No ID, no message.  Did not answer.  Tried to look it up online, site told me the number belonged to a guy in Citrus Heights, CA, and that it was a Qwest number and a landline.  That's all well and good, except that 602 is an Arizona area code, and 602-375 happens to be MY area code and exchange... I smell a spoofed number, robo call, and almost certainly a SCAMMER.