Who called from 4085027513

Received a phone call from this company purportedly offering $100 reward. This is a company that I have not done business with.

Its ILLEGAL to ask for money to receive it.
Prize Offers: You Don’t Have to Pay to Play!
http://www.ftc.gov/bcp/edu/pubs/consumer/telemarketing/tel17.shtm
http://www.consumer.ftc.gov/scam-alerts
http://www.consumer.ftc.gov/articles/0076-telemarketing-scams

I too received a call from this number at 7:30pm. I did not answer it.

Is anybody taking care of these unwanted/suspicious calls?

Same as above - offering reward.  I get this call multiple times per week and no longer answer.  I asked my phone to block future calls.