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			2011
IFRS
Earnings:
Profit before income tax	Ps.	143,200,212		Ps.	135,119,042		Ps.	128,544,828
Plus:
Interest expense		16,564,152			19,934,283			22,716,083
Interest implicit in operating leases		588,565			411,202			547,039
Less:
Equity interest in net income of affiliates		(1,959,378	)		(1,671,210	)		(1,923,997	)
	Ps.	158,393,550		Ps.	153,793,317		Ps.	149,883,953
Fixed Charges:
Interest expense		16,564,512			19,934,283			22,716,083
Interest implicit in operating leases		588,565			411,202			547,039
	Ps.	17,153,077		Ps.	20,345,485		Ps.	23,263,122
Ratio of earnings to fixed charges		9.2			7.6			6.4