The geo-domain for Spain
.es Domain Names
.ES is a ccTLD for the country of Spain. While the TLD is open for anyone to use, the Spanish government requires that registrants submit a valid form of identification before the domain can be registered.
Anyone who wants to register a .ES domain must submit a Registrant ID Type and Registrant ID Number. Valid Registrant ID types include a VAT ID or Resident alien ID, or another form of generic identification (this could be a passport, drivers license, etc.) The Registrant ID number is the number associated with whatever form of identification you choose to submit.