To all the armchair domain admins commenting here: It's a single-letter domain in one of the traditional non-country TLDs. It only exists because it was grandfathered in in 1993 [1] I'm pretty sure no one here ever dealed with such a situation ever. If you try to change anything in its registration without supplying it in a legally watertight package delivered by lawyers nothing at all happens, not even extending the registration as the non-owner. Just check the whois entry and look up the various ICANN domain status codes.
1: https://en.wikipedia.org/wiki/Single-letter_second-level_dom...