An unwanted call from this invalid (spoofed) Sierra Nevada area number arrived today.  When the call rolled to voice mail, the caller left no message, just dead space.  Robocallers (unlawful telemarketers) often spoof numbers to cover their tracks while trolling the phone lines seeking gullible schmucks to victims.

I concur that if you have received a call from this number, please report your experience on this page.  Thank you.