Financial Data
AT&T Inc.
Supplemental Operating Results for the Three Months Ended
Dollars in millions
Unaudited
AT&T Mobility	3/31/2013			6/30/2013			9/30/2013			12/31/2013			3/31/2014			6/30/2014			9/30/2014			12/31/2014			3/31/2015			6/30/2015
Operating Revenues
Service	$	15,063		$	15,369		$	15,460		$	15,660		$	15,387		$	15,148		$	15,423		$	15,074		$	14,812		$	15,115
Equipment		1,628			1,922			2,020			2,777			2,479			2,782			2,914			4,785			3,374			3,189
Total  Operating Revenues		16,691			17,291			17,480			18,437			17,866			17,930			18,337			19,859			18,186			18,304
Operating Expenses
Operations and Support Expenses		10,181			10,769			10,981			12,577			10,865			11,473			11,683			14,327			11,472			10,973
Depreciation and amortization		1,756			1,781			1,828			1,884			1,903			1,973			1,909			1,959			2,005			2,031
Total Operating Expenses		11,937			12,550			12,809			14,461			12,768			13,446			13,592			16,286			13,477			13,004
Operating Income	$	4,754		$	4,741		$	4,671		$	3,976		$	5,098		$	4,484		$	4,745		$	3,573		$	4,709		$	5,300
Operating Income Margin		28.5	%		27.4	%		26.7	%		21.6	%		28.5	%		25.0	%		25.9	%		18.0	%		25.9	%		29.0	%