Centennial Communications Schedules Conference Call and Webcast Concerning Fourth-Quarter Results

Centennial Communications Corp. (NASDAQ: CYCL) ("Centennial") expects to release its fiscal fourth-quarter 2005 financial results on Thursday, August 11, 2005. The Company's earnings release will be available on Centennial Communications' Investor Relations website at http://www.ir.centennialwireless.com.

Centennial will host a conference call to discuss the results at 8:30 a.m. EST the same day. Callers should dial (800) 810-0924 to access the call. The conference call will be simultaneously webcast over the Internet and will be available through the Company's Investor Relations website at http://www.ir.centennialwireless.com. The webcast will also be available at http://www.streetevents.com/. A replay of the webcast will be available at both sites through August 25, 2005. Callers can also dial (888) 203-1112, Access Code 9264583 to access an audio replay of the conference call.

ABOUT CENTENNIAL

Centennial Communications (NASDAQ: CYCL), based in Wall, NJ, is a leading provider of regional wireless and integrated communications services in the United States and the Caribbean with over 1.1 million wireless subscribers. The U.S. business owns and operates wireless networks in the Midwest and Southeast covering parts of six states. Centennial's Caribbean business owns and operates wireless networks in Puerto Rico, the Dominican Republic and the U.S. Virgin Islands and provides facilities-based integrated voice, data and Internet solutions. Welsh, Carson Anderson & Stowe and an affiliate of the Blackstone Group are controlling shareholders of Centennial. For more information regarding Centennial, please visit our websites: http://www.centennialwireless.com/, http://www.centennialpr.com/ and http://www.centennialrd.com/

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