By default, your account comes with Standard DNS, a basic version of the DNS Manager. You can, however, upgrade to Premium DNS. Through advanced features, Premium DNS adds power, flexibility, and a higher level of technical support to your DNS management.
For more information, see Premium DNS FAQ
The nameservers you must use are in the following ranges:
Nameservers use consecutive odd and even pairs, so PDNS01.DOMAINCONTROL.COM works with PDNS02.DOMAINCONTROL.COM, whereas PDNS12.DOMAINCONTROL.COM would not work with PDNS13.DOMAINCONTROL.COM.
It might take up to 90 minutes before you can manage your Premium DNS.