Exhibit 12

QWEST CORPORATION

CALCULATION OF RATIO OF EARNINGS TO FIXED CHARGES

(UNAUDITED)

	Three Months Ended March 31, 2007			Years Ended December 31,
				2006			2005			2004			2003			2002
Income from continuing operations before income taxes, discontinued operations and cumulative effect of changes in accounting principles	$	625		$	1,851		$	1,530		$	1,742		$	1,758		$	2,435
Add: estimated fixed charges		165			669			668			647			643			634
Add: estimated amortization of capitalized interest		2			10			12			12			13			14
Less: interest capitalized		(2	)		(8	)		(7	)		(9	)		(13	)		(24	)
Total earnings available for fixed charges	$	790		$	2,522		$	2,203		$	2,392		$	2,401		$	3,059
Estimate of interest factor on rentals	$	10		$	45		$	54		$	54		$	57		$	69
Interest expense, including amortization of premiums, discounts and debt issuance costs (1)		153			616			607			584			573			541
Interest capitalized		2			8			7			9			13			24
Total fixed charges	$	165		$	669		$	668		$	647		$	643		$	634
Ratio of earnings to fixed charges		4.8			3.8			3.3			3.7			3.7			4.8

(1) Interest expense includes only interest related to borrowings.