Investor Relations

Investor Contacts

Topic	Contact
Change of ownership Change of address Exchange of common stock certificates Stock transfer Stockholder records	Zhone Technologies' Transfer Agent Computershare Trust Company, N.A. Po Box 43070 Providence, RI 02940-3070 +1 303 262 0600 +1 303 262 0700 Inquiries

General company questions Investor events Investor Web site	Investor Relations Contact Zhone Technologies Investor Relations @ Zhone Way 7195 Oakport Street Oakland, CA 94621 510-777-7013 Investor Relations