AT&T Results Presentation Deck

1Q23 Consumer and Business Wireline Results Revenues EBITDA †1 $ amounts in billions Consumer Wireline $3.2 $3.2 $0.9 O 29.3% 1Q22 $1.9 $1.0 34.4% 1Q22 29.5% 1Q23 Business Wireline $5.6 $5.3 EBITDA Margin †1 $1.7 32.0% 1Q23 Revenue and EBITDA+¹ growth driven by Fiber adoption, with Fiber revenues up ~31% Broadband revenues grew 7.3% with fiber subscriber growth and mix shift to Fiber Fiber ARPU of $65.92, up 9.1%, with intake ARPU about $70 Strong AT&T Fiber growth with 272K net additions, even with significantly lower move activity ● ● ● Business wireline results impacted by ongoing transition toward core connectivity Portfolio rationalization impacted year-over-year comparisons 1Q23 EBITDA*¹ comparability impacted by ~$50M in favorable items in the prior year Business Solutions t5 wireless service revenues grew nearly 7%; FirstNet added ~300K 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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