I do not answer calls from callers I do not recognize, so I let this go to the answering machine.
They did not leave a message so I am blocking this number.
I am on the do not call list but that only works for legitimate businesses, so this is most likely a SCAM.
I get calls nightly from this number, I never pick up. Finally, I did to tell them to remove my name from their caller list. An automated recording asked me to "Press 1 if I want to save on my Eversource bill" I pressed 1 an immediately got a human, I asked if he worked for Eversource (my electricity company) and he hung up. I tried to call back, but got a recording the number doesn't exist.