Contact Us

Street Address
9675 SE 36th Street Suite 110
Mercer Island, Wa 98040

Telephone/Fax Phone: +1-206-905-5000
Fax: +1-206-905-5001
Toll-free: +1-888-SEMAPHORE

Network Operations Center
Phone: +1-206-905-6000
Email: support@semaphore.com

Email
Sales: sales@semaphore.com
General: info@semaphore.com
Billing: billing@semaphore.com

Managed Services and ISP

Did you know that Semaphore provides managed services like datacenter outsourcing (co-location), ISP Services, Managed WAN Services, Network Monitoring, etc.?

If you have any complaints or concerns about the on-line activities of one of our managed services or ISP customers, please let us know by email at: abuse@semaphore.com