Newsroom Press Release

June 28, 2005

KDDI Corporation Expands Operations at Equinix with Move to Tokyo Data Center

Tokyo, Japan — June 28, 2005 — Equinix, Inc. (Nasdaq: EQIX), the leading provider of network-neutral data centres and Internet exchange services, today announced that KDDI Corporation, a leading carrier in Japan serving more than 2.8 million Internet subscribers, has installed a network point of presence (PoP) in Equinix's Tokyo Internet Business Exchange™ (IBX®) centre.

An Equinix customer in the U.S. since 2002, KDDI's deployment into Equinix Tokyo IBX enables them to directly offer their services to customers and other enterprises hosted within the Equinix IBX. As a result, customers colocating in Equinix Tokyo IBX will gain access to lower-cost KDDI's network services; particularly corporate broadband services, which include internet gateway services, ultra-high-speed dedicated line services, and Ether-VPN services.

Equinix's carrier-neutral business model is one of the key factors that led KDDI to select Equinix's Tokyo data center for their PoP location. The combination of enhanced infrastructure at Equinix and high-quality network services from KDDI meets the high expectations of both Japanese businesses and consumers. Equinix's data center customers can now connect to the KDDI backbone network directly without needing to go through a regional carrier.

"KDDI seeks to increase our market share through the continuous enhancement of our products and services. The deployment of this new PoP at Equinix's Tokyo data center means that we can deliver high-quality services to data center customers more economically than previously," said Mr. Tadashi Onodera, president of KDDI Corporation.

"As the leading neutral co-location player in Japan, Equinix is committed to working with our customers to ensure a flexible platform that conveniently enables the expansion of operations," said David Wilkinson, country manager of Equinix Japan. "In addition, we have expanded our suite of Equinix Command Center (ECC) managed service offerings to further respond to the specific needs of the Asia-Pacific market."

Forward Looking Statements

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 acquiring, operating and constructing IBX centers and developing, deploying and delivering Equinix services; unanticipated costs or difficulties relating to the integration of IXEurope into Equinix; a failure to receive significant revenue from customers in recently built out data centers; failure to complete any financing arrangements contemplated from time to time; competition from existing and new competitors; the ability to generate sufficient cash flow or otherwise obtain funds to repay new or outstanding indebtedness; the loss or decline in business from our key customers; the results of any litigation relating to past stock option grants and practices; 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.

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