Document EXHIBIT 21.1 Subsidiaries of Charter Communications, Inc. Entity Jurisdiction and Type December 31, 2025 Entity Name Jurisdiction and Type BHN IP Enabled Services, LLC Delaware limited liability company Bresnan Broadband Holdings, LLC Delaware limited liability company Bresnan Broadband of Colorado, LLC Colorado limited liability company Bresnan Broadband of Montana, LLC Montana limited liability company Bresnan Broadband of Wyoming, LLC Wyoming limited liability company Bresnan Digital Services, LLC Delaware limited liability company Bright House Networks Information Services (Alabama), LLC Delaware limited liability company Bright House Networks Information Services (California), LLC Delaware limited liability company Bright House Networks Information Services (Florida), LLC Delaware limited liability company Bright House Networks Information Services (Indiana), LLC Delaware limited liability company Bright House Networks Information Services (Michigan), LLC Delaware limited liability company CC Fiberlink, LLC Delaware limited liability company CC VI Fiberlink, LLC Delaware limited liability company CC VII Fiberlink, LLC Delaware limited liability company CCH Holding Company, LLC Delaware limited liability company CCH I Holdings, LLC Delaware limited liability company CCH II, LLC Delaware limited liability company CCHC, LLC Delaware limited liability company CCI Green, LLC Delaware limited liability company CCO EIP Financing, LLC Delaware limited liability company CCO Fiberlink, LLC Delaware limited liability company CCO Holdings Capital Corp. Delaware corporation CCO Holdings, LLC Delaware limited liability company CCO NR Holdings, LLC Delaware limited liability company Charter Communications ASC, LLC Delaware limited liability company Charter Communications Holding Company, LLC Delaware limited liability company Charter Communications Holdings, LLC Delaware limited liability company Charter Communications, Inc. Delaware corporation (Parent Company) Charter Communications, LLC Delaware limited liability company Charter Communications Operating Capital Corp. Delaware corporation Charter Communications Operating, LLC Delaware limited liability company Charter Communications SSC, LLC Delaware limited liability company Charter Communications VI HoldCo, LLC Delaware limited liability company Charter Communications VI, L.L.C. Delaware limited liability company Charter Distribution, LLC Delaware limited liability company Charter Fiberlink – Alabama, LLC Delaware limited liability company Entity Name Jurisdiction and Type Charter Fiberlink – Georgia, LLC Delaware limited liability company Charter Fiberlink – Illinois, LLC Delaware limited liability company Charter Fiberlink – Maryland II, LLC Delaware limited liability company Charter Fiberlink – Michigan, LLC Delaware limited liability company Charter Fiberlink – Missouri, LLC Delaware limited liability company Charter Fiberlink – Nebraska, LLC Delaware limited liability company Charter Fiberlink – Tennessee, LLC Delaware limited liability company Charter Fiberlink CA-CCO, LLC Delaware limited liability company Charter Fiberlink CC VIII, LLC Delaware limited liability company Charter Fiberlink CCO, LLC Delaware limited liability company Charter Fiberlink CT-CCO, LLC Delaware limited liability company Charter Fiberlink LA-CCO, LLC Delaware limited liability company Charter Fiberlink MA-CCO, LLC Delaware limited liability company Charter Fiberlink MS-CCVI, LLC Delaware limited liability company Charter Fiberlink NC-CCO, LLC Delaware limited liability company Charter Fiberlink NH-CCO, LLC Delaware limited liability company Charter Fiberlink NV-CCVII, LLC Delaware limited liability company Charter Fiberlink NY-CCO, LLC Delaware limited liability company Charter Fiberlink OR-CCVII, LLC Delaware limited liability company Charter Fiberlink SC-CCO, LLC Delaware limited liability company Charter Fiberlink TX-CCO, LLC Delaware limited liability company Charter Fiberlink VA-CCO, LLC Delaware limited liability company Charter Fiberlink VT-CCO, LLC Delaware limited liability company Charter Fiberlink WA-CCVII, LLC Delaware limited liability company Charter IP Enabled Services, LLC Delaware limited liability company Charter Leasing Holding Company, LLC Delaware limited liability company Charter Procurement Leasing, LLC Delaware limited liability company DukeNet Communications, LLC Delaware limited liability company Fusion Merger Sub 1, LLC Delaware limited liability company Fusion Merger Sub 2, Inc. Delaware corporation Hunter Acquisition Holdings, Inc. Delaware corporation Innovar Media LLC Delaware limited liability company Insight Blocker LLC Delaware limited liability company SCI Aviation, Inc. New York corporation Spectrum Advanced Services, LLC Delaware limited liability company Spectrum Captive Holdings, LLC Delaware limited liability company Spectrum CCI Foundation Delaware non-profit corporation Spectrum Communications Indemnity Inc. Connecticut captive insurance company Spectrum Fiberlink Florida, LLC Delaware limited liability company Entity Name Jurisdiction and Type Spectrum Gulf Coast, LLC Delaware limited liability company Spectrum Management Holding Company, LLC Delaware limited liability company Spectrum Mid-America, LLC Delaware limited liability company Spectrum Mobile Equipment, LLC Delaware limited liability company Spectrum Mobile, LLC Delaware limited liability company Spectrum New Jersey, LLC Delaware limited liability company Spectrum New York Metro, LLC Delaware limited liability company Spectrum NLP, LLC Delaware limited liability company Spectrum Northeast, LLC Delaware limited liability company Spectrum Oceanic, LLC Delaware limited liability company Spectrum Originals Development, LLC Delaware limited liability company Spectrum Originals, LLC Delaware limited liability company Spectrum Pacific West, LLC Delaware limited liability company Spectrum Reach, LLC Delaware limited liability company Spectrum RSN, LLC Delaware limited liability company Spectrum SN, LLC Delaware limited liability company Spectrum Southeast, LLC Delaware limited liability company Spectrum SportsNet, LLC Delaware limited liability company Spectrum Stamford, LLC Delaware limited liability company Spectrum Sunshine State, LLC Delaware limited liability company Spectrum TV Essentials, LLC Delaware limited liability company Spectrum Wireless Holdings, LLC Delaware limited liability company Time Warner Cable Business LLC Delaware limited liability company Time Warner Cable Enterprises LLC Delaware limited liability company Time Warner Cable Information Services (Alabama), LLC Delaware limited liability company Time Warner Cable Information Services (Arizona), LLC Delaware limited liability company Time Warner Cable Information Services (California), LLC Delaware limited liability company Time Warner Cable Information Services (Colorado), LLC Delaware limited liability company Time Warner Cable Information Services (Hawaii), LLC Delaware limited liability company Time Warner Cable Information Services (Idaho), LLC Delaware limited liability company Time Warner Cable Information Services (Illinois), LLC Delaware limited liability company Time Warner Cable Information Services (Indiana), LLC Delaware limited liability company Time Warner Cable Information Services (Kansas), LLC Delaware limited liability company Time Warner Cable Information Services (Kentucky), LLC Delaware limited liability company Time Warner Cable Information Services (Maine), LLC Delaware limited liability company Time Warner Cable Information Services (Massachusetts), LLC Delaware limited liability company Time Warner Cable Information Services (Michigan), LLC Delaware limited liability company Time Warner Cable Information Services (Missouri), LLC Delaware limited liability company Time Warner Cable Information Services (Nebraska), LLC Delaware limited liability company Entity Name Jurisdiction and Type Time Warner Cable Information Services (New Hampshire), LLC Delaware limited liability company Time Warner Cable Information Services (New Jersey), LLC Delaware limited liability company Time Warner Cable Information Services (New Mexico), LLC Delaware limited liability company Time Warner Cable Information Services (New York), LLC Delaware limited liability company Time Warner Cable Information Services (North Carolina), LLC Delaware limited liability company Time Warner Cable Information Services (Ohio), LLC Delaware limited liability company Time Warner Cable Information Services (Pennsylvania), LLC Delaware limited liability company Time Warner Cable Information Services (South Carolina), LLC Delaware limited liability company Time Warner Cable Information Services (Tennessee), LLC Delaware limited liability company Time Warner Cable Information Services (Texas), LLC Delaware limited liability company Time Warner Cable Information Services (Virginia), LLC Delaware limited liability company Time Warner Cable Information Services (Washington), LLC Delaware limited liability company Time Warner Cable Information Services (West Virginia), LLC Delaware limited liability company Time Warner Cable Information Services (Wisconsin), LLC Delaware limited liability company Time Warner Cable, LLC Delaware limited liability company TWC Administration LLC Delaware limited liability company TWC Communications, LLC Delaware limited liability company TWC IP Enabled Services, LLC Delaware limited liability company TWC SEE Holdco LLC Delaware limited liability company TWCIS Holdco LLC Delaware limited liability company Visual Advertising Sales Technology, LLC Delaware limited liability company