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Country code top-level domain. A country code top-level domain (ccTLD) is an Internet top-level domain generally used or reserved for a country, sovereign state, or dependent territory identified with a country code. All ASCII ccTLD identifiers are two letters long, and all two-letter top-level domains are ccTLDs.
Appearance. This list of Internet top-level domains (TLD) contains top-level domains, which are those domains in the DNS root zone of the Domain Name System of the Internet. A list of the top-level domains by the Internet Assigned Numbers Authority (IANA) is maintained at the Root Zone Database. [ 1 ] IANA also oversees the approval process for ...
nic.cz. .cz is the country code top-level domain (ccTLD) for the Czech Republic. It is administered by CZ.NIC. Registrations must be ordered via accredited domain name registrars. Until Czechoslovakia was dissolved in 1993, it used the domain .cs. The maximum domain name length permitted is 63 characters, which may only be alphanumeric or the ...
CZ.NIC is a Czech interest association of legal persons established by leading Internet service providers in 1998. The main activity of the association is administration of domain names .cz and 0.2.4.e164.arpa (), administration of .cz top-level domains and education in the area of domain names.
List of FIPS country codes. This is a list of FIPS 10-4 country codes for Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions. The two-letter country codes were used by the US government for geographical data processing in many publications, such as the CIA World Factbook.
This is a list of countries by IPv4 address allocation, as of 2 April 2012. It includes 252 areas, including all United Nations member states, plus the Holy See, Kosovo and Taiwan. There are 2 32 (over four billion) IP addresses in the IPv4 protocol. Of these, almost 600 million are reserved and cannot be used for public routing.
Registration of a domain name establishes a set of Start of Authority (SOA) records in the DNS servers of the parent domain, indicating the IP address (or domain name) of DNS servers that are authoritative for the domain. This provides merely a reference for how to find the domain data – not the actual domain data.
ISO 3166-1 alpha-2 codes are two-letter country codes defined in ISO 3166-1, part of the ISO 3166 standard [1] published by the International Organization for Standardization (ISO), to represent countries, dependent territories, and special areas of geographical interest. They are the most widely used of the country codes published by ISO (the ...