Who called from 5138436645

Call on my cell phone selling insurance quoting system.Want them to remove my number

these freaks called us at 2:00am!  would kick some butts if i knew who they were!

Have had several calls from this number- always hangups- last night had one at 2:20am. Getting sick of this crap!

I got one at 1:15 this morning too. Tried to call it back but just rings over adn over again of course no one answers Said it was a solicitation political call.

At 1:32 PM on 11 January 2012 I received a call from 513-843-6645 and my caller ID indicated the call came from S.A. Nichols Br.  I answered the phone and said "hello". They did not reply/respond, so I said "Nichols" and the person immediately hung up. I would like to know who they are as I am listed on DO NOT CALL.