This and other numbers may come through as calls from the US, but they may also be masquerading as US numbers via an Indian phone bank:
http://stdcode.bizwise.in/trace/2762/30/
Do a search find for 2762497821 on the page, and you'll see 3 versions of the basic number across the page. Is this a tool for robo trolling for "live" or "active" numbers which are then sold? May be why you get a message: "Your call cannot be completed as dialed". I never leave my name on any voice message for incoming calls.
Just don't answer the calls. They are a ploy for some car insurance scam. These people have little understanding of English. I have told them over seven times that I do not even own a car and I still keep getting these calls.