Caller ID read Cheyenne WY. It rang three times. I think they are wise to the 4th ring going to voice mail and then they have to pay a connection fee. I didn't answer it and I blocked it. We use Vonage and they only allow 25 blocked calls. You can fill that up by Wednesday! We also have iPhones. I have my iPhone ring when someone calls our landline. I block the call on my iPhone and when they call again the home phone rings twice and the iPhone doesn't ring at all.
Try searching your number on the both the Dunn and Bradstreet and Manta websites. I was receiving calls for a business on one of my previous home phone numbers. I searched my number and discovered that it was listed as belonging to the business in question. I contacted both Dunn and Bradstreet and Manta demanding that they remove my number from their websites. Manta removed honored my demand, however D&B did not.