| CZE = Czech Republic | |
| # Level 1 (admin 1 = e.g., state) | |
| CZ-ZD = Zapadocesky Kraj | |
| CZ-JM = Jihomoravsky Kraj | |
| CZ-ST = Stredolslovensky Kraj | |
| CZ-BR = Bratislava | |
| CZ-SR = Stredocesky Kraj | |
| CZ-ZA = Zapadoslovensky Kraj | |
| CZ-YC = Ychodoslovenski Kraj | |
| CZ-JC = Jihocesky Kraj | |
| CZ-SE = Severocesky Kraj | |
| CZ-VY = Vychodocesky Kraj | |
| CZ-PR = Praha | |
| CZ-SV = Severomoravsky Kraj |