Exhibit 99.1

             Equinix Reports New Developments on Stock Option Grants


    FOSTER CITY, Calif.--(BUSINESS WIRE)--June 29, 2006--Equinix, Inc.
(Nasdaq:EQIX) today announced that it received a grand jury subpoena
from the U.S. Attorney for the Northern District of California and it
intends to cooperate fully with the U.S. Attorney's Office in
connection with this subpoena. The subpoena requests documents
relating to Equinix's stock option grants and practices.
    As previously announced, Equinix is also currently cooperating
with the Securities and Exchange Commission regarding the SEC's
informal inquiry requesting documents related to Equinix's stock
option grants and practices.
    Prior to receiving either of these requests, and as previously
announced by Equinix on June 12th, the audit committee of the Equinix
Board of Directors has been conducting an internal review and analysis
of historical stock option practices and related accounting. The
Company requested the internal review following the release of a third
party report regarding the timing and pricing of stock option grants
at a large number of public companies. Independent outside legal
counsel is assisting the audit committee with this review.
    The Company also reported that it has been notified that a
shareholder derivative complaint was filed in the Superior Court of
the State of California, County of San Mateo on June 29, 2006. The
complaint against certain current and former officers and directors
alleges that since 2000 stock option grants to certain employees were
awarded with exercise prices that were lower than the market price on
the actual grant dates and resulted in breaches of fiduciary duties
with respect to the Company's historic stock option granting
practices. Equinix may be subject to other lawsuits from private
plaintiffs concerning this subject area, and Equinix does not
currently expect to disclose these additional lawsuits.

    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 Internet Business Exchange(TM) (IBX(R)) centers in 11
markets in the U.S. and Asia, 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.

    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; a
failure to receive significant revenue from customers in
recently-acquired 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
internal or regulatory review of past stock option grants and
practices or any litigation relating to such 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 and registration statement on Form
S-3 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.


    CONTACT: Equinix, Inc.
             Jason Starr, 650-513-7402 (Investor Relations)
             jstarr@equinix.com
             or
             K/F Communications, Inc.
             David Fonkalsrud, 415-255-6506 (Media)
             dave@kfcomm.com