Registering a domain and hosting one is often mistaken by many people to be the same thing. They are actually two different services - the domain address registration is the actual name and nothing more, while the hosted domains feature reveals the number of already registered domain addresses you can accommodate within the same hosting account and have site data and e-mails for them. Your websites will function in precisely the same way no matter whether the domain names are registered and hosted in one place or are registered with company A and pointed to company B. Simply registering a domain without hosting it will grant you ownership, but will not enable you to have a site unless you host this domain in some account so that records for it are created and it starts opening the content from that account.