Gunma
| Agatsuma District, Gunma | 0267 |
| Agatsuma District, Gunma | 0279 |
| Agatsuma District, Gunma | 0287 |
| Annaka, Gunma | 0267 |
| Fujioka, Gunma | 0274 |
| Gunma District, Gunma | 0267 |
| Isesaki, Gunma | 0270 |
| Kanra District, Gunma | 0267 |
| Kanra District, Gunma | 0274 |
| Kiryū, Gunma | 0277 |
| Kitagunma District, Gunma | 027 |
| Kitagunma District, Gunma | 0279 |
| Maebashi, Gunma | 027 |
| Nitta District, Gunma | 0276 |
| Nitta District, Gunma | 0277 |
| Nitta District, Gunma | 0485 |
| Numata, Gunma | 0278 |
| Ohta, Gunma | 0276 |
| Ohta, Gunma | 0284 |
| Ōra District, Gunma | 0276 |
| Sawa District, Gunma | 0270 |
| Seta District, Gunma | 027 |
| Seta District, Gunma | 0277 |
| Seta District, Gunma | 0279 |
| Shibukawa, Gunma | 0279 |
| Takasaki, Gunma | 027 |
| Tano District, Gunma | 027 |
| Tano District, Gunma | 0274 |
| Tatebayashi, Gunma | 0276 |
| Tomioka, Gunma | 0274 |
| Tone District, Gunma | 0278 |
| Usui District, Gunma | 0267 |
| Usui District, Gunma | 0273 |
| Yamada District, Gunma | 0277 |
Read more about this topic: List Of Dialing Codes In Japan