AT&T Results Presentation Deck

5G and Fiber 5 Postpaid Phone Subscribers millions 69.0 $55.67 3Q22 70.8 6.9 $55.99 Postpaid phone subscribers Postpaid phone ARPU $62.62 3Q23 AT&T Fiber Subscribers millions 8.0 $68.21 3Q23 3Q22 Fiber subscribers AT&T Fiber ARPU Mobility Service Revenues $ in billions $15.3 3Q22 * YOY change $1.3 $15.9 3Q22 * YOY change +3.7%* AT&T Fiber Revenues $ in billions $1.6 3Q23 +27%* 3Q23 © 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. + See notes slide 10 Mobility EBITDAT¹ $ in billions $8.3 53.9% 3Q22 $0.9 $8.9 EBITDA EBITDA Service Margin †1 29.6% 55.9% Consumer Wireline EBITDA+¹ $ in billions 3Q22 3Q23 $1.0 31.0% 3Q23 EBITDA EBITDA Margin +1 AT&T

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