Hello, yes, that is well known - there could in theory be a ".aa" gTLD for American Airlines (aa.com) as that is one of the codes that is "public domain" (much like the IP address space 192.168.X.X). But please let's not open YET ANOTHER can of worms by introducing a discussion whether .aa or .zz shouldn't be made available. I think we should develop an understanding that the ENTIRE 2 letter name space is forbidden fruits for everyone with an appetite in gTLDs. Any other opinion? Thanks, Alexander Schubert -----Original Message----- From: ctn-crosscom-bounces@icann.org [mailto:ctn-crosscom-bounces@icann.org] On Behalf Of Jaap Akkerhuis Sent: Monday, July 04, 2016 6:08 PM To: ctn-crosscom@icann.org Subject: [Ctn-crosscom] ISO alpha-2 & alpha-3 codes All, A word of caution. In the discussion about ISO codes people mention alpha-2 and alpha-3 codes. Note that this only means the form of the code element, it doesn't says a lot about the type of the code. For alpha-2 codes there are the (1) Official Assigned and (2) Reserved codes. There are different types of reservation possible but the most important to note is that "While a code is reserved it will not be used in the standard to represent a country". In general, only official assigned codes are used for ccTLDs (although there are exceptions). The Glossary on the ISO site <http://www.iso.org/iso/country_codes_glossary.html> gives more details about the definitions of the types. And of course the standard itself. It is possible to find out which the various reserved alpha-2 codes are via the Online Browsing Platform (OBP) ISO <https://www.iso.org/obp/ui/#home> but the list of reserved alpha-3 codes is as far as I know not publicly available. Regards, jaap _______________________________________________ Ctn-crosscom mailing list Ctn-crosscom@icann.org https://mm.icann.org/mailman/listinfo/ctn-crosscom