A designation of the European Union (country code EM) covers all the countries that are Member States of the European Union. The following countries are members to the European Union:

 

  1. Austria (AT)
  2. Benelux (consisting of Belgium, Luxembourg and the Netherlands) (BX)
  3. Bulgaria (BG)
  4. Croatia
  5. Cyprus (CY)
  6. Czech Republic (CZ)
  7. Denmark (DK)
  8. Estonia (EE)
  9. Germany (DE)
  10. Spain (ES)
  11. Finland (FI)
  12. France (FR)
  13. United Kingdom (GB)
  14. Greece (GR)
  15. Hungary (HU)
  16. Ireland (IE)
  17. Italy (IT)
  18.  Lithuania (LT)
  19.  Latvia (LV)
  20. Malta (MT)
  21. Poland (PL)
  22. Portugal (PT)
  23. Romania (RO)
  24. Sweden (SE)
  25. Slovenia (SI)
  26. Slovakia (SK)

An updated list can be found here: https://europa.eu/european-union/about-eu/countries_en