NIC handle (Network Information Center handle)

A NIC (Network Information Center) handle is an alphanumeric character sequence that is unique for each entry in the database of all Internet domain name registrants. When a new domain name is registered, a NIC handle is assigned by the registrar to the information about that domain name (such as who has registered it and the e-mail address for a contact). Once the domain name is registered, either the domain name or the NIC handle can be used to search for that record in the database.

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The domain name database is administered by all the registrars under policies set forth by ICANN.