AboveNet Addresses Growing Bandwidth Demands at IO

NEW YORK, NY, August 18, 2009 - AboveNet, Inc., (NYSE:ABVT) , a leading provider of high bandwidth connectivity solutions, announced that it is working with IO Data Centers at its Phoenix ONE facility to provide an array of low-latency, gigabit speed networking services. IO 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 IO Data Centers' next generation colocation facility, allowing IO's customers to benefit from AboveNet's extensive fiber network.

"We have worked collaboratively with IO 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 IO's customers to have reliable, industry-leading network connectivity."

IO Data Centers' President and Founder Anthony Wanger said, "IO 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 15 top U.S. metro markets and London. AboveNet's network is widely used in demanding markets such as financial services, media, health care, retail and government.