WHOIS isn't an acronym, though it may look like one. In fact, it is the system that asks the question, who is responsible for a domain name or an IP address?
[Thumbnail via Flickr user
Andrew Eason cc]
ICANN is a not-for-profit public-benefit corporation with participants from all over the world dedicated to keeping the Internet secure, stable and interoperable. It promotes competition and develops policy on the Internet's unique identifiers. Through its coordination role of the Internet's naming system, it does have an important impact on the expansion and evolution of the Internet.