23999 is the Postal Code/PLZ Code for Insel Poel in the Germany State of Mecklenburg-Vorpommern and the District of Landkreis Nordwestmecklenburg.
| Postal Code | 23999 |
| Postal Code Name | Insel Poel |
| State | Mecklenburg-Vorpommern |
| District | Landkreis Nordwestmecklenburg |
| Timezone | Central European Summer Time (CEST) |
| Adjacent Postal Codes |