Who called from 4084042210

Called and when I answered, they hung up.  No message left either.  Called Id says San Jose, CA

CNTRL CONCRETE showed up on my call blocker's screen.  I've blocked are codes, and this is on of the many in 408 that is spoofed to Gilroy/Los Gatos/Morgan Hill area, so I've blocked also this AC.  I separately define numbers that can pass through the blocker to my phone.  The Blocker is busy, but my phone isn't.

Keeps calling and does not leave a message...It is a San Jose number but does not answer when I picked up..must be a scam

Block this one!  This is part of a dope addict group trying to scam old people with a construction pitch.  San Quentin State Prison awaits!!

caller ID is just a string of numbers. I screen all calls, now, but this one will definately be blocked, thanks to other's comments!