Investor News Release

Middletown, NY --- February 4, 2000 --- Mediacom Communications Corporation (“Mediacom”) today announced the commencement of the initial public offering of 20,000,000 shares of its Class A Common Stock at a price of $19.00 per share. All of the shares are being sold by the Company. The Company has granted the underwriters an option to purchase up to an additional 3,000,000 shares of common stock to cover over-allotments.

The Class A Common Stock will trade on The Nasdaq Stock Market’s National Market under the trading symbol “MCCC.”

The offering is being made through an underwriting group managed by Credit Suisse First Boston Corporation, Salomon Smith Barney Inc., Donaldson, Lufkin & Jenrette Securities Corporation, Goldman, Sachs & Co., Merrill Lynch, Pierce, Fenner & Smith Incorporated, Chase Securities Inc., CIBC World Markets Corp. and First Union Securities, Inc. A copy of the prospectus related to the offering may be obtained from the offices of Credit Suisse First Boston Corporation, Eleven Madison Avenue, Attn: Prospectus Department, New York, NY 10010; and Salomon Smith Barney Inc., 388 Greenwich Street, New York, NY 10013.

Mediacom is the 9th largest cable television system operator in the United States based on customers served by wholly-owned systems after giving effect to its pending acquisitions and recently announced industry transactions. Mediacom’s cable systems pass approximately 1.1 million homes and serve approximately 744,000 basic subscribers, including its pending acquisitions. Mediacom was founded in July 1995 by Rocco B. Commisso, its Chairman and Chief Executive Officer, to acquire and develop cable television systems serving principally non-metropolitan markets of the United States.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of these securities in any State or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the security laws of any such State or jurisdiction.