UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

SCHEDULE 14A INFORMATION

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o Preliminary Proxy Statement
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o Definitive Proxy Statement
þ Definitive Additional Materials
o Soliciting Material Pursuant to §240.14a-12

MEDIACOM COMMUNICATIONS CORPORATION

(Name of Registrant as Specified in its Charter

(Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

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EXPLANATORY NOTE:

On February 22, 2011, Mediacom Communications Corporation (“Mediacom”) issued a press release announcing that Glass, Lewis & Co., LLC, a governance analysis and proxy voting firm, recommended that Mediacom stockholders vote for the previously announced Agreement and Plan of Merger, dated as of November 12, 2010, providing for the acquisition of Mediacom by an entity formed by Rocco B. Commisso. A copy of the press release is included below.

Glass Lewis Joins Institutional Shareholder Services
in Recommending Stockholders Vote “FOR”
the Mediacom Communications Merger

Middletown, New York — February 22, 2011 — MEDIACOM COMMUNICATIONS CORPORATION (Nasdaq: MCCC) today announced that on February 18, 2011 Glass, Lewis & Co., LLC (“Glass Lewis”) issued a report recommending that MCCC stockholders vote “FOR” the proposal to adopt the merger agreement, pursuant to which MCCC would merge with an entity created by Mediacom’s founder, Chairman and Chief Executive Officer, Rocco B. Commisso, at the upcoming Special Meeting of Stockholders to be held on March 4, 2011.

Glass Lewis is a leading governance analysis and proxy voting firm serving institutional investors globally that collectively manage more than $15 trillion in assets. On February 14, 2011, Mediacom reported that Institutional Shareholder Services Inc., another prominent proxy advisory firm, issued a report recommending that public stockholders vote for the proposal to adopt the merger agreement.

As previously announced, under the terms of the merger agreement, MCCC stockholders (other than Mr. Commisso and his affiliates) will receive $8.75 in cash for each share of Class A and Class B common stock they own as of the closing of the merger contemplated by the merger agreement. Stockholders who have questions or need assistance in voting should call MacKenzie Partners at: (800) 322-2885 or (212) 929-5500.

Mediacom has filed a definitive proxy statement describing the proposed transaction with the Securities and Exchange Commission (“SEC”). STOCKHOLDERS ARE ADVISED TO READ THE DEFINITIVE PROXY STATEMENT BECAUSE IT CONTAINS IMPORTANT INFORMATION ABOUT THE MERGER AND ITS PARTICIPANTS. Stockholders may obtain a free copy of the definitive proxy statement and other documents filed by Mediacom at the SEC’s Web site (www.sec.gov) and from Mediacom.

About Mediacom Communications Corporation

Mediacom Communications is the nation’s eighth largest cable television company and one of the leading cable operators focused on serving the smaller cities in the United States, with a significant concentration in the Midwestern and Southeastern regions. Mediacom Communications offers a wide array of broadband products and services, including traditional and advanced video services such as digital television, video-on-demand, digital video recorders, high-definition television, as well as high-speed Internet access and phone service. For more information about Mediacom Communications, please visit www.mediacomcc.com.

Contacts:

Investor Relations		Media Relations
Calvin G. Craib		Thomas J. Larsen
Senior Vice President,		Group Vice President,
Corporate Finance		Legal and Public Affairs
(845) 695-2675		(845) 695-2754

Mediacom Communications Corporation
100 Crystal Run Road • Middletown, NY 10941 • 845-695-2600 • Fax 845-695-2639