Who called from 5083421630

Caller ID says "Attleboro  MA".  They leave no message.

I call back after hours (using *67 to block my number).  Their outgoing message is about two minutes of silence.  Then it hangs up on me.

So they have a spoofed caller ID with a "message" that doesn't identify themselves.  This smells like a SCAM.

recd a call from this number.  Dead air.

They want to sell me electricity. I thought robo-calls were made illegal.

Same as above.  They're on a tear.

Just received a call from this number on my home phone - no message was left.