This number has hounded me with phone calls all day, but will not leave a voicemail. They are not listed in reverse lookup with At&t. They've resorted to paging. I found another report on this number of the same scenerio online at another site.

I got a call from this number. They called several times today and will not leave a voice mail. Now they are paging me. I can't find the number in the att directory online.

They keep calling for someone that doesn't live here, i told them wrong number several times

They keep calling and leave no message.  I called the number and asked why they were calling.  They wanted to know if I was in Missouri and if I knew a certain person. I asked if they were a collection agency and they didn't reply just to give their number to me.

They called a family member of mine incessantly, but would not divulge any information.  Finally, my family member got them to give him a phone number to reach them. My family member was not going to give them any information without receiving any; we have been victims of account theft several times.  I called the number and was greeted derisively by "Michelle".  At first Michelle refused to even say who she was affiliated with, etc.  I finally was told that she is with ACP, and that she has "sensitive information".  I told her that if she couldn't even tell me what "ACP" stood for then I couldn't help her, and hung up.