NaaS Market Opportunity and Strategic Imperatives

3Q23 Mass Markets Revenue Fiber Contribution Ramping Fiber Revenue Contribution to Total Broadband Revenue ($ in millions) 3Q23 Q/Q% Change % Total Fiber Broadband $162 3.2% 21.7% 22% 20% 19% Other Broadband (1) $340 (4.2%) 45.5% 18% 18% Voice and Other $245 (2.8%) 32.8% Total Mass Markets $747 (2.2%) 100% 32% 31% 29% 28% 3Q21 4Q21 1Q22 2Q22 3Q22 4Q22 1Q23 2Q23 3Q23 Includes the 20-State ILEC Business Divestiture (1) Other Broadband revenue primarily includes revenue from lower speed copper-based broadband services marketed under the CenturyLink brand. 22 Issued: October 31, 2023 Quantum FIBER

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