Who called from 6783999690

I keep getting phone calls from this number telling me I won a u.s. grant but yet the people barely speak English

unwanted calls

They say they are from Insurance Care Center. I say get lost.

Caller left no message and the call came from "Georgia"

I'm tired of these robo/spam/int'l telemarketers/FakeIRS and credit card thefts trying to call me. They call at least 9 times a day. Does an unlisted number help eliminate them? I reported on the FCC and they replied basically they can't help. Really annoying as you all know.