.co is the Internet country code top-level domain (ccTLD) for Colombia. It is administered by Los Andes University.

"co" is also frequently used as a second-level domain within other country-code domains, in which registrants (usually companies) may register second-level domains of the form .co.xx, where xx is the ccTLD. Israel (, United Kingdom (, New Zealand (, Japan (, South Korea ( and Cook Islands ( are examples. Some other country codes use "com" instead, such as Australia (, Mexico ( and Taiwan (; this includes Colombia itself, which uses

Around the year 2000 when many country-code domains were being remarketed as worldwide generic domains, there was some talk of allowing second-level registrations in .co for registrants worldwide in order to capitalize on the similarity of this name to .com and to the above-noted use of "co" as a second-level domain in other country codes. However, a Court order prohibited Andes University from doing so, and registration remains limited to third-level domains and to Colombian registrants.

Second-level domains

The second-level domain structure rather closely mirrors the "traditional IANA" .com / .net / .org / .gov / .edu / .mil hierarchy, with the addition of a national equivalent of .name

  • - commercial
  • - organizations
  • - educational
  • - government
  • - network infrastructure
  • - military
  • - private person

External links

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