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NEWS Stamford , Connecticut - April 30 , 2021 - Charter Communications , Inc. ( along with its subsidiaries , the " Company " or " Charter " ) today reported financial and operating results for the three months ended March 31 , 2021 . Key highlights : • First quarter total residential and small and medium business ( " SMB " ) customer relationships increased by 302,000 . As of March 31 , 2021 , Charter served a total of 31.4 million residential and SMB customers , with 1.7 million net new customer relationships added over the last twelve months . 1 . ● ● Charter COMMUNICATIONS ● Charter Announces First Quarter 2021 Results ● First quarter total residential and SMB Internet customers increased by 355,000 . As of March 31 , 2021 , Charter served a total of 29.2 million residential and SMB Internet customers , with 2.0 million total Internet customers added over the last twelve months . • First quarter Adjusted EBITDA¹ of $ 4.9 billion grew by 12.5 % year - over - year . Net income attributable to Charter shareholders totaled $ 807 million in the first quarter . First quarter total residential and SMB mobile lines increased by 300,000 . As of March 31 , 2021 , Charter served a total of 2.7 million mobile lines , with 1.3 million mobile lines added over the last twelve months . First quarter revenue of $ 12.5 billion grew by 6.7 % year - over - year , driven by residential revenue growth of 5.8 % and mobile revenue growth of 90.7 % . • First quarter capital expenditures totaled $ 1.8 billion and included $ 112 million of mobile - related capital expenditures . First quarter free cash flow of $ 1.9 billion grew by 35.3 % year - over - year . During the first quarter , Charter purchased approximately 6.3 million shares of Charter Class A common stock and Charter Communications Holdings , LLC ( " Charter Holdings " ) common units for approximately $ 4.0 billion . " We continue to execute well in a market environment that has not yet returned to normal . We added 355,000 Internet customers in the first quarter , and 2 million over the last year , for year - over - year growth of 7.3 % , " said Tom Rutledge , Chairman and CEO of Charter . " Our value - driven operating strategy of providing multiple high - quality products at lower prices than sold individually continues to drive our growth . " Adjusted EBITDA and free cash flow are non - GAAP measures defined in the " Use of Adjusted EBITDA and Free Cash Flow Information " section and are reconciled to net income attributable to Charter shareholders and net cash flows from operating activities , respectively , in the addendum of this news release . 1