| Postal Code | 900320 |
| Postal Code Name | CET |
| Province | Constanța County |
| Municipality | Constanța |
| Timezone | Eastern European Summer Time (EEST) |
| Adjacent Postal Codes | 900032 900033 900034 900035 900036 900048 900049 900050 900058 900076 900140 900144 900145 900146 900147 900152 900153 900154 900316 900317 900319 900326 907105 907300 |