issuerName>AMERICAN TOWER CORPORATION</issuerName>
            <secFileNumber>001-14195</secFileNumber>
            <issuerAddress>
                <ns2:street1>116 Huntington Avenue</ns2:street1>
                <ns2:city>Boston</ns2:city>
                <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                <ns2:zipCode>02116</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(617) 375-7500</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>SAMME THOMPSON</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Director</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>8th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>2527</noOfUnitsSold>
            <aggregateMarketValue>502620.30</aggregateMarketValue>
            <noOfUnitsOutstanding>466352208</noOfUnitsOutstanding>
            <approxSaleDate>03/01/2024</approxSaleDate>
            <securitiesExchangeName>NYSE</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>03/01/2024</acquiredDate>
            <natureOfAcquisitionTransaction>Stock Option Exercise</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>2527</amountOfSecuritiesAcquired>
            <paymentDate>03/01/2024</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>SAMME THOMPSON</name>
                <address>
                    <ns2:street1>116 Huntington Avenue</ns2:street1>
                    <ns2:city>Boston</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>02116</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>02/26/2024</saleDate>
            <amountOfSecuritiesSold>2527</amountOfSecuritiesSold>
            <grossProceeds>480690.49</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>03/01/2024</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>10/27/2023</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Samme L Thompson</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
[{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 4001}]
144
0001197598
XXXXXXXX
LIVE
0001053507
AMERICAN TOWER CORPORATION
001-14195
116 Huntington Avenue
Boston
MA
02116
(617) 375-7500
SAMME THOMPSON
Director
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
2527
502620.30
466352208
03/01/2024
NYSE
Common
03/01/2024
Stock Option Exercise
Issuer
N
2527
03/01/2024
Cash
N
SAMME THOMPSON
116 Huntington Avenue
Boston
MA
02116
Common
02/26/2024
2527
480690.49
03/01/2024
10/27/2023
/s/ Samme L Thompson