Exhibit 12

QWEST CORPORATION

CALCULATION OF RATIO OF EARNINGS TO FIXED CHARGES

(UNAUDITED)



|                                                                                                                                         |  |                                   |       |   |                          |      |       |   |      |   |       |   |  |   |       |  
|---------------------------------------------------------------------------------------------------------------------------------------- |  | --------------------------------- | ----- | - | ------------------------ | ---- | ----- | - | ---- | - | ----- | - |  | - | ----- | -
|                                                                                                                                         |  | Nine MonthsEndedSeptember 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 |  | $                                 | 1,708 |   |                          | $    | 2,440 |   |      | $ | 1,882 |   |  | $ | 1,628 |  
|Add: estimated fixed charges                                                                                                             |  |                                   | 506   |   |                          |      | 682   |   |      |   | 700   |   |  |   | 700   |  
|Add: estimated amortization of capitalized interest                                                                                      |  |                                   | 9     |   |                          |      | 10    |   |      |   | 10    |   |  |   | 12    |  
|Less: interest capitalized                                                                                                               |  |                                   | (11   | ) |                          |      | (12   | ) |      |   | (12   | ) |  |   | (10   | )
|                                                                                                                                         |  |                                   |       |   |                          |      |       |   |      |   |       |   |  |   |       |  
|Total earnings available for fixed charges                                                                                               |  | $                                 | 2,212 |   |                          | $    | 3,120 |   |      | $ | 2,580 |   |  | $ | 2,330 |  
|                                                                                                                                         |  |                                   |       |   |                          |      |       |   |      |   |       |   |  |   |       |  
|Estimate of interest factor on rentals                                                                                                   |  | $                                 | 51    |   |                          | $    | 62    |   |      | $ | 72    |   |  | $ | 82    |  
|Interest expense, including amortization of premiums, discounts and debt issuance costs(1)                                               |  |                                   | 444   |   |                          |      | 608   |   |      |   | 616   |   |  |   | 608   |  
|Interest capitalized                                                                                                                     |  |                                   | 11    |   |                          |      | 12    |   |      |   | 12    |   |  |   | 10    |  
|                                                                                                                                         |  |                                   |       |   |                          |      |       |   |      |   |       |   |  |   |       |  
|Total fixed charges                                                                                                                      |  | $                                 | 506   |   |                          | $    | 682   |   |      | $ | 700   |   |  | $ | 700   |  
|                                                                                                                                         |  |                                   |       |   |                          |      |       |   |      |   |       |   |  |   |       |  
|Ratio of earnings to fixed charges                                                                                                       |  |                                   | 4.4   |   |                          |      | 4.6   |   |      |   | 3.7   |   |  |   | 3.3   |  



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