.dd part of the Federal Republic of Germany, which had already been assigned the ccTLD .de. The ISO 3166-1 code "DD" was withdrawn in 1990. .dd .dd was the assigned country code top-level domain (ccTLD) for the German Democratic Republic (East Germany). It was chosen based on the ISO 3166-1 alpha-2 code for the German Democratic Republic, the letters coming from the German name of the country: '. In accordance with IANA policy, .dd was therefore available to be assigned as the country code top-level domain (ccTLD) for East Germany. However, this was never done, and so .dd was never added
Domain registration copied to Top Level Domain (TLD) servers around the world and creates the primary routing tables used by every computer that connects to the Internet. Each ICANN-accredited registrar must pay a fixed fee of US$4,000 plus a variable fee. The sum of variable registrar fees is intended to total US$3.8 million. The competition created by the shared registration system enables end users to choose from many registrars offering a range of related services at varying prices. Domain registration information is maintained by the domain name registries, which contract with domain registrars to provide registration services to the public. An end