A domain name registrar is an
organisation that holds the central records (database) for all the domains they administer. They are often government owned or sponsored.The central registrar for .com, .net and .org domain names is Network Solutions (used
to be InterNic).
The central registry for .co.uk, .org.uk, .me.uk, .ltd.uk, .plc.uk and .net.uk domain names is Nominet.
The central registry for .gov.uk and .ac.uk domain names is UKERNA.
The
central registry for .uk.com / .uk.net / .gb.com / .eu.com / .gb.net / .us.com / .de.com is CentralNic.
Although it is sometimes possible to register your name direct with the central registry you will find that domain
registrars do not usually provide the other "required" services you need to go with your domain name. They normally deal with maintaining the central domain name database ONLY and you need an ISP to provide these other services
(DNS setup / service) - see