The Internet resolves addresses uses a system of Internet Protocol numbers assigned to connected computers. For convenience, these IP numbers can be mapped to easy-to-remember names called domain names."
The coordination of domain names and IP numbers is, at the highest level, the responsibility of the Internet Corporation for Assigned Names and Numbers, or ICANN.
ICANN coordinates the system for converting domain names into IP addresses known as the Domain Name System (DNS).
IP and AS
ICANN also coordinates the Internet Protocol (IP) address systems and the Autonomous System (AS) numbers.
Registrars and Registries
ICANN contracts with and accredits registrars permitted to sell domain names within a top level domain, which is managed by a separate company called a registry.
ICANN's role is to oversee the network of internet identifiers and ensure that the Internet has "universal resolvability"--in other words, that it operates the same in all places.
How to Register a Domain Name With ICANN
ICANN stands for "Internet Corporation for Assigned Names and Numbers" and, as the name would suggest, this is the company responsible for...