AT&T Results Presentation Deck

3Q23 Consumer and Business Wireline Results Revenues EBITDA †1 EBITDA Margin †1 $ amounts in billions Consumer Wireline $3.2 $3.3 $0.9 O 29.6% 3Q22 $5.7 Business Wireline $2.0 $1.0 34.6% 3Q22 31.0% 3Q23 $5.2 $1.7 32.5% 3Q23 Revenue and EBITDA+¹ growth driven by Fiber adoption, with Fiber revenues up ~27% Broadband revenues grew 9.8%, driven by Fiber subscriber and ARPU growth from mix shift to Fiber Fiber ARPU of $68.21, up 8.9%, with intake ARPU $70+ AT&T Fiber net additions of 296K, reflecting resilient demand and product superiority Introduced AT&T Internet Air fixed wireless access service in 20 locations ● ● Business Wireline results impacted by ongoing transition toward core connectivity Portfolio rationalization continuing to impact year-over-year comparisons ● • Continued fiber expansion supports connectivity gain opportunities in small/medium businesses ● Business Solutions t5 wireless service revenues grew 7.0%; FirstNet added ~275K connections ● © 2023 AT&T Intellectual Property. AT&T and globe logo are registered trademarks and service marks of AT&T Intellectual Property and/or AT&T affiliated companies. 8 t See notes slide 10 AT&T

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