The Area Codes of Japan:
| City/Town or Region | Area code | |
|---|---|---|
| 1. | Yamagata | 236 (+81 236) |
| 2. | Yamaguchi | 839 (+81 839) |
| 3. | Yokohama | 45 (+81 45) |
| 4. | Yokosuka | 468 (+81 468) |
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The Area Codes of Japan:
| City/Town or Region | Area code | |
|---|---|---|
| 1. | Yamagata | 236 (+81 236) |
| 2. | Yamaguchi | 839 (+81 839) |
| 3. | Yokohama | 45 (+81 45) |
| 4. | Yokosuka | 468 (+81 468) |