ISO codes

 Here are the ISO 3166-1 numeric codes for some European countries:

1. Germany: Numeric code 276
2. France: Numeric code 250
3. United Kingdom: Numeric code 826
4. Italy: Numeric code 380
5. Spain: Numeric code 724
6. Greece: Numeric code 300
7. Sweden: Numeric code 752
8. Netherlands: Numeric code 528
9. Austria: Numeric code 040
10. Switzerland: Numeric code 756

1. Germany: ISO 3166-1 alpha-2 code: DE
2. France: ISO 3166-1 alpha-2 code: FR
3. United Kingdom: ISO 3166-1 alpha-2 code: GB
4. Italy: ISO 3166-1 alpha-2 code: IT
5. Spain: ISO 3166-1 alpha-2 code: ES
6. Greece: ISO 3166-1 alpha-2 code: GR
7. Sweden: ISO 3166-1 alpha-2 code: SE
8. Netherlands: ISO 3166-1 alpha-2 code: NL
9. Austria: ISO 3166-1 alpha-2 code: AT
10. Switzerland: ISO 3166-1 alpha-2 code: CH