EXHIBIT 4.10 REGISTRATION RIGHTS AGREEMENT Dated as of February 9, 2004Registration Rights Agreement • February 25th, 2004 • Centennial Communications Corp /De • Radiotelephone communications • New York
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and-Centennial Communications Corp /De • February 25th, 2004 • Radiotelephone communications • New York
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CENTENNIAL COMMUNICATIONS CORP., as a Guarantor, and CENTENNIAL CELLULAR OPERATING CO. LLC, as Borrower, andCredit Agreement • February 25th, 2004 • Centennial Communications Corp /De • Radiotelephone communications • New York
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and EACH OF THE GUARANTORS LISTED ON THE SIGNATURE PAGES HERETO OR FROM TIME TO TIME PARTY HERETO BY EXECUTION OF A JOINDER AGREEMENT, as Guarantors in favor ofSecurity Agreement • February 25th, 2004 • Centennial Communications Corp /De • Radiotelephone communications • New York
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EXHIBIT 4.9 CENTENNIAL COMMUNICATIONS CORP. CENTENNIAL CELLULAR OPERATING CO. LLC CENTENNIAL PUERTO RICO OPERATIONS CORP. 8-1/8% SENIOR NOTES DUE 2014 PURCHASE AGREEMENT January 16, 2004Centennial Communications Corp /De • February 25th, 2004 • Radiotelephone communications • New York
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