Contact Us

How can we help you?

Sales inquiries

Toll-free: 800-207-3714
Phone: 410-865-8915
International: +44 20 7012 5555
+ Contact sales

Industry analysts

Phone: 704-844-0567


Phone: 877-857-7377

Investor relations

Phone: 877-243-6273

Technical support

Phone: 800-CIENA-24 (243-6224)
+ Customer service center

Training & documentation

Fax: 410-865-4920

Careers at Ciena

When you join a company focused on developing industry-leading solutions for critical networks around the globe, your expertise is applied in new and impactful ways every day.
Learn more about Careers at Ciena

Corporate Headquarters

7035 Ridge Road
Hanover, Maryland 21076

Toll-free: 800-921-1144
Phone: 410-694-5700
Fax: 410-694-5750