We can host any valid domain extension as long as the domain registrar allows you to change the DNS.
Some registries, Finnish, for example, require a DNS zone for a certain domain to be present on the nameservers the domain name is being switched to. So it's not possible to add such a domain as an add-on to your cPanel account in a standard way. That's because DNS records are created only when a domain is being added as an add-on, but cPanel does not allow adding a domain unless it's pointed to a nameserver.
cloud1.listedhosting.net
cloud2.listedhosting.net LISTEDHOSTING NAMESERVERS
cloud3.listedhosting.net
cloud4.listedhosting.net
You can buy any desired domain name from ListedHosting, such as .COM .NET .COM.NG .NG .ORG etc.
You can read about domains from our blog post here