EXHIBIT 12

AT&T Inc.
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES — PRO FORMA
For the Year Ended December 31, 2005
($ in millions)

																Adjustments						Combined
	Historical			Historical						Pro Forma			Historical			Consolidation						Pro Forma
	AT&T Inc.			ATTC *			Adjustments			AT&T/ATTC			BellSouth			of Cingular			Other			AT&T Inc.
Earnings:
Income from continuing operations before income taxes	$	5,718		$	2,489		$	(223	)	$	7,984		$	4,302		$	198		$	(3,489	)	$	8,995
Equity in net income of affiliates included above		(609	)		(22	)					(631	)		(165	)		333						(463	)
Fixed Charges		1,680			751			(85	)		2,346			1,241			1,853			(579	)		4,861
Distributed income of equity affiliates		158			—						158			—									158
Interest capitalized		(36	)		(20	)					(56	)		(8	)		(44	)		—			(108	)
Earnings, as adjusted	$	6,911		$	3,198		$	(308	)	$	9,801		$	5,370		$	2,340		$	(4,068	)	$	13,443
Fixed Charges:
Interest expense	$	1,456		$	621		$	(85	)	$	1,992		$	1,124		$	1,260		$	(579	)	$	3,797
Interest capitalized		36			20						56			8			44						108
Dividends on preferred securities		31			—						31			—			—						31
Portion of rental expense representative of interest factor		157			110						267			109			549						925
Fixed Charges	$	1,680		$	751		$	(85	)	$	2,346		$	1,241		$	1,853		$	(579	)	$	4,861
Ratio of Earnings to Fixed Charges		4.11			4.26						4.18			4.33			1.26						2.77

* ATTC results prior to the November 18, 2005 acquisition (January 1, 2005 through November 18, 2005)

AT&T Inc.
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES — PRO FORMA
For the Three Months Ended March 31, 2006
($ in millions)

							Adjustments						Combined
	Historical			Historical			Consolidation						Pro Forma
	AT&T Inc.			BellSouth			of Cingular			Other			AT&T Inc.
Earnings:
Income from continuing operations before income taxes	$	2,157		$	1,161		$	124		$	(1,136	)	$	2,306
Equity in net income of affiliates included above		(334	)		(139	)		354						(119	)
Fixed Charges		553			310			437			(94	)		1,206
Distributed income of equity affiliates		21			—									21
Interest capitalized		(14	)		(3	)		(8	)		—			(25	)
Earnings, as adjusted	$	2,383		$	1,329		$	907		$	(1,230	)	$	3,389
Fixed Charges:
Interest expense	$	464		$	279		$	297		$	(94	)	$	946
Interest capitalized		14			3			8						25
Dividends on preferred securities		1			—			—						1
Portion of rental expense representative of interest factor		74			28			132						234
Fixed Charges	$	553		$	310		$	437		$	(94	)	$	1,206
Ratio of Earnings to Fixed Charges		4.31			4.29			2.08						2.81