The hosted domains feature of a hosting account indicates the amount of registered domain names that one can include in the same account. Registering a domain name and hosting it are two different services although many people consider them to be the same thing. While the registration signifies that you become the owner of a given domain name, the hosting element is what in fact allows you to have a website since this is where your data and email messages are going to be. As these are two separate services, you'll be able to register a new domain address with one company and host it with another one by modifying its name servers (DNS) - the domain shall work in the exact same way just as if it was registered and hosted with the same company. Also, it is important to know that changing the hosting means pointing the domain address to an alternative company and not transferring it.