JERICHO, NY, October 14, 2008 - Optimum Lightpath, an industry leader in providing advanced Ethernet-based communications services over its Intelligent Enterprise Network, today announced that it has connected more than 3,000 buildings to its expansive fiber-to-the-premises network.

With this milestone, Optimum Lightpath has more fiber-lit buildings on its fully owned and managed network than any other individual competitive local exchange carrier (CLEC) locally and in the top 40 metropolitan area markets¹. Optimum Lightpath’s network, built to meet the needs of businesses across the tri-state area, now extends more than 3,200 route miles across New York, New Jersey and Connecticut. More than 33,000 businesses in those 3,000 buildings can easily access Optimum Lightpath services and become a customer in as little as 30 days.

The ubiquity of the Optimum Lightpath network enables its customers to reach their tri-state area locations on a single, seamless, diverse network. Optimum Lightpath has continued to expand the reach of its network, and the breadth and depth of its services, in order to meet the evolving needs of some of the most demanding customers in the largest business market in the U.S.

Mack-Cali, a leading real estate investment trust (REIT), which owns and manages almost 34 million square feet of class A office and office/flex properties in the Northeast and Mid-Atlantic regions, offers Optimum Lightpath’s services in many of the buildings that it owns and manages in Westchester County and New Jersey, viewing it as a key differentiator in the competitive New York metropolitan commercial real estate market.

“In today’s day and age, high-speed bandwidth and diversity are major factors when companies choose a location to ultimately locate their businesses,” said Jeffrey M. Warner, Vice President of Leasing, Mack-Cali Realty Corporation. “Mack-Cali has made an effort over the last 10 years to work with telecommunications companies to bring the latest in fiber optic and telecommunications technology to our buildings. Being able to offer Optimum Lightpath’s all-fiber network to our building tenants contributes to allowing us to accomplish this objective.”

“The momentum and growth Optimum Lightpath is experiencing demonstrates that our Ethernet offering is ideally positioned to support the high-level bandwidth and sophisticated capabilities that mid- to large-sized businesses require,” said Dave Pistacchio, General Manager, Optimum Lightpath. “We have clearly assumed a leadership role in the industry and are uniquely positioned to deliver advanced technology and value to our customers.”

With more than 3,000 lit commercial buildings across the New York tri-state area, Optimum Lightpath’s Intelligent Enterprise Network is designed with the scalability to deliver high bandwidth capacity and network speeds and is supported by built-in intelligence for optimized business performance.

Businesses interested in learning more about these new services and all of Optimum Lightpath’s services can visit optimumlightpath.com or call 1-877-LIGHTPATH.

¹According to the GeoResults analysis of the 2008 Telecordia / CLONES database.

About Optimum Lightpath
Optimum Lightpath, a division of Cablevision Systems Corporation (NYSE: CVC), is an industry leader in providing advanced Ethernet-based data, Internet, voice, video transport solutions and managed services to businesses across the New York metropolitan area. Optimum Lightpath’s Intelligent Enterprise Network is a highly reliable, resilient and scalable fiber-to-the-business-premises network extending more than 3,200 route miles and is connected to more than 3,000 buildings. Exclusively focused on meeting customer needs in the world’s largest business market for 20 years, Optimum Lightpath has been continually recognized for its high level of customer service. For 10 straight years, the New York State Public Service Commission has given Optimum Lightpath its Commendation of Excellence. Optimum Lightpath has received many industry awards for innovation and leadership. For more information, visit optimumlightpath.com.

About Cablevision
Cablevision Systems Corporation (NYSE: CVC) is one of the nation's leading media and entertainment companies. Its cable television operations serve more than 3 million households in the New York metropolitan area. The company's advanced telecommunications offerings include its iO TV^® digital television, Optimum Online^® high-speed Internet, Optimum Voice^® digital voice-over-cable, and its Optimum Lightpath integrated business communications services. Cablevision operates several successful programming businesses, including AMC, IFC, Sundance Channel and WE tv, through Rainbow Media Holdings LLC, and serves the New York area as publisher of Newsday and other niche publications through Newsday LLC. In addition to these businesses, Cablevision owns Madison Square Garden and its sports teams, the New York Knicks, Rangers and Liberty. The company also operates New York's famed Radio City Music Hall, the Beacon Theatre and the Chicago Theatre and owns and operates Clearview Cinemas.

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