During my most recent work trip the TSA was not checking phones and was not making the Note 7 announcements. That might have changed. The airline crew was making the Note 7 announcements as we were boarding the plane, once on the plane and during the pre take off safety brief. I'm sitting in my seat, listen to the brief, then put in my headphones and start some music. The stewardess says "Sir, what kind of Samsung is that?". I say "it's a Motorola Droid Turbo 2, not a Samsung." Puzzled look, then "So it's not a Samsung Note?" I wanted to be a wise guy, but just said No Ma'am.
If you have a Note 4 you are fine and there are no restrictions that I am aware of. If anyone asks, big IF, just tell them what phone model it is and you should be fine.
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