Registering a domain and hosting one is commonly mistaken by a lot of people to be one and the same thing. They are in fact 2 separate services - the domain name registration is the actual name and nothing else, while the hosted domains feature refers to the number of already registered domain addresses you can accommodate in the same website hosting account and have website data and email messages 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 directed to company B. Simply registering a domain address without hosting it will grant you ownership, but will not allow you to have a web site until you host this domain name in some account so that records for it are set up and it starts opening the data from that account.