I was called today on 3/29/09 at 10:53 a.m. Central Time. I do not answer any number that I do not recognize and they did not leave a voice mail.

It is Carmax Auto Finance.  They block their name when they call.

it is carmax autofinance, moreso this is the number they use when they are bill collecting, aka loansharks

I called this number back and it says that it is Carmax Auto Finance...however I have never applied for auto financing through Carmax, it's an automated message that then asks for your account number, or social security number, i did not enter mine, and i do not have an account number, but i was unable to get ahold of an actual person.  Maybe try answering the next time they call to get information from them, however do not give them any of your info.

I also keep getting this number calling me with no voicemail