Notering byer (12 sted (er)). Velg byen for å se postnummeret (s):
| Oka (1) Okada (2) Okadanishimachi (1) Okamachi (1) Oki (1) Okinadome (1) | Okinazawa (1) Okino (1) Okinoda (1) Okinodaira (1) Okiura (1) Okuda (1) |
