Calix is a supplier of telecommunications access equipment for service providers. The company was incorporated in 1999.
Calix is a North American provider of broadband communications access systems and software for fiber- and copper-based network architectures that enable communications service providers to connect to their residential and business subscribers. Calix has shipped over eight million ports of its Unified Access portfolio to more than 900 North American and international customers, whose networks serve over 40 million subscriber lines in total.
Calix maintains facilities in Petaluma, CA, Minneapolis, MN, Boston, MA, Santa Barbara, CA, San Jose, CA, and Richardson, TX in the USA and a facility in Nanjing, China.
Calix competitors include Adtran, Alcatel-Lucent, Allied Telesis, Huawei, Tellabs, ZTE and Zhone Technologies.
Calix customers include CenturyLink, Windstream, Telephone and Data Systems, Inc., Frontier Communications, and over 900 other communications service providers globally, majority being in North America.