UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: August 25, 2011 4:00 P.M.
Form: S-4
CIK: 0001169264
Company Name: SYNIVERSE HOLDINGS INC
File Number: 333-176382
CIK: 0001172203
Company Name: SYNIVERSE TECHNOLOGIES INC
File Number: 333-176382-03
CIK: 0001527002
Company Name: Rapid Roaming Co
File Number: 333-176382-02
CIK: 0001526999
Company Name: Syniverse ICX Corp
File Number: 333-176382-01