Exhibit 12.1

Ratio of Earnings to Fixed Charges Syniverse Holdings, Inc. (dollars in thousands)

	Year Ended December 31, 2007		Year Ended December 31, 2006			Year Ended December 31, 2005		Year Ended December 31, 2004		Year Ended December 31, 2003
Net Income (loss)	$	52,419	$	89,724		$	9,804	$	15,063	$	(57,926	)
Provision for (benefit from) income taxes		31,310		(39,574	)		9,041		8,729		10,057
Income (loss) before income taxes	$	83,729	$	50,150		$	18,845	$	23,792	$	(47,869	)
Fixed charges:
Interest expensed	$	25,061	$	26,788		$	32,406	$	44,577	$	46,235
Amortization of deferred financing costs and discount		542		540			2,241		8,351		11,893
Estimated interest factor on operating leases		1,037		1,006			1,010		1,016		871
Total fixed charges		26,640		28,334			35,657		53,944		58,999
Earnings:
Income (loss) before income taxes		83,729		50,150			18,845		23,792		(47,869	)
Fixed charges		26,640		28,334			35,657		53,944		58,999
Total earnings	$	110,369	$	78,484		$	54,502	$	77,736	$	11,130
Ratio of earnings to fixed charges		4.14		2.77			1.53		1.44		0.19