These people call between 8:00 and 8:30, weekdays and weekends. I have told them to stop, and I am on the Do Not Call list. They have called from 305-368-8331 and 8332.
I picked up ONLY because I was expecting a call at that time, and didn't know if it could have been the person's cell #. I heard a recorded message in a young female voice that said it was "Lisa" calling. Needless to say I hung up and wished I hadn't disturbed our track record of letting calls go unanswered, regardless of whether we're home. These calls are so common that we don't even flinch when the phone rings.
BTW, the string that I saw later on our Caller ID is "V71813435400217". I believe that the "V" indicates that the number is from overseas, and routed to another our seas country and then to the US.