The hosted domains feature of a web hosting account indicates the amount of registered domain names which you could include within the same account. Registering a domain and hosting it are 2 totally different services although some people consider them to be the very same thing. While the registration ensures that you become the owner of a certain domain, the hosting aspect is what actually permits you to have a web site considering that this is where your data and email messages will be. Because these are 2 different services, it is possible to register a new domain name with one company and host it with another by modifying its name servers (DNS) - the domain shall 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 another company and not transferring it.