After buying WebUnited / expedient and then WV Fiber, it was announced last week that Host.Net will be using FiberLight to add some metro fiber in the South Florida LATA. FiberLight is the old Xspedius Fiber Group (and even older ASCI) that runs a fair sized fiber network in Florida.
"The metro fiber connections provided by FiberLight will enhance Host.net's reach within South Florida allowing it to deliver enhanced services. Host.net, a leading technology company in South Florida wants to create a 10G network with the lowest possible latency from Miami to West Palm Beach that will connect major data centers, commercial buildings and POPs to the Host.net facility in Boca Raton. [source]
Disclosure: I am a referral agent for FiberLight and have done some work for Host.Net.