MountainMan4865 Sep 29, 2020 10:49 PM Phone Service Out? We use Southern California Telephone, whose rates are awesome, but at the end of the day, it doesn't really matter. Frontier owns and maintains the lines. So if you're having an issue with the your system, it's likely to do with Frontier, but you will have to negotiate through your independent phone company to get it addressed. Frontier may seem crappy, but they bought out Verizon's copper hard line system to try to keep it alive, and was problematic from the get go. AT&T also dumped their copper phone line system, which Frontier purchased. Frontier started out as a community collective, buying up the copper lines the major companies were dumping. I believe they might be, currently, the largest holder of landline systems in the country, though I could be totally wrong.