The Internet solves addresses uses a system of IP numbers allocated to connect PCs. these IP numbers can be tracked to easy-to-remember names termed domain names."

ICANN

The synchronization of domain names and IP numbers is, at the highest level, the accountability of the Internet Corporation for allocated Names and Numbers, or ICANN.

DNS

ICANN synchronizes the system for transforming domain names into IP addresses termed as the Domain Name System.

IP and AS

ICANN even synchronizes the IP address systems and the Autonomous System numbers.

Registrars and Registries

ICANN bonds with and accredits registrars allowed to sell domain names inside a top level domain, which is maintained by a separate company known as registry.

Role

ICANN's role is to manage the network of internet recognizers and make sure that the Internet has "universal resolvability".