Notering byer (14 sted (er)). Velg byen for å se postnummeret (s):
| Ogens (1) Oleyres (1) Ollon VD (1) Onnens VD (1) Oppens (1) Orbe (1) Orges (1) | Orient (1) Orny (1) Oron-la-Ville (1) Oron-le-Châtel (1) Orzens (1) Oulens-sous-Echallens (1) Oulens-sur-Lucens (1) |
