Official Rules for Generic Top Level Domains (gTLD) as published by iana.org Root-Zone Whois Total there are more than 200 ccTLDs, all have a 2-letter code by ISO 3166
Specials: * United Kingdom has two ccTLDs
.uk +
.gb * Åland as autonome province of Finland has now an own ccTLD since March 2006:
.ax * Antarctica has ccTLD
.aq althought it is no state
* Ascension has an own ccTLD
.ac, althought it is not on the ISO-List, but belongs to St. Helena (
.sh)
* The
Palestinensian Autonome Region has
.ps as own ccTLD, althought it belongs fomal to Israel
Changes: * .cs was
Czecheslovakia in history, then registered for
Serbia and Montenegro, but never in use, because now
Montenegro is independent and is now
.ME while
Serbia now is
.RS * .zr for Zaire got deleted from Root Servers 2004 and has now
.cd Historicals: * Former
German Democratic Republic (DDR) had ccTLD
.dd but never got it active
* Former
Yugoslavia had ccTLD
.yu which is still in use
* Former
Sovjet Union (UdSSR) had
.su which is still in use and in sales