country code

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Related to Country-code: ISO country code

country code

(networking, standard)
Originally, a two-letter abbreviation for a particular country (or geographical region), generally used as a top-level domain.

Originally country codes were just for countries; but country codes have been allocated for many areas (mostly islands) that aren't countries, such as Antarctica (aq), Christmas Island (cx) and Saint Pierre et Miquelon (pm).

Country codes are defined in ISO 3166 and are used as the top level domain for Internet hostnames in most countries but hardly ever in the USA (code "us"). ISO 3166 defines short and full english and french names, two- and three-letter codes and a three-digit code for each country.

There are also language codes.

Latest list.
This article is provided by FOLDOC - Free Online Dictionary of Computing (

country code

An Internet top-level domain assigned to a country. A country code is a two-letter suffix such as .us (United States), .ca (Canada) and .de (Germany). For a list of codes, see country codes A-E, country codes F-M and country codes N-Z. For a list of all top-level domains, see Internet domain name. The Pacific island nation of Tuvalu found a unique way to profit from its country code (see .tv).

Computers read Internet addresses from right to left. Thus, on encountering, the message would first be sent to Sweden, since .se is the country code for Sweden. Swedish routers would then send the message to where it will be waiting for Sven the next time he signs on.

Country Codes in Search Engines
Google and Yahoo! have language selection boxes for narrowing searches to particular countries; however, other search engines let you specify the country code. For example, to find websites in France about wine using the AltaVista search engine (, one could type +wine +domain:fr. To do the same in Go (, one would type +wine +site:fr.
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References in periodicals archive ?
The country-code TLD with the highest number of registered domains is Tokelau, a group of atolls in the southern Pacific Ocean midway between Samoa and Hawaii.
China, Germany, the United Kingdom and Russia were the next four biggest country-code TLDs.
Among the newly added extensions is .DK, the official country-code domain of Denmark.
According to the companies, the servers concerned will hold the master lists of .com and .net domains, which VeriSign manages, as well as all the other generic and country-code top-level domains, mirroring servers it runs in Virginia.
Elisabeth Porteneuve, a consultant who helps run France's '.fr' country code, said country-code managers should get six seats on the board, with three seats going to at-large members.
The US Department of Commerce has established an email discussion list to chew over issues related to the development of the .us country-code domain.
It owns idNames, which registers country-code domains representing more than 150 countries around the world, including .uk, .fr and .de.
It has registered second-level addresses in top-level domains such as .to (the country-code for Tonga), .at (Austria) and then constructs phrases out of the top and second-level domains, such as or - with the customer 'registering' the word after the slash.
A sub-plot to the current domain name systems dispute will be played out in Washington DC today at a public meeting to debate the future of the .us country-code top-level domain.
PSINet Chairman, president and CEO William Schrader, who has attended some of the meetings over the past few years that have led to ICANN's existence in one way or another, noted that PSINet has been "certainly heavily involved" in the process and also pointed out that through its acquisition of Tokyo Internet last October, PSINet now houses the Network Information Center (NIC) for the .jp country-code domain.
The ICANN board also said it will ensure international representation on the permanent board, a conflict of interest policy will be created covering all aspects of ICANN and that it "will respect each nation's sovereign control over its individual top level domain." This raised a few eyebrows because most of the major country-code domains, such as .us, .uk and .de are not run by government organizations, but by private sector bodies.