AboveNet addresses growing bandwidth demands at i/o Data Centers’ next-generation Phoenix ONE facility

NEW YORK, August 18, 2009 -- AboveNet, Inc., (NYSE:ABVT) (http://www.nyse.com/about/listed/abvt.html), a leading provider of high bandwidth connectivity solutions, announced that it is working with i/o Data Centers at its Phoenix ONE facility to provide an array of low-latency, gigabit speed networking services. i/o Data Centers provides data center solutions for some of the world’s largest corporations and Web properties.

AboveNet will provide fully redundant all-fiber access to i/o Data Centers’ next generation colocation facility, allowing i/o’s customers to benefit from AboveNet’s extensive fiber network.

 “We have worked collaboratively with i/o Data Centers to design a world-class, state-of-the-art, low latency fiber network,” said AboveNet President and CEO Bill LaPerch. “This network will allow i/o’s customers to have reliable, industry-leading network connectivity.”

i/o Data Centers’ President and Founder Anthony Wanger said, “i/o Data Centers offers carrier-neutral colocation and, by offering access to AboveNet’s highly optimized optical network, our customers will be able to achieve minimal latency while maintaining superior route diversity.  As the demand for bandwidth and 24/forever connectivity increases, we’re glad to be able to offer our customers access to a variety of Tier 1 providers like AboveNet.”

About AboveNet, Inc.
AboveNet, Inc. provides high-bandwidth connectivity solutions for business and carriers. Its private optical network delivers key network and IP services in and among top U.S. metro markets and globally. AboveNet's network is widely used in demanding markets such as financial services, media, health care, retail and government.

About i/o Data Centers
i/o Data Centers is the premier provider of wholesale colocation and data center solutions. Based in Arizona, i/o Data Centers designs, builds and operates highly reliable and energy efficient data centers for some of the world's largest corporations and Web properties. i/o Data Centers offers innovative and flexible colocation solutions including colocation cabinets, colocation cages and data center suites. For more information on i/o Data Centers visit: www.iodatacenters.com.

Media Contacts for i/o:
The Lavidge Company
480-998-2600
Marcia Scott x 569
mscott@lavidge.com
Lauren Pokras x 542
lpokras@lavidge.com

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This news release contains forward-looking statements that involve risks and uncertainties. Factors that could cause or contribute to such risks and uncertainties include, but are not limited to, general economic and business conditions, competition, changes in technology and methods of marketing, and various other factors beyond the Company’s control. This also includes such factors as are described from time to time in the SEC reports filed by AboveNet, Inc., including the most recently filed Form 8-K.