"May register at second level or beneath generic 2nd-level categories at 3rd level" . ".cu" . . . "Entities connected with" . . . "Cuba-NIC" . . "1992-06-03" . . . . . ".cu" . . "Active" . "Limited to people and companies located in Cuba; 3rd-level registrations may have other limitations based on which 2nd-level domain they are within" . .