Thank you for your comment. It save a lot of us from answering these obnoxious calls. Blessings to you for your efforts to prevent further investigations.
Just received a call from this number. Not surprisingly, both the number and the posted descriptions are similar to those for 206-496-0460 from which I received a couple of calls a few weeks ago.
I received this call 2:13 pm central time on Sunday 4/29/2012. They called once, and it went to the answering machine. Not thirty seconds later, they called again, and the answering machine received several beeps.