Postcode areas 30 - Hannover, Garbsen, Langenhagen, Laatzen
- Postcode area 30159 Hannover
- Postcode area 30161 Hannover
- Postcode area 30163 Hannover
- Postcode area 30165 Hannover
- Postcode area 30167 Hannover
- Postcode area 30169 Hannover
- Postcode area 30171 Hannover
- Postcode area 30173 Hannover
- Postcode area 30175 Hannover
- Postcode area 30177 Hannover
- Postcode area 30179 Hannover
- Postcode area 30419 Hannover
- Postcode area 30449 Hannover
- Postcode area 30451 Hannover
- Postcode area 30453 Hannover
- Postcode area 30455 Hannover
- Postcode area 30457 Hannover
- Postcode area 30459 Hannover
- Postcode area 30519 Hannover
- Postcode area 30521 Hannover
- Postcode area 30539 Hannover
- Postcode area 30559 Hannover
- Postcode area 30625 Hannover
- Postcode area 30627 Hannover
- Postcode area 30629 Hannover
- Postcode area 30655 Hannover
- Postcode area 30657 Hannover
- Postcode area 30659 Hannover
- Postcode area 30669 Langenhagen (Flughafen)
- Postcode area 30823 Garbsen
- Postcode area 30826 Garbsen
- Postcode area 30827 Garbsen
- Postcode area 30851 Langenhagen
- Postcode area 30853 Langenhagen
- Postcode area 30855 Langenhagen
- Postcode area 30880 Laatzen
- Postcode area 30890 Barsinghausen
- Postcode area 30900 Wedemark
- Postcode area 30916 Isernhagen
- Postcode area 30926 Seelze
- Postcode area 30938 Burgwedel
- Postcode area 30952 Ronnenberg
- Postcode area 30966 Hemmingen
- Postcode area 30974 Wennigsen (Deister)
- Postcode area 30982 Pattensen
- Postcode area 30989 Gehrden