Business Editors/High-Tech Writers

MIDDLETOWN, N.Y.--(BUSINESS WIRE)--Feb. 17, 2004--MEDIACOM COMMUNICATIONS CORPORATION (Nasdaq: MCCC) today announced that it has virtually completed its program to double the download and upload speeds of its Mediacom Online(sm) high-speed Internet service to residential customers three months ahead of schedule. The new maximum 3Mbps download and 256Kbps upload speeds (up from 1.5Mbps and 128Kbps, respectively) were previously scheduled for deployment in select markets as early as February 1, 2004, with full deployment in all markets by May 31, 2004.

"More than 99% of our high-speed Internet residential customers can now experience the new faster speeds by simply logging on to the Internet and starting their session," said JR Walden, Vice President of Mediacom Online. "Completing the speed enhancement program much earlier than expected demonstrates our ability to quickly leverage Mediacom's fiber-upgraded network and technical expertise. Our broadband infrastructure continues to give us the scale and flexibility to deploy new and improved services."

The new speeds provide Mediacom Online residential customers benefits such as faster surfing, execution of online transactions and transmission of large files, as well as more responsive online gaming.

Company Description

Mediacom Communications is the nation's 8th largest cable television company and the leading cable operator focused on serving the smaller cities and towns in the United States. The Company's cable systems pass approximately 2.74 million homes and serve about 1.55 million basic subscribers in 23 states. Mediacom Communications offers a wide array of broadband products and services, including traditional video services, digital television, high-speed Internet access, video-on-demand and high-definition television. More information about the Company can be accessed on the Internet at: www.mediacomcc.com.

Forward-Looking Statements

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. In some cases, you can identify those forward-looking statements by words such as "may," "will," "should," "expects," "plans," "anticipates," "believes," "estimates," "predicts," "potential," "forecasts," or "continues" or the negative of those words and other comparable words. These forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from historical results or those the Company anticipates.

Factors that could cause actual results to differ from those contained in the forward-looking statements include: competition in the Company's video and high-speed Internet access businesses; the Company's ability to achieve anticipated customer and revenue growth and to successfully introduce new products and services; increasing programming costs; changes in laws and regulations; the Company's ability to generate sufficient cash flow to meet its debt service obligations; and the other risks and uncertainties described in the Company's annual report on Form 10-K for the year ended December 31, 2002 and the other reports and documents the Company files from time to time with the Securities and Exchange Commission. The Company is under no obligation to (and expressly disclaims any such obligation to) publicly update or alter its forward-looking statements made in this press release, whether as a result of new information, future events or otherwise.

    CONTACT: Mediacom Communications
             Mark E. Stephan
             Executive Vice President and 
             Chief Financial Officer