They call every day. I think it is the same guy. He always asks for my spouse, who isn't home. He won't leave a message and when I ask who is calling, he says it's just a courtesy call and will call again another time. I am going to just block this # from calling my home phone. I looked into this & I think it may be a scam trying to collect for Nevada State Troopers. I tried looking up NST, but there is only Nevada Highway Patrol. Seems very fishy.