This is where ICANN fits in . . . ICANN is responsible for managing and coordinating the DNS to ensure universal resolvability.
ICANN is the global, non-profit, private-sector coordinating body acting in the public interest. ICANN ensures that the DNS continues to function effectively - by overseeing the distribution of unique numeric IP addresses and domain names. Among its other responsibilities, ICANN oversees the processes and systems that ensure that each domain name maps to the correct IP address.
