According to Article 3 of Royal Decree 1671/2009, of November 6th, partially regulating Law 11/2007, of June 22nd, on Citizens’ Electronic Access to Public Services, all access channels for the services available at an electronic office must be identified, also specifying their phone numbers and addresses.
These are the access channels for the services available in this electronic office:
1st Electronic access: Internet, electronic office of the Public Administrations, reference URL: https://sede.administracionespublicas.gob.es/
2nd The registers in Article 38 of Law 30/1992, of November 26th, on the Legal Regime of Public Administration and Common Administrative Procedures
3rd By phone: Department Information Service, (+34) 91 273 90 00.