I do believe Verizon with the amount of fiber Frontier it has in place remember Verizon created Frontier read the history ::Frontier Communications ILEC Holdings, Inc. is a company created by Verizon Communications in 2009.
History
The company, sold to Frontier Communications on July 1, 2010, serves as a holding company for former Bell System, Contel, and GTE telephone operating companies that were owned by Verizon prior to July 1, 2010. The company was set up to allow for a Reverse Morris Trust merger, allowing Verizon to spin-off the company to Frontier tax-free. Its primary purpose was to transfer Frontier ILEC Holdings as well as Verizon debt that Frontier was to assume.
Once the purchase was completed, the relevant subsidiary company names were changed to reflect Frontier ownership.[1