AT&T Results Presentation Deck

5G and Fiber 5 Postpaid Phone Subscribers millions 67.5 $54.00 1Q22 70.0 6.3 $55.05 Postpaid phone subscribers Postpaid phone ARPU $60.41 1Q23 AT&T Fiber Subscribers millions 7.5 $65.92 1Q22 Fiber subscribers AT&T Fiber ARPU 1Q23 Mobility Service Revenues $ in billions $14.7 +4.8%* 1Q22 * YOY change $1.1 +25%* AT&T Fiber Revenues $ in billions $1.5 1Q22 $15.5 * YOY change +5.2%* 1Q23 +31%* 1Q23 © 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 EBITDA+¹ $ in billions $7.7 52.6% 1Q22 $8.4 $0.9 54.1% EBITDA EBITDA Service Margin †1 29.3% 1Q23 Consumer Wireline EBITDA+¹ $ in billions $1.0 29.5% 1Q22 EBITDA EBITDA Margin 1Q23 †1 AT&T

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