Those will be South Carolina, New York, California, and Illinois.
Then there is New Jersey. Though there is no distinction in the law between open and concealed carry, it is almost impossible for the unconnected to obtain a permit. The effect is the same as a ban.
There are a couple of others in the same boat. Hawaii and Maryland, for example.
But it is a legal difference. When we get national reciprocity, activists can go into NJ and show them violating the law.
With a little luck, it will result in big settlements for our side.