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

	2010			2011			2012
IFRS
Earnings:
Income before taxes on profits	Ps.	135,119,042		Ps.	128,544,828		Ps.	138,518,368
Plus:
Interest expense		19,934,283			22,716,083			26,846,386
Interest implicit in operating leases		411,202			547,039			700,366
Less:
Equity interest in net income of affiliates		(1,671,210	)		(1,923,997	)		(761,361	)
	Ps.	153,793,317		Ps.	149,883,953		Ps.	165,303,759
Fixed Charges:
Interest expense		19,934,283			22,716,083			26,846,386
Interest implicit in operating leases		411,202			547,039			700,366
	Ps.	20,345,485		Ps.	23,263,122		Ps.	27,546,752
Ratio of earnings to fixed charges		7.6			6.4			6.0