Sorry for bumping an old post, but I'm wondering whether there's any network that you can get NAT type C from any of the UK networks or an eSIM? I'm doing some research into the "Support Codes" that Wii U and 3DS consoles output to be able to make a publicly available thread online to know what the numbers mean.
I'm going to try all my eSIMs when I get a chance, but does anyone know whether any networks that can consistently replicate type C? O2 lately seems to be doing consistently type D.
Our theories are that 110-xx support codes means type A, 120-xx means type B, 220-xx means type D. I'm assuming 210-xx would mean C, but we'd need to do the research to confirm.
Edit: Apparently type F is a thing too? I don't have a clue on how we're going to reproduce that.