Who called from 4253368069

I run an office and get this call everyday. When I am on another line, I cant tell it is that number, so I put a customer on hold to answer this number. It needs to STOP!!!

Please do not call. I've received numerous calls but there is never a message left.
Being on a do not list doesn't matter.

Just got the call today 11/27/12 @ 0955. It's political survey in which if you answer all the questions you get a free trip to the Bahamas. It asks that you press #1 to start the survey but in this case I did not because it has been my experience that there is always an opt out selection at the end of the recording. There was not in this case. In addition, I received the call while at work. I just happened to be the lucky girl who answered the call. I wonder if we'll continue to get these calls now.

These guys have been active in recent weeks.  MRKRCH - I've gotten at least a half dozen calls in the last month all from different numbers.

I want these calls to stop how can you stop it?