I don't think this has anything to do with RFC 6761, so ... For a very long time, two letter TLDs have been assigned to countries and other geographic entities per the ISO 3166 alpha-2 list. The earliest mention I can find is in RFC 920 in 1984, and even then the wording suggests that the usage was well settled.
The codes AA, QM-QZ, XA-XZ, and ZZ are "user assigned" and will never be used for countries. Last year Ed Lewis wrote an I-D proposing that XA-XZ be made private use and the rest future use, but as far as I can tell it never went anywhere. I've been telling people that if they need a fake private TLD for their local network they should use one of those since it is exceedingly unlikely ever to collide with a real DNS name. Am I right? R's, John PS: On my lan, I'm using .QY. _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
