I just got one.  Caller ID showed "Unavailable."  I did not pick-up.

Brand new phone number unlisted only 1 week old and haven't given it out because I can't even remember it but yet I get phone calls from these people asking if I want to save on my electric bill. Wtf! How do these foreigners get this info from. I think your phone company sells your information to these no good creeps. Don't answer this call its spam. Or answer and yell at them like i do. It's good therapy when I have a stressful day at work lol

Ive been getting calls. I don't answer though.

I do not answer  when i see  a calls that says unavilable.And i do receive calls from this  number  daily.

I've been getting them all day.  I answered one and it was a woman with a breaking up cell phone, who wanted to speak to the person in charge of the electric bill.  I said "I'm not interested in switching thank you" and hung up.  She has been calling back every hour since.  I haven't answered again.  I'm getting REALLY pissed off at these "let us switch your electric provider" people.