AT&T Results Presentation Deck

5G and Fiber 6 Postpaid Phone Subscribers millions 68.3 $54.81 2Q22 70.3 6.6 $55.63 Postpaid phone subscribers Postpaid phone ARPU $61.65 2Q23 AT&T Fiber Subscribers millions 7.7 $66.70 2Q22 Fiber subscribers AT&T Fiber ARPU 2Q23 Mobility Service Revenues $ in billions $15.0 +4.6%* 2Q22 * YOY change $1.2 +28%* AT&T Fiber Revenues $ in billions $1.5 2Q22 $15.7 * YOY change +4.9%* 2Q23 +28%* 2Q23 © 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 12 Mobility EBITDA+¹ $ in billions $8.1 53.8% 2Q22 $8.7 $0.9 55.5% EBITDA EBITDA Service Margin †1 29.3% 2Q23 Consumer Wireline EBITDA+¹ $ in billions $1.0 31.5% 2Q22 EBITDA EBITDA Margin 2Q23 †1 AT&T

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