Got called by this number on my cell.  It's in my area code (669 is an overlay of 408) but I don't answer calls that I don't recognize.   No message left so I called back a little while later using my work phone (no sense giving them my cell number via caller ID).  Answered by a lady but I didn't understand all of her message.  Sounded like she was in a call center so I'm blocking this number.