These derive from ISO-3166, e.g., see http://www.din.de/gremien/nas/nabd/iso3166ma/codlstp1/en_listp1.html There's not a perfect mapping between those Alpha-2 code elements and Internet ccTLDs, but it's at least 90% correct. Andy On Wed, 22 Nov 2000, Carl Wilhelm Soderstrom wrote: > > Any idea what the ch top-level domain is? > > Switzerland. 'Confederation Helvetica' (I think). hence the 'CH' country > stickers on Swiss cars in Europe. > > Carl Soderstrom. >