AboveNet Announces Ultra-Low Latency Guarantees Across Metro Services Portfolio
Delivering superior network performance for high bandwidth applications

WHITE PLAINS, Sept. 24 -- AboveNet, Inc., (NYSE:ABVT) a leading provider of high bandwidth connectivity solutions, has announced its industry-leading low latency guarantee. The program, called the Agility Guarantee, will offer customers ultra-low latency performance across the entire array of metro wave and Ethernet services that AboveNet provides in the top 15 U.S. markets.

AboveNet Chief Technology Officer, Rajiv Datta, said, “We are offering this guarantee of ultra-low latency performance to provide our most demanding customers the assurance they need for their critical applications. They require industry-leading low latency coupled with the highly reliable, high performance networks that we design and implement for them.”

There are a growing number of latency sensitive applications (such as VoIP and video) that impact end users across industries.  In addition to providing a high performance option to these customers, AboveNet’s Agility Guarantee is designed to meet the stringent requirements of industry segments such as:

• Financial Services Algorithmic Trading
• Energy/Oil Futures Trading
• Live Gaming Environments
• Media & video applications

“AboveNet is naturally positioned to provide ultra-low latency performance due to our fiber-intensive delivery model, and our focus on high bandwidth customers,” Mr. Datta said. “By offering these services with direct routing and minimal equipment interfaces, we can offer round-trip latencies as low as sub-1 millisecond for some of our services, which I believe is unmatched in the industry.”

• The program uses real-world metrics, instead of averages and one-way trip measurements:
• All guarantees are provided as round-trip delay values
• Guarantees apply for the end-to-end service, not just the POP-POP component
• Guarantees represent maximum values, not an “average” number

AboveNet’s Metro Services portfolio includes: (a) Metro Wave services which provide customers a completely private WDM-based network offering the ultimate in security, scalability and operational control, and (b) Metro Ethernet services which provide private and non-private options, including a range of reserved and guaranteed bandwidth availability choices.

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.

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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.