| Regulation | Example | |||||||
|---|---|---|---|---|---|---|---|---|
| Block | Category | Sub Category | Applicant | Region | Mode | Band | Remarks | |
| 7J$$ | Ship Station | with Signal Code | CW | 7J$$: same to Signal Code | ||||
| 7J1AAA- 7J1DZZ  | 
      Amateur Station | Kanto | ||||||
| 7J1YAA- 7J1YMZ  | 
      ||||||||
| 7J2AAA- 7J2CZZ  | 
      Tokai | |||||||
| 7J2YAA- 7J2YMZ  | 
      ||||||||
| 7J3AAA- 7J3CZZ  | 
      Kinki | |||||||
| 7J3YAA- 7J3YMZ  | 
      ||||||||
| 7J4AAA- 7J4BZZ  | 
      Chugoku | |||||||
| 7J4YAA- 7J4YMZ  | 
      ||||||||
| 7J5AAA- 7J5BZZ  | 
      Shikoku | |||||||
| 7J5YAA- 7J5YMZ  | 
      ||||||||
| 7J6AAA- 7J6BZZ  | 
      Kyushu | |||||||
| 7J6YAA- 7J6YMZ  | 
      ||||||||
| 7J6CAA- 7J6CZZ  | 
      Okinawa | |||||||
| 7J6YNA- 7J6YQZ  | 
      ||||||||
| 7J7AAA- 7J7BZZ  | 
      Tohoku | |||||||
| 7J7YAA- 7J7YMZ  | 
      ||||||||
| 7J8AAA- 7J8BZZ  | 
      Hokkaido | |||||||
| 7J8YAA- 7J8YMZ  | 
      ||||||||
| 7J9AAA- 7J9BZZ  | 
      Hokuriku | |||||||
| 7J9YAA- 7J9YMZ  | 
      ||||||||
| 7J0AAA- 7J0BZZ  | 
      Shin'etsu | |||||||
| 7J0YAA- 7J0YMZ  | 
      ||||||||