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

		2009		2010
IFRS
Earnings:
	Profit before income tax	143,200,212		135,119,043
	Plus:
	Interest expense	16,564,152		19,934,283
	Interest implicit in operating leases	588,565		411,202
	Less:
	Equity interest in net income of affiliates	(1,959,378	)	(1,671,211	)
		158,393,550		153,793,316
Fixed charges:
	Interest expense	16,564,512		19,934,283
	Interest implicit in operating leases	588,565		411,202
		17,153,077		20,345,485
Ratio of earnings to fixed charges		9.2		7.6