Iron Mountain Incorporated Schedules Fourth Quarter and Full Year 2002 Earnings Release and Conference Call

February 21, 2003

Boston, MA - Iron Mountain Incorporated (NYSE:IRM), the leader in outsourced records and information management services, today announced that its press announcement of fourth quarter and full year 2002 results is scheduled to be released before market hours on Thursday, February 27, 2003. A conference call has been scheduled to discuss the fourth quarter and full year 2002 results and a taped replay of the conference call will be available shortly after the end of the call. Call and replay information are as follows:
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Call Date: Thursday, February 27, 2003
Call Time: 11:00 A.M. (Eastern Time)
Call Hosts: Richard Reese, Chief Executive Officer
John Kenny, Chief Financial Officer

Domestic Call Dial In: (800) 599-9816
International Call Dial In: (617) 801-9702
Access Code: 642513

Online Info: www.ironmountain.com at the Investor Relations page

Live Simulcast (listen only) available during the call.

Replay available one hour after the conclusion of the call until March 6, 2003.

Replay Domestic Dial In: (888) 286-8010
Replay International Dial In: (617) 801-6888
Replay Access Code: 73064

Contact:

Stephen Golden
Investor Relations
Iron Mountain
Phone: 617-535-4799
sgolden@ironmountain.com