As of May 2018, The Things Network Charlotte is in its infancy. I will be looking to grow it in the coming months. In the mean time, if you happen to stumble upon it, please reach out with questions, just to chat, thoughts, ideas, anything.
I do have a gateway setup. I'm in SE Charlotte (zip code 28270). I have to figure out why it's not currentlly showing up as part of the community. It may be because it's a little too far from the city center for TTN to recognize it as part of Charlotte.