Syniverse is an American communications technology company with a focus on 5G roaming, communications platform as a service (CPaaS), A2P Messaging, roaming clearing and settlement, IPX, fraud prevention, mobile identify and authentication solutions, IoT, Private Networks and other emerging technologies leveraged by global enterprises and telecommunication carriers.

[5] Also in 2005, the company developed a platform to distribute wireless AMBER Alert messages about missing children in the United States;[6] offered the first 1xRTT/1xEV-DO solution to enable mobile data roaming for CDMA subscribers;[7] and became a founding investor, board member and technical participant of dotMobi, the registry for the .mobi domain.

[8] In 2006, Syniverse acquired Interactive Technology Holdings Limited (ITHL), expanding the company’s customer base in Asia Pacific and adding new products.

[14] Syniverse also acquired Wireless Solutions International (WSI) in 2009[15] and VeriSign, Inc.’s (NASDAQ:VRSN) Messaging and Mobile Media Services.

[17] In that same year, the company was chosen by CTIA - The Wireless Association to support the Latin America common short code (CSC) initiative.

[22] On Jun 23, 2021, Bloomberg reported that Carlyle-backed Syniverse was in talks to go public through a merger with M3-Brigade Acquisition II Corp., according to people with knowledge of the matter.

[25] On 27 September 2021, Syniverse informed the U.S. Securities and Exchange Commission of a hack to its Electronic Data Transfer (EDT) systems, affecting "approximately 235 of its customers".