Phone call from this number.  Does anyone know who it is?

Yes they are a collection agency that is breaking all the laws.  It is against federal law to call you and tell you that they are going to put a warrant out for your arrest, garnish your wages, anything that is threatening.  They will not even send you any information on what they are trying to collect and you can't get their street address.  As far as I know they say they are collecting a debt from Ace Payday Loans.  Tell them to not call you and send you something in the mail.   I will come back when I find out how to file a complaint against them.
Has anyone else gotten call from this number?

yes they call with this number and leave an automated message telling u to call 866-402-4043 look that number up and u will find out its all a big scam :)

Yes the keep call my work. I need to how to stop them.  They even called my HR department.

I did got a call  today  April 16, 2013
telling me that they have no choice but to
Get a lawyer.