Profile
| Postal Code | 400021 |
| Postal Code Name | Centru |
| Province | Cluj County |
| Municipality | Cluj-Napoca |
| Timezone | Eastern European Summer Time (EEST) |
| Adjacent Postal Codes | 400018 400019 400020 400022 400023 400112 |
| Postal Code | 400021 |
| Postal Code Name | Centru |
| Province | Cluj County |
| Municipality | Cluj-Napoca |
| Timezone | Eastern European Summer Time (EEST) |
| Adjacent Postal Codes | 400018 400019 400020 400022 400023 400112 |