Got a call from above number. No voicemail left.

I think it's the same co that calls ALL DAY LONG. Doesn't leave a message,

Some kind of scam. Asked questions about my electric bill and started rambling statistics off. I hung up

CID:  Out of Area.  Number:  408-290-6920.  Scammer called me twice in the same minute because my phone's call blocker blocked them.  Because that number didn't work, they called me from 408-290-6958 (a new spoofed 408-290-69xx number) to get my attention of which I picked up the phone and I hung up the phone in the same moment which simulates a blocked call.  I read that CPR Call Blocker will block all iterations of the same number as in this case where this scammer uses 408-290-69xx; hence, all iterations of xx starting from 00 up to 99 will be blocked for this phone number sequence.  I haven't gotten this call blocker, but it might be worth investigating further.

pieces of crap out of Campbell, CA.  blocked the number ending in 40, so they used 20.