AT&T Results Presentation Deck

2Q23 Consumer and Business Wireline Results Revenues EBITDA †1 EBITDA Margin †1 $ amounts in billions Consumer Wireline $3.2 $3.3 $0.9 O 29.3% 2Q22 $5.6 Business Wireline $1.8 $1.0 32.2% 2Q22 31.5% 2Q23 $5.3 $1.7 32.8% 2Q23 Revenue and EBITDA+¹ growth driven by Fiber adoption, with Fiber revenues up 28% Broadband revenues grew 7.0%, with Fiber subscriber growth and mix shift to Fiber Fiber ARPU of $66.70, up 8.2%, with intake ARPU about $70 AT&T Fiber net additions of 251K, even with significantly lower move activity Closed Gigapower transaction and announced initial 8 new areas ● ● Business Wireline results impacted by ongoing transition toward core connectivity Portfolio rationalization continuing to impact year-over-year comparisons ● ● ● 2Q23 EBITDA+¹ comparability impacted by ~$75M in favorable items this quarter Business Solutions 6 wireless service revenues grew 9.1%; FirstNet added ~350K 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. 9 t See notes slide 12 AT&T

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