Lumen Investor Presentation Deck

3Q23 Mass Markets Broadband Metrics Fiber Enabled Locations Continue to Accelerate Q/Q Fiber (¹) Enabled Locations Subscribers Other (¹) Enabled Locations Subscribers 3Q23 18 Issued: October 31, 2023 3.5M 896K 3Q23 18.2M 1.9M Y/Y Change (²) 487K 83K Y/Y Change (2) (586K) (354K) Q/Q Change 141K 19K Q/Q Change (172K) (92K) (1) For more information on how we calculate enabled locations and subscribers, see our accompanying earnings release. (2) Prior year amounts have been adjusted to remove the impacts of the 20-state ILEC business divestiture completed October 3, 2022, which included (i) fiber broadband subscribers of 76 thousand, (ii) other broadband subscribers of 1,073 thousand, (iii) fiber broadband enabled units of 0.3 million and (iv) other broadband enabled units of 7.2 million. The Company believes that this information will allow analysts and investors to understand the operating metrics associated with the divestiture of the 20-state ILEC business to understand the impact they had in relation to historical performance which will not recur. 141K Fiber Enabled Locations Adds Q/Q > +60 average NPS score on Quantum Fiber ~$61 Fiber Broadband ARPU Quantum FIBER

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