Received this call today, listed as "Schuller G". The caller made no attempt beyond my call blocker / screener to leave a message. Added number to blocked list.

I'm certain this is a spoofed number - I keep receiving a call with the nearly the same last 7 digits, just the prefix (and caller ID) changes. I've also had in the passed month:

626-836-8872   -   CALIFORNIA
341-836-8872   -   Name Unavailable
209-836-8872   -   Tracy, CA
323-836-8872   -   Cell Phone, CA