AT&T fell by 3.15% to trade at $30.86 by 09:36 (13:36 GMT) on Friday on the NYSE exchange.
The volume of AT&T shares traded since the start of the session was 4.03M. AT&T has traded in a range of $30.85 to $31.16 on the day.
The stock has traded at $32.4500 at its highest and $30.8500 at its lowest during the past seven days.
