IANA Definition

The Internet Assigned Numbers Authority (IANA) is the organization that was originally responsible for managing the unique values that are necessary for the functioning of the Internet, including IP addresses, domain names, port numbers, character sets and MIME (multipurpose Internet mail extensions) media access types.

IANA was founded by the late Jon Postel (1943-1998), and it consisted of basically just Postel alone for a number of years. Sometimes called the father of the Internet, Postel was involved in the development of the ARPANET, the precursor to the Internet, at the University of California at Los Angeles (UCLA). He established IANA after he relocated to the nearby University of Southern California (USC), where that organization remains today.

IANA is now under the control of ICANN (Internet Corporation for Assigned Names and Numbers), which was established in 1998, also by Postel.

IANA's web site is located at

Created November 29, 2005.
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