ccTLD's represent the TLD's used by Countries in the world, they account for about 250 of the 260 TLD's. Some examples of ccTLDs are '.uk' for the United Kingdom, and '.au' for Australia. A list of ccTLD's can be found at http://www.iana.org/cctld/cctld-whois.htm.
Each country has a unique domain extension, usually a two letter abbreviation for the country. e.g. .UK.
Every country has been given a unique country code based on its UN abbreviation. Some examples of Country Code Top Level domains include: .CC, .JP, .CA, and .UK as opposed to Generic top level domains like .COM, .NET and .ORG, Country-level domains may have specific restrictions set by the country of origin. These restrictions may include having a Tax ID number in the associated country, or having a business presence.
A generally two-letter top domain that stands for a specific country. Examples include .fr for France, .de for Germany, .br for Brazil and so on. Most ccTLDs are controlled by an authority in the relevant country, though the rights to a few ccTLDs have been sold to private parties. One well-known case is the ".tv" ccTLD, which is operated by Dot.TV - the ".tv" designation originally stood for "Tuvalu" but that country ceded all rights over the .tv designation for at least 10 years, in exchange for a large sum of money. Different ccTLDs come with different regulations as to minimum name length, right of ownership (anyone; only residents of the relevant country; only registered companies in that country, etc.) Some ccTLDs have additional restrictions placed upon them, such as a no-resale clause.
A top-level domain containing a 2-character abbreviation as defined by ISO 3166-1 (Codes for the Representation of Names of Countries and Their Subdivisions). As of November 1999 there were 243 country code top level domains (ccTLDs) registered. Some examples are .us for the United States, .ca for Canada, .jp for Japan, .de for Germany, etc. ccTLDs are often contrasted to generic top level domains (gTLDs). ccTLDs often have more restrictive registration requirements including regional requirements whereas gTLDs tend to be open to all registrants around the world.
Each country has a unique domain extension, usually a two letter abbreviation for the country. IANA is the organization responsible for overseeing the ccTLDs.
A top level domain contain a unique domain extension, usually a two characters abbreviation for the country .
