I didn't recognize the number so did not answer. No message was left. Blocked.

Scammer.  Inactive number being spoofed.

Got called by this number today as well, blocked it thanks to 949er and Bill.
This day has been full of spam calls, here's more #'s to add to your block list: 323-212-6368, 805-420-6420, 310-372-9458, 818-865-9082.

CALIFORNIA GREEN (Carol Williams) is s repeat scammer with multiple numbers being used. They are constantly calling to save energy with their solar panels.

I get calls all day from this number never answer since I don't recognize the number.  I have now blocked number but it seems for every number you block 4 more show up.