Okayama
| Aida District, Okayama | 08687 |
| Akaiwa District, Okayama | 086 |
| Akaiwa District, Okayama | 08695 |
| Akaiwa District, Okayama | 08699 |
| Asakuchi District, Okayama | 086 |
| Asakuchi District, Okayama | 0865 |
| Asakuchi District, Okayama | 08654 |
| Asakuchi District, Okayama | 086542 |
| Asakuchi District, Okayama | 086554 |
| Atetsu District, Okayama | 0867 |
| Bizen, Okayama | 0869 |
| Ibara, Okayama | 0866 |
| Jobo District, Okayama | 0866 |
| Kasaoka, Okayama | 0865 |
| Katsuta District, Okayama | 0868 |
| Katsuta District, Okayama | 08687 |
| Kawakami District, Okayama | 0866 |
| Kibi District, Okayama | 086 |
| Kibi District, Okayama | 0866 |
| Kojima District, Okayama | 086 |
| Kojima District, Okayama | 08636 |
| Kume District, Okayama | 0867 |
| Kume District, Okayama | 0868 |
| Kume District, Okayama | 08687 |
| Kume District, Okayama | 08695 |
| Kurashiki, Okayama | 086 |
| Maniwa District, Okayama | 0867 |
| Mitsu District, Okayama | 0866 |
| Mitsu District, Okayama | 0867 |
| Niimi, Okayama | 0867 |
| Oda District, Okayama | 0866 |
| Okayama, Okayama | 086 |
| Okayama, Okayama | 08636 |
| Oku District, Okayama | 086 |
| Oku District, Okayama | 0869 |
| Oku District, Okayama | 08692 |
| Oku District, Okayama | 086926 |
| Shitsuki District, Okayama | 0866 |
| Soja, Okayama | 0866 |
| Takahashi, Okayama | 0866 |
| Tamano, Okayama | 086 |
| Tamano, Okayama | 0863 |
| Tomata District, Okayama | 0867 |
| Tomata District, Okayama | 0868 |
| Tsukubo District, Okayama | 086 |
| Tsukubo District, Okayama | 0866 |
| Tsuyama, Okayama | 0868 |
| Wake District, Okayama | 0869 |
| Wake District, Okayama | 08695 |
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