Rcvd 1st unknown call at 12:41pm and again at 12:42pm today. Caller ID showed Spoofed Name as "California" (213-239-1276) using a unconfirmed Los Angeles California number.

I do not respond any any unidentified / unknown numbers hiding or blocking valid identification that can be verified by a known listed number.
Unable to confirm or validate caller's true identification or location - treated as a SCAM/Spoofed call

I used a inline call blocker that block any unwanted number from ringing my private home number.
Digitone Call Block 10 from Digitone Communications
Web site:  www.digitone.com  - Best investment i ever made to stop all unwanted / unidentifed numbers from ringing my phone.