SVR Syniverse Holdings

Syniverse Technologies (NYSE:SVR) will release first quarter 2007 results after the market closes on April 30, 2007, and host a conference call at 4:30 p.m. ET to discuss the results. To participate on this call, U.S. callers may dial toll-free 1-866-383-8009; international callers may dial direct (+1) 617-597-5342. The passcode for this call is 86268781. This event will be webcast live over the Internet in listen-only mode at www.syniverse.com/investorevents. A replay of this call will be available beginning April 30 at 6:30 p.m. through May 14, 2007, at 11:59 p.m. ET. To access the replay, U.S. callers may dial toll-free 1-888-286-8010; international callers may dial direct (+1) 617-801-6888. The replay passcode is 52569843. About Syniverse Syniverse Technologies (NYSE:SVR) solutions allow more than 350 communications companies in over 50 countries to provide seamless mobile services by making it possible for disparate technologies and standards to interoperate. Syniverse�s flexibility and customer focus�permit its customers to quickly react to�market changes and demands,�enabling�the delivery of everything from voice calls to sophisticated data and video services wherever and whenever subscribers need them. Celebrating its 20th anniversary in 2007, Syniverse is headquartered in Tampa, Florida, U.S.A., and has offices in major cities around the globe. Syniverse is ISO 9001:2000 certified and TL 9000 approved, adhering to the principles of customer focus and quality improvement practices. More information is available at www.syniverse.com. Cautions about Forward-Looking Statements This press release contains �forward-looking statements� within the meaning of the Private Securities Litigation Reform Act of 1995. These include, but are not limited to, statements regarding the Company's plans, intentions and expectations. Such statements are inherently subject to a variety of risks and uncertainties that could cause actual results to differ materially from those projected. Given these concerns, investors and analysts should not place undue reliance on forward-looking statements.