Re: [DNSOP] Tell me about the ISO 3166 user assigned two-letter codes and TLDs

David Conrad <> Thu, 29 September 2016 15:24 UTC

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Date: Thu, 29 Sep 2016 08:23:57 -0700
From: David Conrad <>
To: Mark Andrews <>, John Levine <>
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Subject: Re: [DNSOP] Tell me about the ISO 3166 user assigned two-letter codes and TLDs
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On September 28, 2016 at 5:08:05 PM, Mark Andrews ( wrote:
> 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? 

No. Just because countries don't get assigned these values it 
doesn't mean that they can't be assigned by ICANN or the IETF in 
consultation with ICANN. 
I believe from both the IETF's and ICANN's perspective, 2-letter labels at the root are reserved to be associated with ISO-3166 2-letter codes. I cannot imagine a plausible scenario in which this policy would change.

And who *needs* a fake tld? As far as I can tell almost no one. 
Can we PLEASE not repeat the arguments made against RFC 1918 space in the domain name world?