Registering a domain name and hosting one is sometimes mistaken by a lot of people to be one and the same thing. These are actually two separate services - the domain name registration is the actual name and nothing more, while the hosted domains feature refers to the amount of already registered domain names you can accommodate in the same website hosting account and have website files and e-mails for them. Your sites will function in exactly the same way no matter if 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 without hosting it will grant you ownership, but will not enable you to have a site until you host this domain address in some account so that records for it are set up and it starts opening the data from that account.