I also received a call on 14 Feb 2013. I got another call on 19 May 2013. When I called back I got a recorded message saying the number was no longer in service or it had been disconnected.
It is relentless...my phone rings off the hook with unwanted calls from random numbers. BUT 610-365-5023 calls 5 times a day. On the do not call list, what a joke our government at WORK. lol