Exhibit 7.1





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

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES



|                                                                     |  |                                                |             |  |      |     |            |      |  |     |            |  
|-------------------------------------------------------------------- |  | ---------------------------------------------- | ----------- |  | ---- | --- | ---------- | ---- |  | --- | ---------- | -
|                                                                     |  | 2014                                           |             |  | 2015 |     |            | 2016 | 
|                                                                     |  | (in thousands of Mexican pesos, except ratios) |            
|IFRS                                                                 |  |                                                |             |  |      |     |            |      |  |     |            |  
|Earnings:                                                            |  |                                                |             |  |      |     |            |      |  |     |            |  
|Income before taxes on profits                                       |  | Ps.                                            | 87,205,269  |  |      | Ps. | 56,140,433 |      |  | Ps. | 23,477,595 |  
|Plus:                                                                |  |                                                |             |  |      |     |            |      |  |     |            |  
|Interest expense                                                     |  |                                                | 33,134,918  |  |      |     | 32,596,851 |      |  |     | 35,896,985 |  
|Interest implicit in operating leases                                |  |                                                | 849,904     |  |      |     | 777,378    |      |  |     | 1,024,874  |  
|Current period amortization of interest capitalized in prior
periods |  |                                                | 2,953,503   |  |      |     | 3,026,890  |      |  |     | 3,169,558  |  
|Less:                                                                |  |                                                |             |  |      |     |            |      |  |     |            |  
|Equity interest in net income of associates                          |  |                                                | 6,073,009   |  |      |     | 1,426,696  |      |  |     | (189,950   | )
|                                                                     |  | Ps.                                            | 130,216,602 |  |      | Ps. | 93,968,248 |      |  | Ps. | 63,379,062 |  
|Fixed Charges:                                                       |  |                                                |             |  |      |     |            |      |  |     |            |  
|Interest expense                                                     |  |                                                | 34,134,918  |  |      |     | 32,596,851 |      |  |     | 35,896,985 |  
|Interest implicit in operating leases                                |  |                                                | 849,904     |  |      |     | 777,378    |      |  |     | 1,024,874  |  
|Interest capitalized during the period                               |  |                                                | 3,258,928   |  |      |     | 3,524,841  |      |  |     | 2,861,307  |  
|                                                                     |  | Ps.                                            | 37,243,750  |  |      | Ps. | 36,899,070 |      |  | Ps. | 39,783,166 |  
|Ratio of earnings to fixed
charges                                   |  |                                                | 3.5         |  |      |     | 2.5        |      |  |     | 1.6        |