Investor Relations

Stock Information

Stock Exchange	Nasdaq Global Market
Stock Symbol	ZHNE
CUSIP Number for common shares	98950P108
Industry	Telecommunications Equipment
Insider Shares	39,851,880
Insider Percentage	26.3%
Shares Outstanding	151.4 million

Information as of Dec 31, 2009

Section 16(a) Filings

Zhone's Single Line Multi-Service architecture (SLMS™), allows carriers to concurrently deliver voice, new premium data and video services over copper or fiber access lines.