George Michaelson via db-wg <db-wg@ripe.net> wrote:
As a point of information, APNIC uses cc "ZZ" specifically for unallocated and "stub" (outward transferred) records.
ZZ is an ISO3166 assigned code for "unknown"
Which reminds me of some of the more horrible code I have shipped. FreeBSD's whois client tries to know as little as possible about which whois server it needs to ask for which query, and instead starts from IANA and follows referrals. This works surprisingly well given that there isn't a standard for whois referrals and there are at least 5 referral formats out there. The main point where this strategy fails is for IP address queries, because RIPE and APNIC only say "dunno" rather than providing a referral. This is kind of annoying since I believe they have the necessary information and expose it via RDAP, but omit it via whois. So the whois client guesses that ARIN might be more helpful and in horrible cases might try all the RIRs in turn. Yuck. https://svnweb.freebsd.org/base/head/usr.bin/whois/whois.c?revision=326025&view=markup#l124 Tony. -- f.anthony.n.finch <dot@dotat.at> http://dotat.at/ Channel Islands: West to southwest 5 to 6, increasing locally 7 at times. Rather rough to rough, locally moderate in the far southeast. Isolated showers, becoming more frequent and locally heavy overnight, with isolated thunderstorms developing by tomorrow morning. Good, occasionally moderate, but poor in heavy showers.