ICANN Explained - What is ICANN? What is ICANN's role? All This & More at Ballistic Domains
What is ICANN?
Domain Registration Article Details
Register any domain on the internet using your favorite domain name registrar and one way or another you will be using the services of ICANN and paying a small fee as part of that domain registration process to ICANN via your registrar.
ICANN is a non profit corporation founded in the US in 1998 that stands for 'Internet Corporation for Assigned Names and Numbers'. ICANNs main tasks include the management and oversight of the domain name registration process and the assignment of Internet Protocol (IP) addresses to Internet Service Providers (ISPs) through its Internet Assigned Numbers Authority (IANA) group. IANA was founded by Jon Postel (contributer to the US Dept of Defence ARPANET, the original global internet created during the cold war) and is headquarted at University of the Southern California.
All devices connected to a network using the Internet Protocol need to have an unique IP address or numeric 'tag', for it to be identified on that network and allow data to pass from one source location to another destination location, and it was up to ICANN to allocate who should use what blocks of IP Addresses to make the whole thing work. Due to there being a lot of PRIVATE networks within homes, organizations or companies ICANN determined that a number of ranges of IP addresses could be resused within each separate private network so as not to quickly exhaust the availability of the pool of IP addresses that ICANN could allocate. ICANN therefore designated the IP address ranges below for reuse in these private networks;
10.0.0.0 - 10.255.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.255.255
ICANN reserved all other IP address ranges for PUBLIC network use over what we call the global internet that we see today that exists between different Internet Service Providers (ISP's) around the world.
The other more well know task that ICANN performs is the assignment of domain names. ICANN authorizes the use of all top level domain names such as .com, .org. .net, as well as country code based domains (like .co.uk, .co.nz). Actual domain name assignments though are carried out by ICANN authorized domain name registrars and you cannot directly register a domain name with ICANN.
Another significant role ICANN played in the development of the modern internet is the creation of the UDRP or 'Uniform Dispute Resolution Policy' that governs resolution of conflicts concerning domain name ownership. ICANN wanted an inexpensive, fair, and fast resolution system that bypassed the legal court system for disputed domain names and thus UDRP was born with the help of the 'World Intellectual Property Organization'. If you wish to regsiter a domain name via a domain regristrar, ICANN forces you to agree to use the UDRP process for potential domain name conflict resolution and no other process, otherwise you will not be able to register your domain.