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



|                                                                     |  |                |             |   |      |     |             |      |  |     |             | 
|-------------------------------------------------------------------- |  | -------------- | ----------- | - | ---- | --- | ----------- | ---- |  | --- | ----------- | 
|                                                                     |  | 2012(Restated) |             |   | 2013 |     |             | 2014 | 
|IFRS                                                                 |  |                |             |   |      |     |             |      |  |     |             | 
|Earnings:                                                            |  |                |             |   |      |     |             |      |  |     |             | 
|Profit before income tax                                             |  | Ps.            | 137,632,791 |   |      | Ps. | 105,367,219 |      |  | Ps. | 87,205,269  | 
|Plus:                                                                |  |                |             |   |      |     |             |      |  |     |             | 
|Interest expense                                                     |  |                | 26,846,386  |   |      |     | 32,189,161  |      |  |     | 33,134,918  | 
|Interest implicit in operating leases                                |  |                | 700,366     |   |      |     | 816,338     |      |  |     | 849,904     | 
|Current period amortization of interest capitalized in prior periods |  |                | 2,411,758   |   |      |     | 2,570,415   |      |  |     | 2,953,503   | 
|Less:                                                                |  |                |             |   |      |     |             |      |  |     |             | 
|Equity interest in net income of associates                          |  |                | (761,361    | ) |      |     | (36,282     | )    |  |     | 6,073,009   | 
|                                                                     |  |                |             |   |      |     |             |      |  |     |             | 
|                                                                     |  | Ps.            | 166,829,940 |   |      | Ps. | 140,943,133 |      |  | Ps. | 130,216,602 | 
|                                                                     |  |                |            
|Fixed Charges:                                                       |  |                |             |   |      |     |             |      |  |     |             | 
|Interest expense                                                     |  |                | 26,846,386  |   |      |     | 32,189,161  |      |  |     | 33,134,918  | 
|Interest implicit in operating leases                                |  |                | 700,366     |   |      |     | 816,338     |      |  |     | 849,904     | 
|Interest capitalized during the period                               |  |                | 3,152,811   |   |      |     | 3,002,756   |      |  |     | 3,258,928   | 
|                                                                     |  |                |             |   |      |     |             |      |  |     |             | 
|                                                                     |  | Ps.            | 30,699,536  |   |      | Ps. | 36,008,255  |      |  | Ps. | 37,243,750  | 
|                                                                     |  |                |            
|Ratio of earnings to fixed charges                                   |  |                | 5.4         |   |      |     | 3.9         |      |  |     | 3.5         | 
|                                                                     |  |                |             |   |      |     |             |      |  |     |             |