Forgot I had this:
% host -lva f.e.e.b.d.a.e.d.1.3.0.0.8.9.8.0.2.0.a.2.ip6.arpa nlns.globnix.net
Sorry Jake, should have mentioned it before. That too is public DNS, it's just that it's only in IPv6 that I have enough public IPs spare to dedicate a dead:beef range to test purposes. ;)