Exhibit 12



QWEST CORPORATION

CALCULATION OF RATIO OF EARNINGS TO FIXED CHARGES

(Unaudited)



|                                                                                                                                       |  |                              |       |   |                          |      |       |   |      |   |       |      |  |   |       |   |  |   |       |   |  |   |       |  
|-------------------------------------------------------------------------------------------------------------------------------------- |  | ---------------------------- | ----- | - | ------------------------ | ---- | ----- | - | ---- | - | ----- | ---- |  | - | ----- | - |  | - | ----- | - |  | - | ----- | -
|                                                                                                                                       |  | Six MonthsEndedJune 30, 2006 |       |   | Years Ended December 31, |     
|                                                                                                                                       |  |                              | 2005  |   |                          | 2004 |       |   | 2003 |   |       | 2002 |  |   | 2001  |  
|                                                                                                                                       |  | (Dollars in millions)        |      
|Income from continuing operations before income taxes, discontinued operations and cumulative effect of change in accounting
principle |  | $                            | 868   |   |                          | $    | 1,530 |   |      | $ | 1,742 |      |  | $ | 1,758 |   |  | $ | 2,435 |   |  | $ | 2,833 |  
|Add: estimated fixed charges                                                                                                           |  |                              | 336   |   |                          |      | 668   |   |      |   | 647   |      |  |   | 643   |   |  |   | 634   |   |  |   | 588   |  
|Add: estimated amortization of capitalized interest                                                                                    |  |                              | 6     |   |                          |      | 12    |   |      |   | 12    |      |  |   | 13    |   |  |   | 14    |   |  |   | 14    |  
|Less: interest capitalized                                                                                                             |  |                              | (4    | ) |                          |      | (7    | ) |      |   | (9    | )    |  |   | (13   | ) |  |   | (24   | ) |  |   | (44   | )
|                                                                                                                                       |  |                              |       |   |                          |      |       |   |      |   |       |      |  |   |       |   |  |   |       |   |  |   |       |  
|Total earnings available for fixed charges                                                                                             |  |                              | 1,206 |   |                          |      | 2,203 |   |      |   | 2,392 |      |  |   | 2,401 |   |  |   | 3,059 |   |  |   | 3,391 |  
|                                                                                                                                       |  |                              |       |   |                          |      |       |   |      |   |       |      |  |   |       |   |  |   |       |   |  |   |       |  
|Estimate of interest factor on rentals                                                                                                 |  |                              | 23    |   |                          |      | 54    |   |      |   | 54    |      |  |   | 57    |   |  |   | 69    |   |  |   | 79    |  
|Interest expense, including amortization of premiums, discounts and debt issuance costs                                                |  |                              | 309   |   |                          |      | 607   |   |      |   | 584   |      |  |   | 573   |   |  |   | 541   |   |  |   | 465   |  
|Interest capitalized                                                                                                                   |  |                              | 4     |   |                          |      | 7     |   |      |   | 9     |      |  |   | 13    |   |  |   | 24    |   |  |   | 44    |  
|                                                                                                                                       |  |                              |       |   |                          |      |       |   |      |   |       |      |  |   |       |   |  |   |       |   |  |   |       |  
|Total fixed charges                                                                                                                    |  | $                            | 336   |   |                          | $    | 668   |   |      | $ | 647   |      |  | $ | 643   |   |  | $ | 634   |   |  | $ | 588   |  
|                                                                                                                                       |  |                              |       |   |                          |      |       |   |      |   |       |      |  |   |       |   |  |   |       |   |  |   |       |  
|Ratio of earnings to fixed charges                                                                                                     |  |                              | 3.6   |   |                          |      | 3.3   |   |      |   | 3.7   |      |  |   | 3.7   |   |  |   | 4.8   |   |  |   | 5.8   |