Exhibit 12.1

Ratio of Earnings to Fixed Charges

Syniverse Holdings, Inc. and Predecessor

(dollars in thousands)

	Predecessor						Successor
	Year Ended December 31, 2000		Year Ended December 31, 2001		Period from January 1 to February 13, 2002		Period from February 14 to December 31, 2002		Year Ended December 31, 2003			Year Ended December 31, 2004
Net income	$	51,051	$	69,258	$	6,917	$	631	$	(57,926	)	$	15,063
Provision for income taxes		32,548		43,895		4,418		9,320		10,057			8,729
Income (loss) before income taxes	$	83,599	$	113,153	$	11,335	$	9,951	$	(47,869	)	$	23,792
Fixed charges:
Interest expensed net of amounts capitalized	$	22	$	—	$	—	$	45,428	$	46,235		$	44,577
Amortization of deferred financing costs and discount		—		—		—		8,677		11,893			8,351
Estimated interest factor on operating leases		403		463		59		864		871			1,016
Total fixed charges	$	425	$	463	$	59	$	54,969	$	58,999		$	53,944
Earnings:
Income before income taxes	$	83,599	$	113,153	$	11,335	$	9,951	$	(47,869	)	$	23,792
Fixed charges		425		463		59		54,969		58,999			53,944
Total earnings	$	84,024	$	113,616	$	11,394	$	64,920	$	11,130		$	77,736
Ratio of earnings to fixed charges		197.70		245.39		193.12		1.18		0.19			1.44