X0202 4 2003-12-01 0000879573 CENTENNIAL COMMUNICATIONS CORP /DE CYCL 0001212998 MATTHEWS JAMES R C/O WELSH, CARSON, ANDERSON & STOWE 320 PARK AVENUE, SUITE 2500 NEW YORK NY 10022 1 0 1 0 Common Stock 2003-12-01 4 J 0 4879521 0 A 4879521 I By WCAS Capital Partners III, L.P. The Reporting Person became a managing member of the sole general partner of WCAS Capital Partners III, L.P. ("WCAS CP III") effective 12/01/03, and may therefore be deemed to have acquired indirect beneficial ownership of the securities held by such limited partnership as of that date. The Reporting Person also indirectly beneficially owns 43,122,000 shares of Common Stock held by Welsh, Carson, Anderson & Stowe VIII, L.P. ("WCAS VIII"). The Reporting Person is one of several managing members of the respective sole general partners of WCAS VIII and WCAS CP III. Pursuant to Instruction (4)(b)(iv) of Form 4, the Reporting Person has elected to report as indirectly beneficially owned the entire number of securities beneficially owned by each such limited partnership. The Reporting Person disclaims beneficial ownership of any securities, and any proceeds thereof, that exceed his pecuniary interest therein, and/or that are not actually distributed to him. Jonathan M. Rather, Attorney-in-Fact 2004-10-08