Qwest Corp. 6.75% NT 57 (CTDD) 10-Q 2008 Q2 Quarterly report

Exhibit 12

QWEST CORPORATION

CALCULATION OF RATIO OF EARNINGS TO FIXED CHARGES

(UNAUDITED)

	Six Months Ended June 30, 2008	Years Ended December 31,
		2007	2006	2005
	(Dollars in millions)
Income from continuing operations before income taxes, discontinued operations and cumulative effect of changes in accounting principles	$1,226	$2,440	$1,882	$1,628
Add: estimated fixed charges	340	682	700	700
Add: estimated amortization of capitalized interest	5	10	10	12
Less: interest capitalized	(7)	(12)	(12)	(10)
Total earnings available for fixed charges	$1,564	$3,120	$2,580	$2,330
Estimate of interest factor on rentals	$34	$62	$72	$82
Interest expense, including amortization of premiums, discounts and debt issuance costs(1)	299	608	616	608
Interest capitalized	7	12	12	10
Total fixed charges	$340	$682	$700	$700
Ratio of earnings to fixed charges	4.6	4.6	3.7	3.3

(1) Interest expense includes only interest related to long-term borrowings and capital lease obligations.