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      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001641965</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001708055</issuerCik>
        <issuerName>Ribbon Communications Inc.</issuerName>
        <secFileNumber>001-38267</secFileNumber>
        <issuerAddress>
          <com:street1>6500 CHASE OAKS BOULEVARD</com:street1>
          <com:city>PLANO</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>75023</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>877-412-8867</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Macken Patrick W</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Commonwealth Financial Network</name>
          <address>
            <com:street1>29 Sawyer Rd</com:street1>
            <com:city>Waltham</com:city>
            <com:stateOrCountry>MA</com:stateOrCountry>
            <com:zipCode>02453</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>42094</noOfUnitsSold>
        <aggregateMarketValue>134279.86</aggregateMarketValue>
        <noOfUnitsOutstanding>171730760</noOfUnitsOutstanding>
        <approxSaleDate>02/27/2024</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>06/19/2020</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Ribbon Communications</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>27826</amountOfSecuritiesAcquired>
        <paymentDate>06/19/2020</paymentDate>
        <natureOfPayment>compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>06/19/2020</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Ribbon Communications</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>14268</amountOfSecuritiesAcquired>
        <paymentDate>06/19/2020</paymentDate>
        <natureOfPayment>compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>02/27/2024</noticeDate>
        <signature>/s/ Audrey Skillern as a duly authorized representative of National Financial Services LLC, as attorney-in-fact for Patrick W Macken</signature>
      </noticeSignature>
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text: 144
  0001641965
  XXXXXXXX
  LIVE
  0001708055
  Ribbon Communications Inc.
  001-38267
  6500 CHASE OAKS BOULEVARD
  PLANO
  TX
  75023
  877-412-8867
  Macken Patrick W
  Officer
  Common
  Commonwealth Financial Network
  29 Sawyer Rd
  Waltham
  MA
  02453
  42094
  134279.86
  171730760
  02/27/2024
  NASDAQ
  Common
  06/19/2020
  Stock Award
  Ribbon Communications
  N
  27826
  06/19/2020
  compensation
  Common
  06/19/2020
  Stock Award
  Ribbon Communications
  N
  14268
  06/19/2020
  compensation
  Y
  02/27/2024
  /s/ Audrey Skillern as a duly authorized representative of National Financial Services LLC, as attorney-in-fact for Patrick W Macken