ABOVENET COMPLETES DEPLOYMENT OF NETWORK OPERATIONS TO EQUINIX’S U.S. CENTERS

Network and Infrastructure Services Provider Now Peers and Sells Services Within Eight of Equinix’s U.S. Internet Hubs

Foster City, CA and New York, N.Y. – November 19, 2003 — Equinix, Inc. (Nasdaq: EQIX), the leading provider of network-neutral data centers and Internet exchange services, and AboveNet, Inc., the leading provider of optical infrastructure services that enable unconstrained information exchange, today announced that AboveNet has completed the deployment of its network operations to eight of Equinix’s U.S. Internet Business Exchange™ (IBX®) centers. The deployment will enable AboveNet to enhance the exchange of data with other networks and to sell its network and infrastructure services to the aggregation of companies participating in Equinix’s centers, including leading enterprises and content companies and every major carrier, network and ISP.

To enhance its exchange of data, or “peering,” with other Tier 1 networks, AboveNet is utilizing Equinix’s Internet Core Exchange™ service in the Washington, D.C., Silicon Valley and Chicago IBX centers. Peering is the fundamental way in which all Internet traffic – from email to video – is exchanged between the backbone networks that make up the Internet. Through Equinix Internet Core Exchange, AboveNet leverages the cost reduction and performance benefits of direct interconnection to a variety of networks, including the top six large IP backbone networks.

The presence of AboveNet in Equinix’s U.S. centers also provides existing Equinix customers with an additional infrastructure services provider option. AboveNet operates a global Tier 1 optical IP network, as well as a variety of digital communications infrastructure services, including a metropolitan area fiber network and managed services. By operating within the same center as AboveNet, Equinix IBX participants will be able to quickly and easily establish relationships with the provider.

“Equinix IBX centers offer an opportunity for us to enhance our peering infrastructure while making our services available nationwide to a large audience of enterprises, content companies and networks already operating within Equinix’s centers,” said Bill LaPerch, senior vice president of Network Services for AboveNet.

“The deployment of AboveNet’s operations to Equinix’s U.S. centers offers another Tier 1 network and managed services provider option for the community of IBX participants,” said Peter Van Camp, CEO of Equinix. “Similarly, Equinix offers AboveNet significant new revenue opportunities while providing it with a national infrastructure for critical Tier 1 peering needs.”

About AboveNet, Inc.
AboveNet, Inc. is the leading provider of network infrastructure services that enable unconstrained information exchange within and between businesses. AboveNet builds and operates an office-to-office, 100-percent optical network enabling customers to create an efficient, cost-effective network that breaks economic and performance barriers imposed in the last mile by complex legacy telecom infrastructures. With the most extensive metropolitan optical network in the world, data centers throughout the US and Europe, top quality managed services and a high-performance IP network, AboveNet is able to offer the most flexible and complete information exchange solutions in the industry.

An aggressive and agile player in the industry, AboveNet provides security, performance, scalability and reliability in a wealth of interconnected services designed to facilitate information exchange. The Company’s metropolitan fiber network provides the foundation for its offerings. This all optical metropolitan network, combined with AboveNet’s portfolio of integrated solutions, enable enterprise customers to rise above legacy networks to create truly customized networks that enable the real-time information exchange when and how it is needed.

About Equinix
Equinix is the leading global provider of network-neutral data centers and Internet exchange services for enterprises, content companies, systems integrators and network services providers. Through the company’s 13 Internet Business Exchange™ (IBX®) centers in five countries, customers can directly interconnect with every major global network and ISP for their critical peering, transit and traffic exchange requirements. These interconnection points facilitate the highest performance and growth of the Internet by serving as neutral and open marketplaces for Internet infrastructure services, allowing customers to expand their businesses while reducing costs.

Equinix and IBX are registered trademarks of Equinix, Inc. Internet Business Exchange is a trademark of Equinix, Inc.

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This press release contains forward-looking statements that involve risks and uncertainties. Actual results may differ materially from expectations discussed in such forward-looking statements. Factors that might cause such differences include, but are not limited to, the challenges of operating IBX centers and developing, deploying and delivering Equinix services; competition from existing and new competitors; the ability to generate sufficient cash flow or otherwise obtain funds to repay outstanding indebtedness; the loss or decline in business from our key customers and other risks described from time to time in Equinix’s filings with the Securities and Exchange Commission. In particular, see Equinix's recent quarterly and annual reports filed with the Securities and Exchange Commission, copies of which are available upon request from Equinix. Equinix does not assume any obligation to update the forward-looking information contained in this press release.