Exhibit 7.1

STATEMENTS REGARDING COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

AMÉRICA MÓVIL, S.A.B. DE C.V. AND SUBSIDIARIES

RATIO OF EARNINGS TO FIXED CHARGES

Thousands of
Mexican pesos



|      |  |                                                                            |  |             |   |  |            |   |  |            |   |  |            |   |  |            |  
|----- |  | -------------------------------------------------------------------------- |  | ----------- | - |  | ---------- | - |  | ---------- | - |  | ---------- | - |  | ---------- | -
|      |  |                                                                            |  | 2004        |   |  | 2005       |   |  | 2006       |   |  | 2007       |   |  | 2008       |  
|      |  |                                                                            |  | As adjusted |   |  |            |   |  |            |  
|      |  | Mexican FRS                                                                |  |             |   |  |            |   |  |            |   |  |            |   |  |            |  
|      |  |                                                                            |  |             |   | 
|      |  | Income before taxes on profits                                             |  | 28,002,273  |   |  | 33,432,068 |   |  | 61,527,609 |   |  | 81,151,600 |   |  | 79,463,731 |  
|      |  |                                                                            |  |             |   | 
|Plus: |  | Fixed charges:                                                             |  |             |   |  |            |   |  |            |   |  |            |   |  |            |  
|      |  | Interest expense                                                           |  | 6,005,642   |   |  | 9,151,266  |   |  | 9,618,645  |   |  | 9,865,355  |   |  | 11,610,982 |  
|      |  | Interest implicit in operating leases                                      |  | 121,676     |   |  | 189,596    |   |  | 263,090    |   |  | 338,440    |   |  | 352,989    |  
|      |  |                                                                            |  |             |   |  |            |   |  |            |   |  |            |   |  |            |  
|      |  | Earnings under Mexican FRS                                                 |  | 34,129,591  |   |  | 42,772,929 |   |  | 71,409,344 |   |  | 91,355,395 |   |  | 91,427,702 |  
|      |  |                                                                            |  |             |   |  |            |   |  |            |   |  |            |   |  |            |  
|      |  | Mexican FRS:                                                               |  |             |   |  |            |   |  |            |   |  |            |   |  |            |  
|Less: |  | Equity interest in net (loss) income of affiliates                         |  | 103,474     |   |  | 45,734     |   |  | (37,778    | ) |  | (57,621    | ) |  | (109,416   | )
|      |  |                                                                            |  |             |   | 
|      |  | U.S. GAAP:                                                                 |  |             |   |  |            |   |  |            |   |  |            |   |  |            |  
|      |  | Total U.S. GAAP adjustments, net                                           |  | (226,764    | ) |  | (98,653    | ) |  | (3,870,766 | ) |  | (3,278,261 | ) |  | (5,413,208 | )
|Less: |  | Deferred income tax                                                        |  | 60,507      |   |  | (32,350    | ) |  | 1,948,894  |   |  | 57,859     |   |  | (2,272,321 | )
|Less: |  | Interest capitalized during the period                                     |  | (680,119    | ) |  | (1,448,771 | ) |  | (974,757   | ) |  | 21,851     |   |  | 5,764,559  |  
|Plus: |  | Non-controlling interest                                                   |  | 394,204     |   |  | 73,993     |   |  | 87,517     |   |  | 109,822    |   |  | 89,892     |  
|Plus: |  | Depreciation of capitalized interest                                       |  | 167,670     |   |  | 269,541    |   |  | 346,648    |   |  | 424,143    |   |  | (346,528   | )
|      |  |                                                                            |  |             |   |  |            |   |  |            |   |  |            |   |  |            |  
|      |  | U.S. GAAP adjustments without deferred income tax and capitalized interest |  | (284,501    | ) |  | (1,236,239 | ) |  | (2,462,464 | ) |  | (2,664,586 | ) |  | (2,177,605 | )
|      |  |                                                                            |  |             |   | 
|      |  | Earnings under U.S. GAAP                                                   |  | 33,948,564  |   |  | 41,582,424 |   |  | 68,909,102 |   |  | 88,633,188 |   |  | 89,140,681 |  
|      |  |                                                                            |  |             |   | 
|      |  | Fixed charges:                                                             |  |             |   |  |            |   |  |            |   |  |            |   |  |            |  
|      |  | Interest expense under U.S. GAAP                                           |  | 5,447,200   |   |  | 7,892,091  |   |  | 8,906,978  |   |  | 10,225,646 |   |  | 17,728,531 |  
|Plus: |  | Interest capitalized during the period                                     |  | 680,119     |   |  | 1,448,771  |   |  | 974,757    |   |  | (21,851    | ) |  | (5,764,559 | )
|      |  |                                                                            |  |             |   | 
|      |  | Fixed charges under U.S. GAAP                                              |  | 6,127,318   |   |  | 9,340,862  |   |  | 9,881,735  |   |  | 10,203,795 |   |  | 11,963,971 |  
|      |  |                                                                            |  |             |   | 
|      |  | Mexican FRS                                                                |  | 5.6         |   |  | 4.6        |   |  | 7.2        |   |  | 9.0        |   |  | 7.6        |  
|      |  |                                                                            |  |             |   | 
|      |  | U.S. GAAP                                                                  |  | 5.5         |   |  | 4.5        |   |  | 7.0        |   |  | 8.7        |   |  | 7.5        |