I got a voice mail message from this number (but it doesn't show in my missed call log, which is interesting).  It's a recorded message claiming that it's a final notification about my "case" with the "department of tax and crime investigation", and that my physical address is under investigation and an arrest warrant has been issued under my name.  She then says to call the number back to resolve the case.  Yeah right.  If I was actually in trouble for something I would know about it.  This has scam all over it.