Exhibit 99.1

          Equinix Announces End to SEC Stock Option Inquiry


    FOSTER CITY, Calif.--(BUSINESS WIRE)--Dec. 6, 2006--Equinix, Inc.
(Nasdaq: EQIX), the leading provider of network-neutral data centers
and Internet exchange services, today announced that the United States
Securities and Exchange Commission (SEC) has formally notified Equinix
that its investigation of Equinix's stock option granting practices
has been terminated and that no enforcement action has been
recommended.

    As previously disclosed in June 2006, Equinix received an informal
inquiry from the SEC relating to its stock option grants and
practices. Prior to receiving this request, the Audit Committee of the
Equinix Board of Directors commenced an internal review and analysis
of historical stock option practices and related accounting with the
assistance of independent outside legal counsel. In August 2006, the
independent review by the Audit Committee was completed.

    The SEC's recent notification followed a September 7, 2006
presentation by the Audit Committee and its legal counsel to the SEC
staff regarding the results of the Audit Committee's investigation.

    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; failure to receive the
proceeds from our loan commitments as expected; failure to increase
the debt financing on our Washington, D.C. area campus as expected;
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 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 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, Equinix Investor Relations, 650-513-7402
             jstarr@equinix.com
             or
             K/F Communications, Inc.
             David Fonkalsrud, Equinix Media, 415-255-6506
             dave@kfcomm.com