Who called from 4070007836

Same as Don, they left no voice mail.

Same here, no msg left. any ideas?

also just had a call and no message from this number just a few minutes ago

Received call, no vm as well.

This is a debt relief call, asking if you'd like the best new interest rate on your credit cards. If you stay on the line and talk to a human, and ask to be taken off the list (as I did, since it was calling a business line), they will just hang up on you. This is certainly a scam.