| Postal Code | 03-226 |
| Postal Code Name | Warsaw |
| Voivodeship | Masovian Voivodeship |
| County | Warsaw |
| Timezone | Central European Summer Time (CEST) |
| Adjacent Postal Codes | 03-202 03-204 03-207 03-209 03-215 03-228 03-236 03-238 03-243 03-244 03-249 03-251 03-252 03-254 03-274 03-276 03-286 03-287 03-289 03-290 03-378 03-396 03-397 05-270 |