EXHIBIT 99.1

Joint Filer Information

Name:     i-STT Investments Pte Ltd

Address:     51 Cuppage Road, #10-11/17 StarHub Centre, Singapore 229469

Designated Filer:     STT Communications Ltd

Issuer & Ticker Symbol:     Equinix, Inc. (EQIX)

Date of Event Requiring Statement:     November 21, 2003

Signature:

         
    i-STT INVESTMENTS PTE LTD
         
    By:   /s/ Pek Siok Lan
       
    Name:   Pek Siok Lan
    Title:   Director