Exhibit 7.1

América Móvil, S.A.B. de C.V. and Subsidiaries Computation

of Ratio of Earnings to Fixed Charges Amounts in Thousands

of Mexican pesos, Except Ratios



|                                                                     |  |                |                |   |                |  |                |      |  |  |                |  
|-------------------------------------------------------------------- |  | -------------- | -------------- | - | -------------- |  | -------------- | ---- |  |  | -------------- | -
|                                                                     |  | 2011(Restated) |                |   | 2012(Restated) |  |                | 2013 | 
|IFRS                                                                 |  |                |                |   |                |  |                |      |  |  |                |  
|Earnings:                                                            |  |                |                |   |                |  |                |      |  |  |                |  
|Income before taxes on profits                                       |  |                | Ps.127,944,944 |   |                |  | Ps.137,632,791 |      |  |  | Ps.105,367,219 |  
|Plus:                                                                |  |                |                |   |                |  |                |      |  |  |                |  
|Interest expense                                                     |  |                | 22,716,083     |   |                |  | 26,846,386     |      |  |  | 32,189,161     |  
|Interest implicit in operating leases                                |  |                | 547,039        |   |                |  | 700,366        |      |  |  | 816,338        |  
|Current period amortization of interest capitalized in prior periods |  |                | 1,691,356      |   |                |  | 2,411,758      |      |  |  | 2,570,415      |  
|Less:                                                                |  |                |                |   |                |  |                |      |  |  |                |  
|Equity interest in net income of associates                          |  |                | (1,856,688     | ) |                |  | (761,361       | )    |  |  | (36,282        | )
|                                                                     |  |                |                |   |                |  |                |      |  |  |                |  
|                                                                     |  |                | Ps.151,042,734 |   |                |  | Ps.166,829,940 |      |  |  | Ps.140,943,133 |  
|                                                                     |  |                |               
|Fixed Charges:                                                       |  |                |                |   |                |  |                |      |  |  |                |  
|Interest expense                                                     |  |                | 22,716,083     |   |                |  | 26,846,386     |      |  |  | 32,189,161     |  
|Interest implicit in operating leases                                |  |                | 547,039        |   |                |  | 700,366        |      |  |  | 816,338        |  
|Interest capitalized during the period                               |  |                | 3,845,609      |   |                |  | 3,152,811      |      |  |  | 3,002,756      |  
|                                                                     |  |                |                |   |                |  |                |      |  |  |                |  
|                                                                     |  |                | Ps.27,108,731  |   |                |  | Ps.30,699,563  |      |  |  | Ps.36,008,255  |  
|                                                                     |  |                |               
|Ratio of earnings to fixed charges                                   |  |                | 5.6            |   |                |  | 5.4            |      |  |  | 3.9            |  
|                                                                     |  |                |                |   |                |  |                |      |  |  |                |