Investor News Release

MIDDLETOWN, N.Y.--(BUSINESS WIRE)--July 6, 2000--Mediacom Communications Corporation (Nasdaq: MCCC) announced today that it has completed the acquisition of the cable television system owned by Spirit Lake Cable TV, Inc. for a purchase price of $10.8 million. This cable system serves more than 5,000 basic subscribers within the Company's North Central region.

Including the Spirit Lake transaction, Mediacom has thus far this year completed four acquisitions of cable systems serving in total approximately 17,000 basic subscribers for an aggregate purchase price of approximately $28.6 million. In addition, the Company has signed a definitive agreement and four letters of intent to acquire cable systems serving in total approximately 82,000 basic subscribers. A substantial portion of the basic subscribers served by these completed and pending acquisitions is contiguous or in close proximity to the Company's operating clusters in the Central, Midwest and North Central regions.

The acquisitions under letter of intent are subject to the negotiation and completion of definitive documentation, which will include customary representations and warranties and will be subject to a number of closing conditions, including regulatory approvals and other third party consents. No assurance can be given that such definitive agreements will be entered into or that if entered into, these acquisitions will be consummated. The Company expects to complete its pending acquisitions by the end of the first quarter of fiscal year 2001.

Mediacom is the 9th largest cable television company in the United States, after giving effect to its pending acquisitions. Mediacom's cable systems pass over 1.2 million homes and serve approximately 820,000 basic subscribers in 23 states, including its pending acquisitions. The Company offers an array of broadband services, including cable television, high-speed Internet access and advanced digital video programming. Mediacom was founded in July 1995 by Rocco B. Commisso to acquire and develop cable television systems serving principally non-metropolitan markets in the United States.

Any statements in this press release that are not historical facts are forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended. These forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from historical results or those Company anticipates. For a discussion of such risks and uncertainties, which could cause actual results to differ from those contained in the forward-looking statements, see the Company's Annual Report on Form 10-K for the year ended December 31, 1999 and "RISK FACTORS" in the Company's prospectus, dated February 3, 2000, filed with the Securities and Exchange Commission. The Company is under no obligation (and expressly disclaims any such obligation) to update or alter its forward-looking statements, whether as a result of new information, future events or otherwise.

More information about Mediacom Communications Corporation can be accessed on the Internet at: www.mediacomcc.com.

     CONTACT: Mediacom Communications Corporation, Middletown
              Mark E. Stephan, 845/695-2640
              Senior Vice President and Chief Financial Officer
              mstephan@mediacomcc.com