I got a call from this unknown number and it was almost certainly a robocall:  The neon sign here is that I tried to call back and got a recorded message that this number was  'either not in service or has been disconnected'.  Typical of spoofed, computer-generated scam robocalls.  I actually live in the 303 area code, so it is often hard to ignore such calls.  I'm not sure about others on these threads, but I'm get an increasing number of robocall supposedly from my own area code.  Easy to ignore a weird number appearing to come from a small town in Arkansas, etc, but harder when they come from your own area code.  These predators are making it tougher to ignore them.  I just cannot understand why they call the same numbers over and over and over again with the same lame scams.  It must be incredibly easy for them to do this.....