Ok... So am getting these [***] calling to from a bunch of numbers like many here. What I did was call Verizon (cause I have FiOS and with the digital voice service you can block up to 10 numbers) to ask if I could just block the entire 347-502-25xx exchange. What this great guy, Shaun, told me that these calls are not just annoying but are in fact the very definition os 'nuisance' call and are "unlawful".
He explained that we should call the Verizon nuisance line at 1-800-257-2969 and file a complaint. Just to give you a heads up you will need to do it from each line you have that you received a call on. In my case 2 lines.
Anyway you can read all about it on Verizon's site: <http://www22.verizon.com/Support/Residential/ ... neral/95622.htm> or just google "verizon unlawful call center"
I called the number back and got an automated system that asked if I wanted to be put on their do not call list by pressing 1. I pressed 1. Of course, I'm always afraid that gives them verification that it's a live phone number and that I'll get even more calls from them.