Unless they have obtained a list of customers and their phone numbers from Ohio Edison, not very likely, they do not have a call list they are working from. Rather they know which exchanges are in Ohio Edison's service territory and simply program their automated calling systems to dial every number in that exchange placing unanswered of "soft refusal" calls back in the queue to be called again. So to stop the calls you have to tell them to place your number on their internal do not call list. That should be all you need to do but often that is not enough. If you can ever get the registered company name you can always try and look them up and send a "cease calling" demand letter, Certified, Return Receipt. Then when they continue to call you can sue them for $1500 per call.