I get calls from this number multiple times per day immediately after I have a new prepaid cell phone from AT&T. The important thing is that I don't tell anybody else this phone number yet. I suspect how they know my new phone number and why they call my prepaid phone so many times per day and do not leave any message. So annoying!!!
I too get calls from this number multiple times per day. Very early in the morning, very late at night and they do not leave messages. They seem to have multiple numbers. I had one numbered by my phone company, the calls keep coming. They just changed the last 4 numbers.
This caller is a Debt Collection agency with a very bad reputation "Diversified Consultants" - you can google them, their website is: http://www.dcicollect.com/