Registry
From ICANNWiki
A Registry is the database of all domain names registered under a certain TLD. A registry operator, also called a NIC or network information center, is the person(s) or entity(ies) responsible for providing registry services. Registry services include customer database administration, zone file publication, DNS operation, marketing and policy determination. A Registry may outsource some, all, or none of these services. Different registries exist for each TLD.
