Nagano
| Chiisagata District, Nagano | 0267 |
| Chiisagata District, Nagano | 0268 |
| Chino, Nagano | 0266 |
| Hanishina District, Nagano | 026 |
| Hanishina District, Nagano | 0268 |
| Higashichikuma District, Nagano | 0263 |
| Iida, Nagano | 0265 |
| Iiyama, Nagano | 0269 |
| Ina, Nagano | 0265 |
| Kamiina District, Nagano | 0265 |
| Kamiina District, Nagano | 0266 |
| Kamiminochi District, Nagano | 026 |
| Kamitakai District, Nagano | 026 |
| Kiso District, Nagano | 0264 |
| Kiso District, Nagano | 0573 |
| Kitaazumi District, Nagano | 0255 |
| Kitaazumi District, Nagano | 0261 |
| Kitasaku District, Nagano | 0267 |
| Kitasaku District, Nagano | 0268 |
| Komagane, Nagano | 0265 |
| Komoro, Nagano | 0267 |
| Koshoku, Nagano | 026 |
| Matsumoto, Nagano | 0263 |
| Minamiazumi District, Nagano | 0263 |
| Minamisaku District, Nagano | 0267 |
| Minamisaku District, Nagano | 0274 |
| Nagano, Nagano | 026 |
| Nagano, Nagano | 0268 |
| Nakano, Nagano | 0269 |
| Ōmachi, Nagano | 0261 |
| Okaya, Nagano | 0266 |
| Saku, Nagano | 0267 |
| Sarashina District, Nagano | 026 |
| Sarashina District, Nagano | 0268 |
| Shimoina District, Nagano | 0260 |
| Shimoina District, Nagano | 0265 |
| Shimominochi District, Nagano | 0257 |
| Shimominochi District, Nagano | 0269 |
| Shimotakai District, Nagano | 0269 |
| Shiojiri, Nagano | 0263 |
| Shiojiri, Nagano | 0266 |
| Suwa District, Nagano | 0266 |
| Suwa, Nagano | 0266 |
| Suzaka, Nagano | 026 |
| Ueda, Nagano | 0268 |
Read more about this topic: List Of Dialing Codes In Japan