Registering a domain name and hosting one is often mistaken by many people to be the same thing. They are actually 2 different services - the domain address registration is the actual name and nothing else, while the hosted domains feature shows the amount of already registered domain addresses that one could accommodate in the same web hosting account and have site data and email messages for them. Your sites will function in exactly the same way no matter whether the domain addresses are registered and hosted at the same place or are registered with company A and directed to company B. Simply registering a domain name without hosting it will give you ownership, but will not enable you to have a website if you don't host this domain address in some account so that records for it are set up and it starts opening the content from that account.