AT&T fell by 3.09% to trade at $29.21 by 11:03 (16:03 GMT) on Monday on the NYSE exchange.
The volume of AT&T shares traded since the start of the session was 12.85M. AT&T has traded in a range of $29.17 to $30.12 on the day.
The stock has traded at $32.0100 at its highest and $29.1800 at its lowest during the past seven days.
