HFC - (Hybrid Fiber Coax) - Hybrid Fiber Coax is a type of network that has both copper coaxial cables and fiber-optic cables. Cable Multiple System Operators (MSOs) throughout the world are upgrading coaxial cable systems to hybrid fiber coax (HFC) cable networks to deliver high-speed data and Internet services as well as cable telephony, competitive local exchange service, digital multimedia services and multi-channel television.