The hosted domains feature of a hosting account indicates the number of registered domain names which you could include within the exact same account. Registering a domain address and hosting it are 2 totally different services even though many people consider them to be the same thing. While the registration ensures that you become the owner of a specific domain address, the hosting aspect is what in fact enables you to have a website since this is where your data and emails are going to be. Since these are two independent services, it is possible to register a new domain address with one company and host it with another one by changing its name servers (DNS) - the domain will work in the exact same way as if it was registered and hosted using the same company. It's also extremely important to know that changing the hosting means directing the domain address to a different company and not transferring it.